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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (14): 229-231.

所属专题： 玉米

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

东北地区春玉米施肥现状调查

冯国忠 冯国忠,王志刚   

  • 收稿日期:2010-03-01 修回日期:2010-04-06 出版日期:2010-07-20 发布日期:2010-07-20
  • 基金资助:
    农业部现代玉米产业技术体系项目;公益性行业(农业)科研专项

PRESENT SITUATION OF FERTILIZER APPLICATION ON SPRING MAIZE IN NORTHEAST CHINA

  • Received:2010-03-01 Revised:2010-04-06 Online:2010-07-20 Published:2010-07-20

PDF (PC)

1260

摘要： 2008年通过对东北地区443个农户施肥调查资料的分析，了解到东北地区平均N、P2O5 、K2O的施用量分别为207 kg/hm2、100 kg/hm2、65kg/hm2，比例为1:0.5:0.3；施用高氮肥的农户所占的比例为33%，施用有机肥的农户只占总调查农户数量的6%；进行追肥的农户达到了65%；根据习惯、地力和技术手册来确定肥料用量的比例分别为69%、37%和3%。

关键词: 棉花, 棉花, PPT, 根系

Abstract: 433 farmer’s investigations in Northeast China were analyzed to understand present situation of fertilizer applying on spring maize. The results shown that, the average application rate of N, P2O5 and K2O was 207 kg/hm2, 100 kg/hm2 and 65 kg/hm2 respectively, the proportion of fertilizer (N:P2O5:K2O) on spring maize is 1:0.5:0.3;there are 33% of farmers who applied high nitrogen concentration fertilizer, but only 6% applied organic fertilizer, while those who applied top-dressing were 65%. 69% farmers determine fertilizer application based on their experience, 37% based on field production, and only 3% accord to technical manuals.