学术
潮土性水稻土氮肥后效试验研究
李双来[1] 胡诚[1] 乔艳[1] 刘国际[1] 万炎生[2] 苏章锋[2]
[1]湖北省农业科学院植保土肥研究所,武汉430070 [2]潜江市农业局,湖北潜江433100
摘 要:
研究了油—稻—稻种植模式下氮肥的后效应作用。结果表明,氮肥的施用对当季油菜生长的影响作用显著,油菜生长期间施用的氮肥对下季早稻的后效作用非常明显,但后效作用不长,对晚稻的生长已无促进作用。早稻生长期间施用的氮肥对下季的晚稻生长有一定的后效作用。因此,施用了氮肥的油菜田种植早稻可以减少氮肥的施用量;施用了氮肥的早稻田种植晚稻也可以适当减少氮肥的施用量。[著者文摘]
文章出处:
《湖北农业科学》-2007年46卷5期 -727-729页
栏目信息:
分 类 号:
文章编号:
0439-8114（2007）05-0727-03
Study on Residual Effect of Nitrogen in Flow Aquic Paddy Soil
LI Shuang-lai, HU Cheng, QIAO Yan, LIU Guo-ji, WAN Yan-sheng, SU Zhang-feng （1.Institute of Plant Protection and Soil Science, Huhei Academy of Agricultural Sciences, Wuhan 430064,China; 2.Agricuhural department of Qianjiang City,Qianjiang 433100, Huhei,China）
Abstract:
In order to study the residual effect of nitrogen in flow aquic paddy soil, a field experiment was carried out in planting mode of rape-early season rice-late season rice. The results showed that rape growth was significantly influenced by pplication of nitrogen fertilizer. The early-season rice growth was significantly influenced by aplication of nitrogen during rape growth,but residual effect of nitrogen during rape growth on late-season rice was not obvious, The late-season rice growth was influenced by application of nitrogen during early-season rice growth, Therefore,early-season rice could reduce application of nitrogen after planting rape and late-season rice could reduce application of nitrogen after planting early-season rice.[著者文摘]
Key words:
floul aquic paddy soil;nitrogen;residual effect
基金资助:
湖北省“十一五”科技攻关项目（2006AA201C15）,湖北省农业科技创新中心资助项目（2007-620-001-03）
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