覆膜玉米氮肥不同用量试验初报  

Test of Different Amount of Nitrogen Fertilizer on Maize with Plastic Film Mulch

作　　者：倪风萍[1] 魏固宁[1] 宋秀玲[1] 倪万梅[1] 刘晓梅[1] 孙成军[1] 

机构地区：[1]固原市原州区农业技术推广服务中心,宁夏固原756000

出　　处：《内蒙古农业科技》2010年第6期41-41,61,共2页Inner Mongolia Agricultural Science and Technology

基　　金：农业部测土配方施肥项目

摘　　要：覆膜玉米是原州区干旱区及半干旱区农业增产、农民增收的主栽作物。其种植面积逐年扩大,现已发展到近1.07万hm2。通过对覆膜玉米施氮肥量试验,得出氮肥在覆膜玉米生产中起着极其重要的作用,但不是氮肥施用越多越好,而是在一定范围内随着氮肥施用量的增加产量也随之增加,当氮肥施用超过一定范围时,氮肥施用增加而产量却下降。试验结果表明,在原州区覆膜玉米生产中,在土壤中等肥力的地块,氮肥施用量以667m2施纯氮16kg增产效果最佳。Corn is coated yuanzhou in arid and semiarid areas of agricultural production, increasing the income of farmers main crops.The planting area enlarged,and has developed to nearly 16 million acres.Through laminating corn nitrogen fertilizer quantity test,draw in corn production in coated plays a very important role, but not more nitrogen,but in a certain range with nitrogen rates increase yield and increase,When nitrogen than certain scope,nitrogen increased yield instead.The test results, yuanzhou in the production of corn,laminating moderate fertility soil of plot,in nitrogen on ShiChun 666.7 square meters kg increase nitrogen and best effect.

关 键 词：覆膜玉米 氮肥 施肥量 

分 类 号：S513[农业科学—作物学]