An experiment was conducted to determine the effects of application of various levels of GML （ground magnesium limestone） for sweet corn production on two Ultisols, viz.： Bungor and Rengam series soil. The treatmen...An experiment was conducted to determine the effects of application of various levels of GML （ground magnesium limestone） for sweet corn production on two Ultisols, viz.： Bungor and Rengam series soil. The treatments consisted of six levels of GML 0, 0.5, 1.0,2.0,4.0 and 8.0 Mg·ML·ha^-1 incorporated into the top 15 cm, a control which received no GML and no fertilizer. Two crops of sweet corn were planted with a crop of groundnut in a sequence of corn-groundnut-corn. Results indicated that application of 4.0 Mg·GML·ha^-1 and 2.0 Mg·GML·ha^-1 on Bungor and Rengan series soil respectively gave the highest yields in terms of saleable cob number. Soil analysis showed that application of 4.0 and 2.0 Mg·ha^-1 to Bungor and Rengam series soils respectively reduced Al saturation in both soils to 2.0% and increased soil pH to 5.7 and 4.8, respectively.展开更多
文摘An experiment was conducted to determine the effects of application of various levels of GML （ground magnesium limestone） for sweet corn production on two Ultisols, viz.： Bungor and Rengam series soil. The treatments consisted of six levels of GML 0, 0.5, 1.0,2.0,4.0 and 8.0 Mg·ML·ha^-1 incorporated into the top 15 cm, a control which received no GML and no fertilizer. Two crops of sweet corn were planted with a crop of groundnut in a sequence of corn-groundnut-corn. Results indicated that application of 4.0 Mg·GML·ha^-1 and 2.0 Mg·GML·ha^-1 on Bungor and Rengan series soil respectively gave the highest yields in terms of saleable cob number. Soil analysis showed that application of 4.0 and 2.0 Mg·ha^-1 to Bungor and Rengam series soils respectively reduced Al saturation in both soils to 2.0% and increased soil pH to 5.7 and 4.8, respectively.
