Maize response to potassium and amendments for soil acidity in La Frailesca, Chiapas, México

IPNI-2014-MEX-57

In 2015 we looked at the residual effects of lime and gypsum, and nutrients added in the previous year. One of the lime (L) x K experiments was abandoned because of poor site characteristics and errors in the calculation of lime amounts that resulted in under application. In the other L x K experiment, average grain yield in the untreated check was 1,200 kg/ha. Read more


Year of initiation:2014
Year of completion:2015
Map:

Interpretive Summary

2015

In 2015 we looked at the residual effects of lime and gypsum, and nutrients added in the previous year. One of the lime (L) x K experiments was abandoned because of poor site characteristics and errors in the calculation of lime amounts that resulted in under application. In the other L x K experiment, average grain yield in the untreated check was 1,200 kg/ha.

2014

One of the major soil degradative disorders affecting the La Frailesca region in Chiapas is soil acidity. Although this problem has long been recognized, its management has consisted only in applying around 2 t/ha of dolomitic limestone. Soil analyses done in 2013 showed that subsoils (15 to 30 cm deep) can be equally or more acidic than plow layers, and such condition is unlikely to be ameliorated by the recommended lime application.



Farmers and Government representatives were extremely enthusiastic about the results. Dr. Armando Tasistro (left) is standing next to Dr. Robertony Camas Gómez, researcher at INIFAP. Fifth person from left is Mr. Jorge Rojo Soberanes, Associate Director of the INIFAP Research Station in Chiapas.

Project Leader

Robertony Camas Gómez, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP)


Project Cooperators

Sinar Coutiño
Rigoberto Suchiapa
Raquel Padilla
Joaquín Altamirano
Efrain Gómez Solís
Aladino Nucamendi


IPNI Staff

Armando S Tasistro


Location

Americas \ Northern America \ MEX \ Chiapas \ Villaflores


Topics

soil acidity and liming

maize

Potassium (K)