实地氮肥管理对水稻产量和氮肥利用率的影响  

Effect of Site-specific Nitrogen Management on Rice Yield and Nitrogen Use Efficiency in Rice

作　　者：陈新红[1] 叶玉秀[1] 周青[1] 浦祝军[1] 

机构地区：[1]淮阴工学院生化学院,江苏淮安223003

出　　处：《西北农业学报》2011年第2期77-80,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：淮安市科技支撑计划(农业部分)(编号:SN0772);淮阴工学院学术带头人培养资助项目

摘　　要：以汕优63和淮稻9号为试材,设置不同氮肥管理模式,研究其对水稻产量和氮素利用率的影响。结果表明,与农民习惯法(FFP)相比,实地氮肥管理模式(SSNM)增产6.32%(汕优63)和3.3%(淮稻9号),SS-NM的氮肥产谷效益和农学利用率分别较FFP提高了35.68%(汕优63)、40.48%(淮稻9号)和172.61%(汕优63)、154.50%(淮稻9号),SSNM的氮素转运率显著高于FFP。说明在产量不降低甚至有所增加的前提下,实地氮肥管理可减少氮肥施用量,并较大幅度地提高水稻氮肥利用率。Taked Shanyou 63 and Huaidao 9 as materials,effects of site-specific nitrogen management（SSNM） on rice and nitrogen use efficiency in rice were studied.The results showed that SSNM increased the grain yield by 6.32% in Shanyou 63 and 3.30% in Huaidao 9,grain production efficiency of nitrogen increased by 35.68% in Shanyou 63 and 40.48 in Huaidao 9 respectively,and agronomic efficiency of nitrogen increased by 172.61% in Shanyou 63 and 154.50% in Huaidao 9 respectively,compared with those under farmer fertilizer practice（FFP）.Nitrogen transportation efficiency were significantly higher under SSNM than under FFP.The results suggested that,on the premise of keeping grain yield stable or even increasing,SSNM has a great potential in decreasing nitrogen fertilization and improving nitrogen use efficiency.

关 键 词：水稻 实地氮肥管理 产量 氮肥利用率 

分 类 号：S511[农业科学—作物学]