\r\n\t\t\t\r\n\t\t\tFigura 1: Suelos afectados por altos niveles de salinidad.<\/strong><\/span><\/p>\r\n\r\n\t\t\tFuente: Intagri.<\/strong><\/span><\/p>\r\n\t\t\t<\/td>\r\n\t\t<\/tr>\r\n\t<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n
\r\n
\r\n
Con base en el PSI<\/em> y los cambios que se presentan en los suelos y su efecto en el desarrollo vegetal, los suelos se clasifican en:<\/span><\/p>\r\n\r\n\r\n\tNo sódicos<\/strong>: PSI<\/em> < 7. No se ve afectado el rendimiento de los cultivos agrícolas.<\/span><\/li>\r\n\tLigeramente sódicos<\/strong>: PSI<\/em> 7 – 15. El rendimiento puede reducirse en suelos muy arcillosos.<\/span><\/li>\r\n\tMedianamente sódicos<\/strong>: PSI<\/em> 15 – 20. El rendimiento se reduce en la mayoría de los suelos.<\/span><\/li>\r\n\tFuertemente sódicos<\/strong>: PSI<\/em> 20 – 30. Los rendimientos ya no son redituables.<\/span><\/li>\r\n\tExtremadamente sódicos<\/strong>: PSI<\/em> > 30. No hay desarrollo de los cultivos agrícolas.<\/span><\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n
<\/div>\r\n\r\n
\r\n
\r\n\t\r\n\t\t\r\n\t\t\t\r\n\t\t\tFigura 2: El sodio intercambiable provoca la dispersión o floculación de las arcillas, las cuales tapan los poros del suelo. Esto disminuye drásticamente el flujo del agua y la conductividad hidráulica.<\/strong><\/span><\/p>\r\n\r\n\t\t\tFuente: Intagri.<\/strong><\/span><\/p>\r\n\t\t\t<\/td>\r\n\t\t<\/tr>\r\n\t<\/tbody>\r\n<\/table>\r\n<\/div>\r\n\r\n <\/div>\r\n<\/div>\r\n\r\n
\r\n
\r\n
Efectos de la sodicidad de las plantas <\/strong><\/span><\/h4>\r\n\r\n\r\n\tDesfloculación de las partículas del suelo provoca pérdida de la conductividad hidráulica del suelo.<\/span><\/li>\r\n\tAnaerobiosis.<\/span><\/li>\r\n\tAlto pH.<\/span><\/li>\r\n\tDisminución de la disponibilidad de nutrimentos.<\/span><\/li>\r\n\tCambios en la actividad microbiana.<\/span><\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n
\r\n
Recuperación de suelos sódicos <\/strong><\/span><\/h4>\r\n\r\nLos suelos sódicos son recuperados reemplazando el sodio intercambiable por calcio. Esto se logra comúnmente agregando yeso, pues es relativamente soluble y barato. Sin embargo, si los suelos son naturalmente altos en carbono de calcio (cal), se les puede aplicar sulfuro elemental de grano fino o ácido sulfúrico sin tener que aplicar calcio directamente a la tierra. El sulfuro debe mezclarse en la capa superficial del suelo. El ácido puede ser aplicado al suelo o inyectarse al agua de riego.<\/span><\/p>\r\n\r\nLa restauración de los suelos sódicos es un proceso lento. La recuperación ocurre secuencialmente con la profundidad conforme el calcio satura los sitios donde se da el intercambio de cationes y se desliza por el perfil del suelo. Por lo tanto, si se desea una recuperación más profunda, se necesita agregar suficiente yeso para asegurar que la recuperación se extienda a la profundidad deseada. Sin embargo, lo recomendable es no aplicar todo el yeso de una sola vez, ya que es más efectivo agregarlo de manera proporcional anualmente hasta alcanzar el porcentaje de sodio intercambiable (PSI) a la profundidad adecuada.<\/span><\/p>\r\n\r\nOtra recomendación que se debe considerar es la incorporación de materia orgánica, para ayudar a mantener la estructura del y lograr una infiltración adecuada.<\/span><\/p>\r\n\r\nCita correcta de este articulo<\/strong><\/span><\/h4>\r\n\r\nINTAGRI. 2023. Suelos Salinos. Serie Suelos, Núm.40. Artículos Técnicos de INTAGRI. México. 3 p.<\/span><\/p>\r\n\r\nLiteratura consultada<\/strong><\/span><\/h4>\r\n\r\n\r\n\tAnthony O´Geen. 2018. Recuperación de Suelos Salinos, Sódicos y Salino-Sódicos. Universidad de California. 1-5 p. <\/span><\/li>\r\n\tTerrazas, J. 2019. Aprovechamiento de suelo salino: Agricultura salina y recuperación de suelos. Universidad Mesoamericana de San Agustín. 1541-1549 p.<\/span><\/li>\r\n\tOrtiz, M. 2022. Suelos sódicos. Diplomado de Nutrición de Cultivos INTAGRI.<\/span><\/li>\r\n<\/ul>\r\n<\/div>\r\n\r\n\r\n
\r\n\t\r\n\t\t\r\n\t\t\t\r\n\t\t\tFigura 3: Deficiencias en la absorción y\/o asimilación de nutrimentos ocasionada por la sodicidad del suelo. <\/strong><\/span><\/p>\r\n\r\n\t\t\tFuente: Intagri.<\/strong><\/span><\/p>\r\n\t\t\t<\/td>\r\n\t\t<\/tr>\r\n\t<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\nContinuar leyendo<\/button><\/center>\r\n\r\n","has_cost":0,"creation":"2023-10-10 16:11:25","updated":"2024-09-13 09:35:27","published":"2023-10-18 08:06:53","cost":0,"badge":"mxn"},"availPoints":0,"articleCosts":[],"conversion":[0.004400000000000000265065747129256124026142060756683349609375,1,5634,19],"guest":true,"countries":[{"country_ID":1,"name":"Argentina","iso2":"ar","badge":"USD","conversion":19},{"country_ID":2,"name":"Belice","iso2":"bz","badge":"USD","conversion":19},{"country_ID":3,"name":"Bolivia","iso2":"bo","badge":"USD","conversion":19},{"country_ID":4,"name":"Canada","iso2":"ca","badge":"USD","conversion":19},{"country_ID":5,"name":"Chile","iso2":"cl","badge":"USD","conversion":19},{"country_ID":6,"name":"Colombia","iso2":"co","badge":"COP","conversion":0.004400000000000000265065747129256124026142060756683349609375},{"country_ID":7,"name":"Costa Rica","iso2":"cr","badge":"USD","conversion":19},{"country_ID":8,"name":"Cuba","iso2":"cu","badge":"USD","conversion":19},{"country_ID":9,"name":"Ecuador","iso2":"ec","badge":"USD","conversion":19},{"country_ID":10,"name":"El Salvador","iso2":"sv","badge":"USD","conversion":19},{"country_ID":11,"name":"Estados Unidos","iso2":"us","badge":"USD","conversion":19},{"country_ID":12,"name":"Guatemala","iso2":"gt","badge":"USD","conversion":19},{"country_ID":13,"name":"Guyana","iso2":"gy","badge":"USD","conversion":19},{"country_ID":14,"name":"Guayana Francesa","iso2":"gf","badge":"USD","conversion":19},{"country_ID":15,"name":"Honduras","iso2":"hn","badge":"USD","conversion":19},{"country_ID":16,"name":"México","iso2":"mx","badge":"MXN","conversion":1},{"country_ID":17,"name":"Nicaragua","iso2":"ni","badge":"USD","conversion":19},{"country_ID":18,"name":"Panamá","iso2":"pa","badge":"USD","conversion":19},{"country_ID":19,"name":"Paraguay","iso2":"py","badge":"USD","conversion":19},{"country_ID":20,"name":"Perú","iso2":"pe","badge":"PEN","conversion":5634},{"country_ID":21,"name":"Puerto Rico","iso2":"pr","badge":"USD","conversion":19},{"country_ID":22,"name":"Rep. Dominicana","iso2":"do","badge":"USD","conversion":19},{"country_ID":23,"name":"Surinam","iso2":"sr","badge":"USD","conversion":19},{"country_ID":24,"name":"Uruguay","iso2":"uy","badge":"USD","conversion":19},{"country_ID":25,"name":"Venezuela","iso2":"ve","badge":"USD","conversion":19},{"country_ID":26,"name":"Brasil","iso2":"br","badge":"USD","conversion":19},{"country_ID":27,"name":"España","iso2":"es","badge":"USD","conversion":19},{"country_ID":28,"name":"Australia","iso2":"au","badge":"USD","conversion":19},{"country_ID":29,"name":"Bahamas","iso2":"bs","badge":"USD","conversion":19},{"country_ID":30,"name":"Camerún","iso2":"cm","badge":"USD","conversion":19},{"country_ID":31,"name":"Italia","iso2":"it","badge":"USD","conversion":19}],"provinces":[{"province_ID":1,"country_ID":1,"name":"Buenos Aires"},{"province_ID":2,"country_ID":1,"name":"Buenos Aires Capital"},{"province_ID":3,"country_ID":1,"name":"Catamarca"},{"province_ID":4,"country_ID":1,"name":"Chaco"},{"province_ID":5,"country_ID":1,"name":"Chubut"},{"province_ID":6,"country_ID":1,"name":"Cordoba"},{"province_ID":7,"country_ID":1,"name":"Corrientes"},{"province_ID":8,"country_ID":1,"name":"Entre Rios"},{"province_ID":9,"country_ID":1,"name":"Formosa"},{"province_ID":10,"country_ID":1,"name":"Jujuy"},{"province_ID":11,"country_ID":1,"name":"La Pampa"},{"province_ID":12,"country_ID":1,"name":"La Rioja"},{"province_ID":13,"country_ID":1,"name":"Mendoza"},{"province_ID":14,"country_ID":1,"name":"Misiones"},{"province_ID":15,"country_ID":1,"name":"Neuquen"},{"province_ID":16,"country_ID":1,"name":"Rio Negro"},{"province_ID":17,"country_ID":1,"name":"Salta"},{"province_ID":18,"country_ID":1,"name":"San Juan"},{"province_ID":19,"country_ID":1,"name":"San Luis"},{"province_ID":20,"country_ID":1,"name":"Santa Cruz"},{"province_ID":21,"country_ID":1,"name":"Santa Fe"},{"province_ID":22,"country_ID":1,"name":"Santiago del Estero"},{"province_ID":23,"country_ID":1,"name":"Tierra del Fuego"},{"province_ID":24,"country_ID":1,"name":"Tucuman"},{"province_ID":25,"country_ID":2,"name":"Belice"},{"province_ID":26,"country_ID":2,"name":"Cayo"},{"province_ID":27,"country_ID":2,"name":"Corozal"},{"province_ID":28,"country_ID":2,"name":"Orange Walk"},{"province_ID":29,"country_ID":2,"name":"Stann Creek"},{"province_ID":30,"country_ID":2,"name":"Toledo"},{"province_ID":31,"country_ID":3,"name":"Chuquisaca"},{"province_ID":32,"country_ID":3,"name":"Cochabamba"},{"province_ID":33,"country_ID":3,"name":"Beni"},{"province_ID":34,"country_ID":3,"name":"La Paz"},{"province_ID":35,"country_ID":3,"name":"Oruro"},{"province_ID":36,"country_ID":3,"name":"Pando"},{"province_ID":37,"country_ID":3,"name":"Potosi"},{"province_ID":38,"country_ID":3,"name":"Santa Cruz"},{"province_ID":39,"country_ID":3,"name":"Tarija"},{"province_ID":40,"country_ID":4,"name":"Alberta"},{"province_ID":41,"country_ID":4,"name":"British Columbia"},{"province_ID":42,"country_ID":4,"name":"Manitoba"},{"province_ID":43,"country_ID":4,"name":"New Brunswick"},{"province_ID":44,"country_ID":4,"name":"Newfoundland and Labrador"},{"province_ID":45,"country_ID":4,"name":"Nova Scotia"},{"province_ID":46,"country_ID":4,"name":"Ontario"},{"province_ID":47,"country_ID":4,"name":"Prince Edward Island"},{"province_ID":48,"country_ID":4,"name":"Quebec"},{"province_ID":49,"country_ID":4,"name":"Saskatchewan"},{"province_ID":50,"country_ID":4,"name":"Northwest Territories"},{"province_ID":51,"country_ID":4,"name":"Nunavut"},{"province_ID":52,"country_ID":4,"name":"Yukon"},{"province_ID":53,"country_ID":5,"name":"Aysen"},{"province_ID":54,"country_ID":5,"name":"Antofagasta"},{"province_ID":55,"country_ID":5,"name":"Araucania"},{"province_ID":56,"country_ID":5,"name":"Atacama"},{"province_ID":57,"country_ID":5,"name":"Bio-Bio"},{"province_ID":58,"country_ID":5,"name":"Coquimbo"},{"province_ID":59,"country_ID":5,"name":"O'Higgins"},{"province_ID":60,"country_ID":5,"name":"Los Lagos"},{"province_ID":61,"country_ID":5,"name":"Magallanes y la Antartica Chilena"},{"province_ID":62,"country_ID":5,"name":"Maule"},{"province_ID":63,"country_ID":5,"name":"Santiago Region Metropolitana"},{"province_ID":64,"country_ID":5,"name":"Tarapaca"},{"province_ID":65,"country_ID":5,"name":"Valparaiso"},{"province_ID":66,"country_ID":6,"name":"Amazonas"},{"province_ID":67,"country_ID":6,"name":"Antioquia"},{"province_ID":68,"country_ID":6,"name":"Arauca"},{"province_ID":69,"country_ID":6,"name":"Atlantico"},{"province_ID":70,"country_ID":6,"name":"Bogota District Capital"},{"province_ID":71,"country_ID":6,"name":"Bolivar"},{"province_ID":72,"country_ID":6,"name":"Boyaca"},{"province_ID":73,"country_ID":6,"name":"Caldas"},{"province_ID":74,"country_ID":6,"name":"Caqueta"},{"province_ID":75,"country_ID":6,"name":"Casanare"},{"province_ID":76,"country_ID":6,"name":"Cauca"},{"province_ID":77,"country_ID":6,"name":"Cesar"},{"province_ID":78,"country_ID":6,"name":"Choco"},{"province_ID":79,"country_ID":6,"name":"Cordoba"},{"province_ID":80,"country_ID":6,"name":"Cundinamarca"},{"province_ID":81,"country_ID":6,"name":"Guainia"},{"province_ID":82,"country_ID":6,"name":"Guaviare"},{"province_ID":83,"country_ID":6,"name":"Huila"},{"province_ID":84,"country_ID":6,"name":"La Guajira"},{"province_ID":85,"country_ID":6,"name":"Magdalena"},{"province_ID":86,"country_ID":6,"name":"Meta"},{"province_ID":87,"country_ID":6,"name":"Narino"},{"province_ID":88,"country_ID":6,"name":"Norte de Santander"},{"province_ID":89,"country_ID":6,"name":"Putumayo"},{"province_ID":90,"country_ID":6,"name":"Quindio"},{"province_ID":91,"country_ID":6,"name":"Risaralda"},{"province_ID":92,"country_ID":6,"name":"San Andres & Providencia"},{"province_ID":93,"country_ID":6,"name":"Santander"},{"province_ID":94,"country_ID":6,"name":"Sucre"},{"province_ID":95,"country_ID":6,"name":"Tolima"},{"province_ID":96,"country_ID":6,"name":"Valle del Cauca"},{"province_ID":97,"country_ID":6,"name":"Vaupes"},{"province_ID":98,"country_ID":6,"name":"Vichada"},{"province_ID":99,"country_ID":7,"name":"Alajuela"},{"province_ID":100,"country_ID":7,"name":"Cartago"},{"province_ID":101,"country_ID":7,"name":"Guanacaste"},{"province_ID":102,"country_ID":7,"name":"Heredia"},{"province_ID":103,"country_ID":7,"name":"Limon"},{"province_ID":104,"country_ID":7,"name":"Puntarenas"},{"province_ID":105,"country_ID":7,"name":"San Jose"},{"province_ID":106,"country_ID":8,"name":"Camaguey"},{"province_ID":107,"country_ID":8,"name":"Ciego de Avila"},{"province_ID":108,"country_ID":8,"name":"Cienfuegos"},{"province_ID":109,"country_ID":8,"name":"Ciudad de La Habana"},{"province_ID":110,"country_ID":8,"name":"Granma"},{"province_ID":111,"country_ID":8,"name":"Guantanamo"},{"province_ID":112,"country_ID":8,"name":"Holguin"},{"province_ID":113,"country_ID":8,"name":"Isla de la Juventud"},{"province_ID":114,"country_ID":8,"name":"La Habana"},{"province_ID":115,"country_ID":8,"name":"Las Tunas"},{"province_ID":116,"country_ID":8,"name":"Matanzas"},{"province_ID":117,"country_ID":8,"name":"Pinar del Rio"},{"province_ID":118,"country_ID":8,"name":"Sancti Spiritus"},{"province_ID":119,"country_ID":8,"name":"Santiago de Cuba"},{"province_ID":120,"country_ID":8,"name":"Villa Clara"},{"province_ID":121,"country_ID":9,"name":"Azuay"},{"province_ID":122,"country_ID":9,"name":"Bolivar"},{"province_ID":123,"country_ID":9,"name":"Canar"},{"province_ID":124,"country_ID":9,"name":"Carchi"},{"province_ID":125,"country_ID":9,"name":"Chimborazo"},{"province_ID":126,"country_ID":9,"name":"Cotopaxi"},{"province_ID":127,"country_ID":9,"name":"El Oro"},{"province_ID":128,"country_ID":9,"name":"Esmeraldas"},{"province_ID":129,"country_ID":9,"name":"Galapagos"},{"province_ID":130,"country_ID":9,"name":"Guayas"},{"province_ID":131,"country_ID":9,"name":"Imbabura"},{"province_ID":132,"country_ID":9,"name":"Loja"},{"province_ID":133,"country_ID":9,"name":"Los Rios"},{"province_ID":134,"country_ID":9,"name":"Manabi"},{"province_ID":135,"country_ID":9,"name":"Morona-Santiago"},{"province_ID":136,"country_ID":9,"name":"Napo"},{"province_ID":137,"country_ID":9,"name":"Orellana"},{"province_ID":138,"country_ID":9,"name":"Pastaza"},{"province_ID":139,"country_ID":9,"name":"Pichincha"},{"province_ID":140,"country_ID":9,"name":"Sucumbios"},{"province_ID":141,"country_ID":9,"name":"Tungurahua"},{"province_ID":142,"country_ID":9,"name":"Zamora-Chinchipe"},{"province_ID":143,"country_ID":10,"name":"Ahuachapan"},{"province_ID":144,"country_ID":10,"name":"Cabanas"},{"province_ID":145,"country_ID":10,"name":"Chalatenango"},{"province_ID":146,"country_ID":10,"name":"Cuscatlan"},{"province_ID":147,"country_ID":10,"name":"La Libertad"},{"province_ID":148,"country_ID":10,"name":"La Paz"},{"province_ID":149,"country_ID":10,"name":"La Union"},{"province_ID":150,"country_ID":10,"name":"Morazan"},{"province_ID":151,"country_ID":10,"name":"San Miguel"},{"province_ID":152,"country_ID":10,"name":"San Salvador"},{"province_ID":153,"country_ID":10,"name":"Santa Ana"},{"province_ID":154,"country_ID":10,"name":"San Vicente"},{"province_ID":155,"country_ID":10,"name":"Sonsonate"},{"province_ID":156,"country_ID":10,"name":"Usulutan"},{"province_ID":157,"country_ID":11,"name":"Alabama"},{"province_ID":158,"country_ID":11,"name":"Alaska"},{"province_ID":159,"country_ID":11,"name":"Arizona"},{"province_ID":160,"country_ID":11,"name":"Arkansas"},{"province_ID":161,"country_ID":11,"name":"California"},{"province_ID":162,"country_ID":11,"name":"Colorado"},{"province_ID":163,"country_ID":11,"name":"Connecticut"},{"province_ID":164,"country_ID":11,"name":"Delaware"},{"province_ID":165,"country_ID":11,"name":"District of Columbia"},{"province_ID":166,"country_ID":11,"name":"Florida"},{"province_ID":167,"country_ID":11,"name":"Georgia"},{"province_ID":168,"country_ID":11,"name":"Hawaii"},{"province_ID":169,"country_ID":11,"name":"Idaho"},{"province_ID":170,"country_ID":11,"name":"Illinois"},{"province_ID":171,"country_ID":11,"name":"Indiana"},{"province_ID":172,"country_ID":11,"name":"Iowa"},{"province_ID":173,"country_ID":11,"name":"Kansas"},{"province_ID":174,"country_ID":11,"name":"Kentucky"},{"province_ID":175,"country_ID":11,"name":"Louisiana"},{"province_ID":176,"country_ID":11,"name":"Maine"},{"province_ID":177,"country_ID":11,"name":"Maryland"},{"province_ID":178,"country_ID":11,"name":"Massachusetts"},{"province_ID":179,"country_ID":11,"name":"Michigan"},{"province_ID":180,"country_ID":11,"name":"Minnesota"},{"province_ID":181,"country_ID":11,"name":"Mississippi"},{"province_ID":182,"country_ID":11,"name":"Missouri"},{"province_ID":183,"country_ID":11,"name":"Montana"},{"province_ID":184,"country_ID":11,"name":"Nebraska"},{"province_ID":185,"country_ID":11,"name":"Nevada"},{"province_ID":186,"country_ID":11,"name":"New Hampshire"},{"province_ID":187,"country_ID":11,"name":"New Jersey"},{"province_ID":188,"country_ID":11,"name":"New Mexico"},{"province_ID":189,"country_ID":11,"name":"New York"},{"province_ID":190,"country_ID":11,"name":"North Carolina"},{"province_ID":191,"country_ID":11,"name":"North Dakota"},{"province_ID":192,"country_ID":11,"name":"Ohio"},{"province_ID":193,"country_ID":11,"name":"Oklahoma"},{"province_ID":194,"country_ID":11,"name":"Oregon"},{"province_ID":195,"country_ID":11,"name":"Pennsylvania"},{"province_ID":196,"country_ID":11,"name":"Rhode Island"},{"province_ID":197,"country_ID":11,"name":"South Carolina"},{"province_ID":198,"country_ID":11,"name":"South Dakota"},{"province_ID":199,"country_ID":11,"name":"Tennessee"},{"province_ID":200,"country_ID":11,"name":"Texas"},{"province_ID":201,"country_ID":11,"name":"Utah"},{"province_ID":202,"country_ID":11,"name":"Vermont"},{"province_ID":203,"country_ID":11,"name":"Virginia"},{"province_ID":204,"country_ID":11,"name":"Washington"},{"province_ID":205,"country_ID":11,"name":"West Virginia"},{"province_ID":206,"country_ID":11,"name":"Wisconsin"},{"province_ID":207,"country_ID":11,"name":"Wyoming"},{"province_ID":208,"country_ID":12,"name":"Alta Verapaz"},{"province_ID":209,"country_ID":12,"name":"Baja Verapaz"},{"province_ID":210,"country_ID":12,"name":"Chimaltenango"},{"province_ID":211,"country_ID":12,"name":"Chiquimula"},{"province_ID":212,"country_ID":12,"name":"El Progreso"},{"province_ID":213,"country_ID":12,"name":"Escuintla"},{"province_ID":214,"country_ID":12,"name":"Guatemala"},{"province_ID":215,"country_ID":12,"name":"Huehuetenango"},{"province_ID":216,"country_ID":12,"name":"Izabal"},{"province_ID":217,"country_ID":12,"name":"Jalapa"},{"province_ID":218,"country_ID":12,"name":"Jutiapa"},{"province_ID":219,"country_ID":12,"name":"Peten"},{"province_ID":220,"country_ID":12,"name":"Quetzaltenango"},{"province_ID":221,"country_ID":12,"name":"Quiche"},{"province_ID":222,"country_ID":12,"name":"Retalhuleu"},{"province_ID":223,"country_ID":12,"name":"Sacatepequez"},{"province_ID":224,"country_ID":12,"name":"San Marcos"},{"province_ID":225,"country_ID":12,"name":"Santa Rosa"},{"province_ID":226,"country_ID":12,"name":"Solola"},{"province_ID":227,"country_ID":12,"name":"Suchitepequez"},{"province_ID":228,"country_ID":12,"name":"Totonicapan"},{"province_ID":229,"country_ID":12,"name":"Zacapa"},{"province_ID":230,"country_ID":13,"name":"Barima-Waini"},{"province_ID":231,"country_ID":13,"name":"Cuyuni-Mazaruni"},{"province_ID":232,"country_ID":13,"name":"Demerara-Mahaica"},{"province_ID":233,"country_ID":13,"name":"East Berbice-Corentyne"},{"province_ID":234,"country_ID":13,"name":"Essequibo Islands-West Demerara"},{"province_ID":235,"country_ID":13,"name":"Mahaica-Berbice"},{"province_ID":236,"country_ID":13,"name":"Pomeroon-Supenaam"},{"province_ID":237,"country_ID":13,"name":"Potaro-Siparuni"},{"province_ID":238,"country_ID":13,"name":"Upper Demerara-Berbice"},{"province_ID":239,"country_ID":13,"name":"Upper Takutu-Upper Essequibo"},{"province_ID":240,"country_ID":14,"name":"Distrito de Cayenne"},{"province_ID":241,"country_ID":14,"name":"Distrito de Saint-Laurent-du-Maroni"},{"province_ID":242,"country_ID":15,"name":"Atlantida"},{"province_ID":243,"country_ID":15,"name":"Choluteca"},{"province_ID":244,"country_ID":15,"name":"Colon"},{"province_ID":245,"country_ID":15,"name":"Comayagua"},{"province_ID":246,"country_ID":15,"name":"Copan"},{"province_ID":247,"country_ID":15,"name":"Cortes"},{"province_ID":248,"country_ID":15,"name":"El Paraiso"},{"province_ID":249,"country_ID":15,"name":"Francisco Morazan"},{"province_ID":250,"country_ID":15,"name":"Gracias a Dios"},{"province_ID":251,"country_ID":15,"name":"Intibuca"},{"province_ID":252,"country_ID":15,"name":"Islas de la Bahia"},{"province_ID":253,"country_ID":15,"name":"La Paz"},{"province_ID":254,"country_ID":15,"name":"Lempira"},{"province_ID":255,"country_ID":15,"name":"Ocotepeque"},{"province_ID":256,"country_ID":15,"name":"Olancho"},{"province_ID":257,"country_ID":15,"name":"Santa Barbara"},{"province_ID":258,"country_ID":15,"name":"Valle"},{"province_ID":259,"country_ID":15,"name":"Yoro"},{"province_ID":260,"country_ID":16,"name":"Aguascalientes"},{"province_ID":261,"country_ID":16,"name":"Baja California"},{"province_ID":262,"country_ID":16,"name":"Baja California Sur"},{"province_ID":263,"country_ID":16,"name":"Campeche"},{"province_ID":264,"country_ID":16,"name":"Chiapas"},{"province_ID":265,"country_ID":16,"name":"Chihuahua"},{"province_ID":266,"country_ID":16,"name":"Coahuila de Zaragoza"},{"province_ID":267,"country_ID":16,"name":"Colima"},{"province_ID":268,"country_ID":16,"name":"Distrito Federal"},{"province_ID":269,"country_ID":16,"name":"Durango"},{"province_ID":270,"country_ID":16,"name":"Guanajuato"},{"province_ID":271,"country_ID":16,"name":"Guerrero"},{"province_ID":272,"country_ID":16,"name":"Hidalgo"},{"province_ID":273,"country_ID":16,"name":"Jalisco"},{"province_ID":274,"country_ID":16,"name":"Mexico"},{"province_ID":275,"country_ID":16,"name":"Michoacan de Ocampo"},{"province_ID":276,"country_ID":16,"name":"Morelos"},{"province_ID":277,"country_ID":16,"name":"Nayarit"},{"province_ID":278,"country_ID":16,"name":"Nuevo Leon"},{"province_ID":279,"country_ID":16,"name":"Oaxaca"},{"province_ID":280,"country_ID":16,"name":"Puebla"},{"province_ID":281,"country_ID":16,"name":"Queretaro de Arteaga"},{"province_ID":282,"country_ID":16,"name":"Quintana Roo"},{"province_ID":283,"country_ID":16,"name":"San Luis Potosi"},{"province_ID":284,"country_ID":16,"name":"Sinaloa"},{"province_ID":285,"country_ID":16,"name":"Sonora"},{"province_ID":286,"country_ID":16,"name":"Tabasco"},{"province_ID":287,"country_ID":16,"name":"Tamaulipas"},{"province_ID":288,"country_ID":16,"name":"Tlaxcala"},{"province_ID":289,"country_ID":16,"name":"Veracruz-Llave"},{"province_ID":290,"country_ID":16,"name":"Yucatan"},{"province_ID":291,"country_ID":16,"name":"Zacatecas"},{"province_ID":292,"country_ID":17,"name":"Atlantico Norte"},{"province_ID":293,"country_ID":17,"name":"Atlantico Sur"},{"province_ID":294,"country_ID":17,"name":"Boaco"},{"province_ID":295,"country_ID":17,"name":"Carazo"},{"province_ID":296,"country_ID":17,"name":"Chinandega"},{"province_ID":297,"country_ID":17,"name":"Chontales"},{"province_ID":298,"country_ID":17,"name":"Esteli"},{"province_ID":299,"country_ID":17,"name":"Granada"},{"province_ID":300,"country_ID":17,"name":"Jinotega"},{"province_ID":301,"country_ID":17,"name":"Leon"},{"province_ID":302,"country_ID":17,"name":"Madriz"},{"province_ID":303,"country_ID":17,"name":"Managua"},{"province_ID":304,"country_ID":17,"name":"Masaya"},{"province_ID":305,"country_ID":17,"name":"Matagalpa"},{"province_ID":306,"country_ID":17,"name":"Nueva Segovia"},{"province_ID":307,"country_ID":17,"name":"Rio San Juan"},{"province_ID":308,"country_ID":17,"name":"Rivas"},{"province_ID":309,"country_ID":18,"name":"Bocas del Toro"},{"province_ID":310,"country_ID":18,"name":"Chiriqui"},{"province_ID":311,"country_ID":18,"name":"Cocle"},{"province_ID":312,"country_ID":18,"name":"Colon"},{"province_ID":313,"country_ID":18,"name":"Darien"},{"province_ID":314,"country_ID":18,"name":"Herrera"},{"province_ID":315,"country_ID":18,"name":"Los Santos"},{"province_ID":316,"country_ID":18,"name":"Panama"},{"province_ID":317,"country_ID":18,"name":"San Blas"},{"province_ID":318,"country_ID":18,"name":"Veraguas"},{"province_ID":319,"country_ID":19,"name":"Alto Paraguay"},{"province_ID":320,"country_ID":19,"name":"Alto Parana"},{"province_ID":321,"country_ID":19,"name":"Amambay"},{"province_ID":322,"country_ID":19,"name":"Asuncion"},{"province_ID":323,"country_ID":19,"name":"Boqueron"},{"province_ID":324,"country_ID":19,"name":"Caaguazu"},{"province_ID":325,"country_ID":19,"name":"Caazapa"},{"province_ID":326,"country_ID":19,"name":"Canindeyu"},{"province_ID":327,"country_ID":19,"name":"Central"},{"province_ID":328,"country_ID":19,"name":"Concepcion"},{"province_ID":329,"country_ID":19,"name":"Cordillera"},{"province_ID":330,"country_ID":19,"name":"Guaira"},{"province_ID":331,"country_ID":19,"name":"Itapua"},{"province_ID":332,"country_ID":19,"name":"Misiones"},{"province_ID":333,"country_ID":19,"name":"Neembucu"},{"province_ID":334,"country_ID":19,"name":"Paraguari"},{"province_ID":335,"country_ID":19,"name":"Presidente Hayes"},{"province_ID":336,"country_ID":19,"name":"San Pedro"},{"province_ID":337,"country_ID":20,"name":"Amazonas"},{"province_ID":338,"country_ID":20,"name":"Ancash"},{"province_ID":339,"country_ID":20,"name":"Apurimac"},{"province_ID":340,"country_ID":20,"name":"Arequipa"},{"province_ID":341,"country_ID":20,"name":"Ayacucho"},{"province_ID":342,"country_ID":20,"name":"Cajamarca"},{"province_ID":343,"country_ID":20,"name":"Callao"},{"province_ID":344,"country_ID":20,"name":"Cusco"},{"province_ID":345,"country_ID":20,"name":"Huancavelica"},{"province_ID":346,"country_ID":20,"name":"Huanuco"},{"province_ID":347,"country_ID":20,"name":"Ica"},{"province_ID":348,"country_ID":20,"name":"Junin"},{"province_ID":349,"country_ID":20,"name":"La Libertad"},{"province_ID":350,"country_ID":20,"name":"Lambayeque"},{"province_ID":351,"country_ID":20,"name":"Lima"},{"province_ID":352,"country_ID":20,"name":"Loreto"},{"province_ID":353,"country_ID":20,"name":"Madre de Dios"},{"province_ID":354,"country_ID":20,"name":"Moquegua"},{"province_ID":355,"country_ID":20,"name":"Pasco"},{"province_ID":356,"country_ID":20,"name":"Piura"},{"province_ID":357,"country_ID":20,"name":"Puno"},{"province_ID":358,"country_ID":20,"name":"San Martin"},{"province_ID":359,"country_ID":20,"name":"Tacna"},{"province_ID":360,"country_ID":20,"name":"Tumbes"},{"province_ID":361,"country_ID":20,"name":"Ucayali"},{"province_ID":362,"country_ID":21,"name":"Puerto Rico"},{"province_ID":363,"country_ID":22,"name":"Azua"},{"province_ID":364,"country_ID":22,"name":"Baoruco"},{"province_ID":365,"country_ID":22,"name":"Barahona"},{"province_ID":366,"country_ID":22,"name":"Dajabon"},{"province_ID":367,"country_ID":22,"name":"Distrito Nacional"},{"province_ID":368,"country_ID":22,"name":"Duarte"},{"province_ID":369,"country_ID":22,"name":"Elias Pina"},{"province_ID":370,"country_ID":22,"name":"El Seibo"},{"province_ID":371,"country_ID":22,"name":"Espaillat"},{"province_ID":372,"country_ID":22,"name":"Hato Mayor"},{"province_ID":373,"country_ID":22,"name":"Independencia"},{"province_ID":374,"country_ID":22,"name":"La Altagracia"},{"province_ID":375,"country_ID":22,"name":"La Romana"},{"province_ID":376,"country_ID":22,"name":"La Vega"},{"province_ID":377,"country_ID":22,"name":"Maria Trinidad Sanchez"},{"province_ID":378,"country_ID":22,"name":"Monsenor Nouel"},{"province_ID":379,"country_ID":22,"name":"Monte Cristi"},{"province_ID":380,"country_ID":22,"name":"Monte Plata"},{"province_ID":381,"country_ID":22,"name":"Pedernales"},{"province_ID":382,"country_ID":22,"name":"Peravia"},{"province_ID":383,"country_ID":22,"name":"Puerto Plata"},{"province_ID":384,"country_ID":22,"name":"Salcedo"},{"province_ID":385,"country_ID":22,"name":"Samana"},{"province_ID":386,"country_ID":22,"name":"Sanchez Ramirez"},{"province_ID":387,"country_ID":22,"name":"San Cristobal"},{"province_ID":388,"country_ID":22,"name":"San Jose de Ocoa"},{"province_ID":389,"country_ID":22,"name":"San Juan"},{"province_ID":390,"country_ID":22,"name":"San Pedro de Macoris"},{"province_ID":391,"country_ID":22,"name":"Santiago"},{"province_ID":392,"country_ID":22,"name":"Santiago Rodriguez"},{"province_ID":393,"country_ID":22,"name":"Santo Domingo"},{"province_ID":394,"country_ID":22,"name":"Valverde"},{"province_ID":395,"country_ID":23,"name":"Brokopondo"},{"province_ID":396,"country_ID":23,"name":"Commewijne"},{"province_ID":397,"country_ID":23,"name":"Coronie"},{"province_ID":398,"country_ID":23,"name":"Marowijne"},{"province_ID":399,"country_ID":23,"name":"Nickerie"},{"province_ID":400,"country_ID":23,"name":"Para"},{"province_ID":401,"country_ID":23,"name":"Paramaribo"},{"province_ID":402,"country_ID":23,"name":"Saramacca"},{"province_ID":403,"country_ID":23,"name":"Sipaliwini"},{"province_ID":404,"country_ID":23,"name":"Wanica"},{"province_ID":405,"country_ID":24,"name":"Artigas"},{"province_ID":406,"country_ID":24,"name":"Canelones"},{"province_ID":407,"country_ID":24,"name":"Cerro Largo"},{"province_ID":408,"country_ID":24,"name":"Colonia"},{"province_ID":409,"country_ID":24,"name":"Durazno"},{"province_ID":410,"country_ID":24,"name":"Flores"},{"province_ID":411,"country_ID":24,"name":"Florida"},{"province_ID":412,"country_ID":24,"name":"Lavalleja"},{"province_ID":413,"country_ID":24,"name":"Maldonado"},{"province_ID":414,"country_ID":24,"name":"Montevideo"},{"province_ID":415,"country_ID":24,"name":"Paysandu"},{"province_ID":416,"country_ID":24,"name":"Rio Negro"},{"province_ID":417,"country_ID":24,"name":"Rivera"},{"province_ID":418,"country_ID":24,"name":"Rocha"},{"province_ID":419,"country_ID":24,"name":"Salto"},{"province_ID":420,"country_ID":24,"name":"San Jose"},{"province_ID":421,"country_ID":24,"name":"Soriano"},{"province_ID":422,"country_ID":24,"name":"Tacuarembo"},{"province_ID":423,"country_ID":24,"name":"Treinta y Tres"},{"province_ID":424,"country_ID":25,"name":"Amazonas"},{"province_ID":425,"country_ID":25,"name":"Anzoategui"},{"province_ID":426,"country_ID":25,"name":"Apure"},{"province_ID":427,"country_ID":25,"name":"Aragua"},{"province_ID":428,"country_ID":25,"name":"Barinas"},{"province_ID":429,"country_ID":25,"name":"Bolivar"},{"province_ID":430,"country_ID":25,"name":"Carabobo"},{"province_ID":431,"country_ID":25,"name":"Cojedes"},{"province_ID":432,"country_ID":25,"name":"Delta Amacuro"},{"province_ID":433,"country_ID":25,"name":"Dependencias Federales"},{"province_ID":434,"country_ID":25,"name":"Distrito Federal"},{"province_ID":435,"country_ID":25,"name":"Falcon"},{"province_ID":436,"country_ID":25,"name":"Guarico"},{"province_ID":437,"country_ID":25,"name":"Lara"},{"province_ID":438,"country_ID":25,"name":"Merida"},{"province_ID":439,"country_ID":25,"name":"Miranda"},{"province_ID":440,"country_ID":25,"name":"Monagas"},{"province_ID":441,"country_ID":25,"name":"Nueva Esparta"},{"province_ID":442,"country_ID":25,"name":"Portuguesa"},{"province_ID":443,"country_ID":25,"name":"Sucre"},{"province_ID":444,"country_ID":25,"name":"Tachira"},{"province_ID":445,"country_ID":25,"name":"Trujillo"},{"province_ID":446,"country_ID":25,"name":"Vargas"},{"province_ID":447,"country_ID":25,"name":"Yaracuy"},{"province_ID":448,"country_ID":25,"name":"Zulia"},{"province_ID":449,"country_ID":26,"name":"Acre"},{"province_ID":450,"country_ID":26,"name":"Alagoas"},{"province_ID":451,"country_ID":26,"name":"Amapá"},{"province_ID":452,"country_ID":26,"name":"Amazonas"},{"province_ID":453,"country_ID":26,"name":"Bahia"},{"province_ID":454,"country_ID":26,"name":"Ceará"},{"province_ID":455,"country_ID":26,"name":"Distrito Federal"},{"province_ID":456,"country_ID":26,"name":"Espírito Santo"},{"province_ID":457,"country_ID":26,"name":"Goiás"},{"province_ID":458,"country_ID":26,"name":"Maranhão"},{"province_ID":459,"country_ID":26,"name":"Mato Grosso"},{"province_ID":460,"country_ID":26,"name":"Mato Grosso do Sul"},{"province_ID":461,"country_ID":26,"name":"Minas Gerais"},{"province_ID":462,"country_ID":26,"name":"Pará"},{"province_ID":463,"country_ID":26,"name":"Paraíba"},{"province_ID":464,"country_ID":26,"name":"Paraná"},{"province_ID":465,"country_ID":26,"name":"Pernambuco"},{"province_ID":466,"country_ID":26,"name":"Piauí"},{"province_ID":467,"country_ID":26,"name":"Rio de Janeiro"},{"province_ID":468,"country_ID":26,"name":"Rio Grande do Norte"},{"province_ID":469,"country_ID":26,"name":"Rio Grande do Sul"},{"province_ID":470,"country_ID":26,"name":"Rondônia"},{"province_ID":471,"country_ID":26,"name":"Roraima"},{"province_ID":472,"country_ID":26,"name":"Santa Catarina"},{"province_ID":473,"country_ID":26,"name":"São Paulo"},{"province_ID":474,"country_ID":26,"name":"Sergipe"},{"province_ID":475,"country_ID":26,"name":"Tocantins"},{"province_ID":476,"country_ID":27,"name":"Álava"},{"province_ID":477,"country_ID":27,"name":"Albacete"},{"province_ID":478,"country_ID":27,"name":"Alicante"},{"province_ID":479,"country_ID":27,"name":"Almería"},{"province_ID":480,"country_ID":27,"name":"Principado de Asturias"},{"province_ID":481,"country_ID":27,"name":"Ávila"},{"province_ID":482,"country_ID":27,"name":"Badajoz"},{"province_ID":483,"country_ID":27,"name":"Barcelona"},{"province_ID":484,"country_ID":27,"name":"Burgos"},{"province_ID":485,"country_ID":27,"name":"Cáceres"},{"province_ID":486,"country_ID":27,"name":"Cádiz"},{"province_ID":487,"country_ID":27,"name":"Cantabria"},{"province_ID":488,"country_ID":27,"name":"Castellón"},{"province_ID":489,"country_ID":27,"name":"Ciudad Real"},{"province_ID":490,"country_ID":27,"name":"Córdoba"},{"province_ID":491,"country_ID":27,"name":"La Coruña"},{"province_ID":492,"country_ID":27,"name":"Cuenca"},{"province_ID":493,"country_ID":27,"name":"Gerona"},{"province_ID":494,"country_ID":27,"name":"Granada"},{"province_ID":495,"country_ID":27,"name":"Guadalajara"},{"province_ID":496,"country_ID":27,"name":"Guipúzcoa"},{"province_ID":497,"country_ID":27,"name":"Huelva"},{"province_ID":498,"country_ID":27,"name":"Huesca"},{"province_ID":499,"country_ID":27,"name":"Islas Baleares"},{"province_ID":500,"country_ID":27,"name":"Jaén"},{"province_ID":501,"country_ID":27,"name":"León"},{"province_ID":502,"country_ID":27,"name":"Lérida"},{"province_ID":503,"country_ID":27,"name":"Lugo"},{"province_ID":504,"country_ID":27,"name":"Madrid"},{"province_ID":505,"country_ID":27,"name":"Málaga"},{"province_ID":506,"country_ID":27,"name":"Región de Murcia"},{"province_ID":507,"country_ID":27,"name":"Comunidad Foral de Navarra"},{"province_ID":508,"country_ID":27,"name":"Orense"},{"province_ID":509,"country_ID":27,"name":"Palencia"},{"province_ID":510,"country_ID":27,"name":"Las Palmas"},{"province_ID":511,"country_ID":27,"name":"Pontevedra"},{"province_ID":512,"country_ID":27,"name":"La Rioja"},{"province_ID":513,"country_ID":27,"name":"Salamanca"},{"province_ID":514,"country_ID":27,"name":"Segovia"},{"province_ID":515,"country_ID":27,"name":"Sevilla"},{"province_ID":516,"country_ID":27,"name":"Soria"},{"province_ID":517,"country_ID":27,"name":"Tarragona"},{"province_ID":518,"country_ID":27,"name":"Santa Cruz de Tenerife"},{"province_ID":519,"country_ID":27,"name":"Teruel"},{"province_ID":520,"country_ID":27,"name":"Toledo"},{"province_ID":521,"country_ID":27,"name":"Valencia"},{"province_ID":522,"country_ID":27,"name":"Valladolid"},{"province_ID":523,"country_ID":27,"name":"Vizcaya"},{"province_ID":524,"country_ID":27,"name":"Zamora"},{"province_ID":525,"country_ID":27,"name":"Zaragoza"},{"province_ID":526,"country_ID":27,"name":"Melilla"},{"province_ID":527,"country_ID":27,"name":"Ceuta"},{"province_ID":528,"country_ID":28,"name":"Australia"},{"province_ID":529,"country_ID":29,"name":"Bahamas"},{"province_ID":530,"country_ID":30,"name":"Camerún"},{"province_ID":531,"country_ID":31,"name":"Italia"}],"occupations":["Agricultor,Productor Primario","Asesor Técnico","Vendedor de Fertilizantes","Vendedor de Agroquímicos","Vendedor de Semillas","Vendedor de Insumos Orgánicos","Vendedor de Agroinsumos en General","Profesor o Investigador","Estudiante","Sector Gobierno o Financiero","Otro","Productor Ganadero"],"siteKey":"6LcoBxwTAAAAAIHGYfRC7q_PWI1Ixdpc63kgLXLw"}]},{"file":"\/home\/intagri\/public_html\/libs\/articles\/articles.php","line":220,"function":"articleSignup","args":[{"article_ID":833,"views":21667,"title":"Suelos Sódicos","fb_title":"","link":"suelos-sodicos","desc":"Los suelos sódicos son aquellos que presentan un alto porcentaje de sodio intercambiable, actualmente este tipo de suelo se han vuelto un problema limitante en la producción de cultivos, con los efectos del cambio climático, el mal uso de las aguas de riego y fertilizantes, este problema incrementa año tras año. Los suelos con un alto contenido de sodio representan un problema para el crecimiento de las plantas al verse afectados diversos procesos fisiológicos, reduciendo el crecimiento y la producción de muchos cultivos.","fb_desc":"Los suelos sódicos son aquellos que presentan un alto porcentaje de sodio intercambiable, actualmente este tipo de suelo se han vuelto un problema limitante en la producción de cultivos, con los efectos del cambio climático, el mal uso de las aguas de riego y fertilizantes, este problema incrementa año tras año. Los suelos con un alto contenido de sodio representan un problema para el crecimiento de las plantas al verse afectados diversos procesos fisiológicos, reduciendo el crecimiento y la producción de muchos cultivos.","thumb":"\/assets\/images\/articulos\/categoria1\/4suelos\/art729-suelos-sodicos\/Suelos.jpg","fb_thumb":"\/assets\/images\/articulos\/categoria1\/4suelos\/art729-suelos-sodicos\/posrtada-nota-suelos.jpg","category":7,"related":"","keywords":"Suelos, Sodio, Sódicos, sales, deficiencia","pdfLink":"Articulos\/Suelos\/40. Suelos sodicos.pdf","text":"\r\n
\r\n
Autores: Equipo Editorial INTAGRI<\/em><\/span><\/p>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n
\r\n
Los suelos sódicos son aquellos que presentan un alto porcentaje de sodio intercambiable, actualmente este tipo de suelo se han vuelto un problema limitante en la producción de cultivos, con los efectos del cambio climático, el mal uso de las aguas de riego y fertilizantes, este problema incrementa año tras año. Los suelos con un alto contenido de sodio representan un problema para el crecimiento de las plantas al verse afectados diversos procesos fisiológicos, reduciendo el crecimiento y la producción de muchos cultivos.<\/span><\/p>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n
\r\n
Origen de la Sodicidad <\/strong><\/span><\/h4>\r\n\r\nLa presencia de sales en el suelo tiene que ver con los procesos naturales de mineralización o meteorización de las rocas durante la formación de los suelos. Las sales solubles en zonas secas también se pueden deber a la existencia de antiguos depósitos secundarios, donde antes existían lagos. Estas sales acumuladas en los sedimentos contribuyen a la concentración de sales en los suelos formados a partir de estos minerales.<\/span><\/p>\r\n\r\nExiste una sal responsable de la aparición de la sodicidad en los suelos, el carbonato de sodio, Na2<\/sub>CO3<\/sub>. El cual lleva a cabo la siguiente reacción de intercambio, con lo cual el PSI (Porcentaje de sodio intercambiable) del suelo aumenta:<\/span><\/p>\r\n\r\nNa2<\/sub>CO3<\/sub> + CaX<\/em> CaCo3<\/sub> + 2NaX<\/em><\/strong><\/span><\/p>\r\n\r\nX<\/em> representa al catión en un estado intercambiable. La reacción es prácticamente irreversible, debido a que el CaCO3<\/sub> es una sal casi insoluble.<\/span><\/p>\r\n\r\n\r\n\tEl carbonato de sodio se forma en los suelos a través de reacciones de intemperismo, o por reducción biológica del sulfato de sodio, principalmente.<\/span><\/li>\r\n\tEl sodio intercambiable provoca la dispersión o floculación de las arcillas, las cuales tapan los poros del suelo. Esto disminuye drásticamente el flujo del agua y la conductividad hidráulica.<\/span><\/li>\r\n<\/ul>\r\n\r\nPorcentaje de Sodio Intercambiable (PSI)<\/strong><\/span><\/h4>\r\n\r\nSi el sodio representa un alto porcentaje entre los cationes intercambiables, se presentan cambios en la estructura del suelo que afectan a la permeabilidad; el suelo entonces se considera sódico.<\/span><\/p>\r\n<\/div>\r\n\r\n\r\n
\r\n\t\r\n\t\t\r\n\t\t\t\r\n\t\t\tFigura 1: Suelos afectados por altos niveles de salinidad.<\/strong><\/span><\/p>\r\n\r\n\t\t\tFuente: Intagri.<\/strong><\/span><\/p>\r\n\t\t\t<\/td>\r\n\t\t<\/tr>\r\n\t<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n
\r\n
\r\n
Con base en el PSI<\/em> y los cambios que se presentan en los suelos y su efecto en el desarrollo vegetal, los suelos se clasifican en:<\/span><\/p>\r\n\r\n\r\n\tNo sódicos<\/strong>: PSI<\/em> < 7. No se ve afectado el rendimiento de los cultivos agrícolas.<\/span><\/li>\r\n\tLigeramente sódicos<\/strong>: PSI<\/em> 7 – 15. El rendimiento puede reducirse en suelos muy arcillosos.<\/span><\/li>\r\n\tMedianamente sódicos<\/strong>: PSI<\/em> 15 – 20. El rendimiento se reduce en la mayoría de los suelos.<\/span><\/li>\r\n\tFuertemente sódicos<\/strong>: PSI<\/em> 20 – 30. Los rendimientos ya no son redituables.<\/span><\/li>\r\n\tExtremadamente sódicos<\/strong>: PSI<\/em> > 30. No hay desarrollo de los cultivos agrícolas.<\/span><\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n
<\/div>\r\n\r\n
\r\n
\r\n\t\r\n\t\t\r\n\t\t\t\r\n\t\t\tFigura 2: El sodio intercambiable provoca la dispersión o floculación de las arcillas, las cuales tapan los poros del suelo. Esto disminuye drásticamente el flujo del agua y la conductividad hidráulica.<\/strong><\/span><\/p>\r\n\r\n\t\t\tFuente: Intagri.<\/strong><\/span><\/p>\r\n\t\t\t<\/td>\r\n\t\t<\/tr>\r\n\t<\/tbody>\r\n<\/table>\r\n<\/div>\r\n\r\n <\/div>\r\n<\/div>\r\n\r\n
\r\n
\r\n
Efectos de la sodicidad de las plantas <\/strong><\/span><\/h4>\r\n\r\n\r\n\tDesfloculación de las partículas del suelo provoca pérdida de la conductividad hidráulica del suelo.<\/span><\/li>\r\n\tAnaerobiosis.<\/span><\/li>\r\n\tAlto pH.<\/span><\/li>\r\n\t