北方农业学报 ›› 2014, Vol. ›› Issue (3): 51-51.

• 土壤肥料研究与应用 • 上一篇    下一篇

喷灌条件下玉米氮磷钾肥肥效的研究

段玉[1] 张君[1] 妥德宝[1] 李焕春[1] 赵沛义[1] 孙涛[2]   

  1. [1]内蒙古农牧业科学院资源环境与检测技术研究所,内蒙古呼和浩特010031 [2]内蒙古自治区农业广播电视学校,内蒙古呼和浩特010000
  • 出版日期:2014-06-20 发布日期:2014-06-20
  • 通讯作者: 段玉
  • 作者简介:段玉(1963-),男,内蒙古兴和人,研究员,主要从事植物营养与施肥技术研究.
  • 基金资助:
    国际植物营养研究所(IPNI)项目资助(BFDP-IMAR-2009-2012);水利部“十二五”重大科技推广计划项目(TG1202)

Study on NPK Fertilizer Efficiency on Sprinkler Irrigation Maize

DUAN Yu (Institute of Resources and Environment and Testing Technology Sciences,Hohhot 010031,China)   

  • Online:2014-06-20 Published:2014-06-20

摘要: 喷灌条件下在玉米上进行氮磷钾肥肥效3年试验,结果表明,氮肥效果大于磷肥效果,磷肥效果大于钾肥效果;玉米经济最佳施肥量为N-P22O5-K2O=15.2-6.4-4.9kg/667m2.氮、磷、钾肥的当季利用率分别为36.3%、18.6%和49.9%,每生产100kg玉米籽吸收N、P2、O5、K2O分别为2.08kg、0.69kg和2.49kg.

Abstract: To investigate the balanced applying NPK fertilizer on maize under sprinkling irrigation condition, the three years field experiments were carried out. The results showed that the maize yield was increased remarkble by applying fertilizer, N〉P〉K. The best economy fertilizer rate N-P2O5-K2O at 15.2-6.4-4.9kg/667m2for maize. The nutrient use efficiency of N,P2O5, K2O was 36.3%, 18.6% and 49.9% respectively. It was confirmed that was to produce 100 kg corn seed needed to absorb the N, PzO5 and K20 were 2.08 kg,0.69 kg and 0.69kg.

中图分类号: 

  • S513