Effect of Ground Magnesium Limestone for Sweet Corn Production on Two Ultisols  

作　　者：Adzemi Mat Arshad Sharifudin Hj Abdul Hamid 

机构地区：[1]Faculty of Agrotechnology and Food Science, University Malaysia Terengganu, Terengganu 21030, Malaysia [2]Department of Land Management, Faculty of Agriculture, University Putra Malaysia, Serdang 43400, Selangor, Malaysia

出　　处：《Journal of Environmental Science and Engineering(A)》2013年第3期176-182,共7页环境科学与工程（A）

摘　　要：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.

关 键 词：GML （Ground magnesium limestone） sweet corn ultisols. 

分 类 号：S513[农业科学—作物学] TQ172.41[化学工程—水泥工业]