摘要
通过氮肥用量试验 ,探讨了杂交稻汕优 5 5 9在地膜旱管栽培条件下 ,不同氮肥施用量对群体发育、产量形成的影响 ,分析表明该试验条件下最适氮肥施用量为 2 5 1.4kg/hm2 纯氮 ,为大面积水稻地膜旱管栽培科学施肥 ,以肥调控群体结构提供了科学依据。
Different N-fertilizer supplying amount treatments in dry cultivation covered with plastics on shanyou 559,a kind of hybrid rice,were conducted to investigate the effect of N-fertilizer supplying amount on population quality and yield formation.Results showed:The most appropriate N supplying amount was 251.4 kg/hm 2. The result offered scientific basis for fertilizer supplying and fertilizer control of population in dry cultivation covered with plastics.
出处
《中国农学通报》
CSCD
2000年第3期14-16,共3页
Chinese Agricultural Science Bulletin
基金
徐州市农业重点科研项目
关键词
地膜旱管稻
氮肥用量
群体质量
产量形成
Dry cultivation rice covered with plastics\ N- fertilizer supplying amount\ Population quality\ Yield formation
