玉米施用氮磷化肥的后效研究  

Studies on the Aftereffects of Application of Nitrogen and Phosphate Chemical Fertilizers to Corn

作　　者：边秀芝[1] 任军[1] 刘慧涛[1] 阎孝贡[1] 

机构地区：[1]吉林省农业科学院农业环境与资源研究中心,吉林公主岭136100

出　　处：《吉林农业科学》2005年第4期33-36,共4页Journal of　Jilin Agricultural Sciences

摘　　要：通过两年盆栽和4年的定位试验,研究了氮磷化肥施用后的残留后效。结果表明,合理施用氮磷化肥具有明显的后效,不但促进了翌年玉米植株的营养生长并提高了单产,而且增加了土壤速效氮和速效磷的含量,培肥了地力。Studies on the residual aftereffect of application of nitrogen and phosphate chemical fertilizers to corn were carried out by experiment with pot culture for 2 years and location fertilizing experiment for 4 years. The results showed that when nitrogen and phosphate chemical fertilizers were rationally applied, both of them had remarkable aftereffects. They not only promoted vigorous growth of corn plant in next year and boosted crop yield per unit area, but also increased the content quick-acting N and P in soil and improved the soil fertility.

关 键 词：玉米 氮磷化肥 后效 

分 类 号：S513.062[农业科学—作物学]