Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico

Introduction. Maize (Zea mays L.) production in La Frailesca region, Mexico, is limited by sandy soils, low in potassium (K), and with acidic arable layers and subsoils. There is information on the management of lime but not on amendments that could be used for subsoil acidity — such as gypsum — no...

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Autores principales:	Armando Tasistro, Robertony Camas-Gómez, Ivan Ortiz-Monasterio
Formato:	article
Lenguaje:	ES
Publicado:	Universidad de Costa Rica 2021
Materias:	soil calcium dolomitic lime soil pH soil potassium Agriculture S
Acceso en línea:	https://doaj.org/article/4ed5c2ca541941a2a18a487a4732fcf4
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spelling	oai:doaj.org-article:4ed5c2ca541941a2a18a487a4732fcf42021-12-01T01:34:35ZGypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico10.15517/am.v33i1.461731021-74442215-3608https://doaj.org/article/4ed5c2ca541941a2a18a487a4732fcf42021-11-01T00:00:00Zhttps://revistas.ucr.ac.cr/index.php/agromeso/article/view/46173https://doaj.org/toc/1021-7444https://doaj.org/toc/2215-3608 Introduction. Maize (Zea mays L.) production in La Frailesca region, Mexico, is limited by sandy soils, low in potassium (K), and with acidic arable layers and subsoils. There is information on the management of lime but not on amendments that could be used for subsoil acidity — such as gypsum — nor on the interactions between amendments for soil acidity and K fertilization. Objective. To evaluate the effects of K and gypsum on maize and on previously limed soils. Materials and methods. The evaluations were conducted in farmers’ fields in La Frailesca region, Chiapas (Mexico) in 2016 and 2017. Four gypsum rates (0, 1.25, 2.5 and 5 t ha-1) and four K rates (0, 60, 90, and 120 kg ha-1 as K2O) were factorially combined in a randomized block design, with three replicates. In both years, before the beginning of the experiments, dolomitic lime was applied to the experimental area following standard practices. Responses of crop yield, soil exchangeable K, Ca, Mg, and Al, and soil pH were obtained. Results. Maize yields increased with gypsum (stabilizing at 1.25-3.0 t ha-1), and K (stabilizing at 70-120 kg ha-1 of K2O) applications. In soils, K application increased exchangeable K content, while gypsum increased exchangeable Ca content and pH, and decreased exchangeable Al content. Liming increased pHCa and exchangeable Ca and Mg contents, and lowered the exchangeable Al content in the top 7.5 cm of soil. Conclusion. Soils with exchangeable K (≤0.3 cmolc kg-1) were responsive to K fertilization. The positive effects on yields from gypsum were probably linked to a greater Ca supply in the top 7.5 cm. These results are encouraging about the benefits of the combined application of dolomitic lime, gypsum, and K, but longer evaluations are needed to properly determine the effects of gypsum on subsoil acidity. Armando TasistroRobertony Camas-GómezIvan Ortiz-MonasterioUniversidad de Costa Ricaarticlesoil calciumdolomitic limesoil pHsoil potassiumAgricultureSESAgronomía Mesoamericana, Vol 33, Iss 1 (2021)
institution	DOAJ
collection	DOAJ
language	ES
topic	soil calcium dolomitic lime soil pH soil potassium Agriculture S
spellingShingle	soil calcium dolomitic lime soil pH soil potassium Agriculture S Armando Tasistro Robertony Camas-Gómez Ivan Ortiz-Monasterio Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico
description	Introduction. Maize (Zea mays L.) production in La Frailesca region, Mexico, is limited by sandy soils, low in potassium (K), and with acidic arable layers and subsoils. There is information on the management of lime but not on amendments that could be used for subsoil acidity — such as gypsum — nor on the interactions between amendments for soil acidity and K fertilization. Objective. To evaluate the effects of K and gypsum on maize and on previously limed soils. Materials and methods. The evaluations were conducted in farmers’ fields in La Frailesca region, Chiapas (Mexico) in 2016 and 2017. Four gypsum rates (0, 1.25, 2.5 and 5 t ha-1) and four K rates (0, 60, 90, and 120 kg ha-1 as K2O) were factorially combined in a randomized block design, with three replicates. In both years, before the beginning of the experiments, dolomitic lime was applied to the experimental area following standard practices. Responses of crop yield, soil exchangeable K, Ca, Mg, and Al, and soil pH were obtained. Results. Maize yields increased with gypsum (stabilizing at 1.25-3.0 t ha-1), and K (stabilizing at 70-120 kg ha-1 of K2O) applications. In soils, K application increased exchangeable K content, while gypsum increased exchangeable Ca content and pH, and decreased exchangeable Al content. Liming increased pHCa and exchangeable Ca and Mg contents, and lowered the exchangeable Al content in the top 7.5 cm of soil. Conclusion. Soils with exchangeable K (≤0.3 cmolc kg-1) were responsive to K fertilization. The positive effects on yields from gypsum were probably linked to a greater Ca supply in the top 7.5 cm. These results are encouraging about the benefits of the combined application of dolomitic lime, gypsum, and K, but longer evaluations are needed to properly determine the effects of gypsum on subsoil acidity.
format	article
author	Armando Tasistro Robertony Camas-Gómez Ivan Ortiz-Monasterio
author_facet	Armando Tasistro Robertony Camas-Gómez Ivan Ortiz-Monasterio
author_sort	Armando Tasistro
title	Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico
title_short	Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico
title_full	Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico
title_fullStr	Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico
title_full_unstemmed	Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico
title_sort	gypsum and potassium application to acid soils for maize (zea mays l.) production in la frailesca, chiapas, mexico
publisher	Universidad de Costa Rica
publishDate	2021
url	https://doaj.org/article/4ed5c2ca541941a2a18a487a4732fcf4
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Gypsum and potassium application to acid soils for maize (Zea mays L.) production in La Frailesca, Chiapas, Mexico

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