不同栽培模式对双季稻产量及氮肥利用率的影响

被引量 : 5次 | 上传用户：zhen3071

【摘要】

：

目前我国化肥消费总量占世界总用量的35%,中国稻田氮肥施用量高于世界平均水平75%,但水稻产量增加不明显。增肥不增产、养分利用率下降、土壤养分过量积累以及由此产生的一系列环境问题在农业生产中亟待解决。本研究于2009-2010年在武穴市大金镇大田条件下进行,通过调整基、蘖肥和穗肥的比例,增加钾肥用量,施用有机肥,运用实地氮肥管理(SSNM)来调控氮肥施用量和增加密度等措施得到高产高效的栽培模式。旨

【作者】

：

梁彩梅

【机构】

：

华中农业大学

【发表日期】

：

2011年06期

【关键词】

：

双季稻栽培模式产量氮肥利用率

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