摘要
为研究氮、磷、钾肥对早稻产量和经济效益的影响和测土配方施肥提供依据,在湖北省赤壁市利用"3414"试验设计布置了早稻氮、磷、钾肥料效应试验。结果表明,早稻施用磷肥效果最好,最高增产稻谷2 300 kg·hm-2,相应增产率达36.7%,纯增收入2 984.4元·hm-2;钾肥增产稻谷1 075 kg·hm-2,增产率为14.8%,纯增收入1 186.8元·hm-2;氮肥增产稻谷677 kg.hm-2,增产率为8.9%,纯增收入365.7元.hm-2。通过配置三元二次和一元二次肥效模型,结合试验实际情况,确定早稻N、P2O5和K2O的最高产量施用量分别为180.1、57.3和67.5 kg·hm-2,最佳经济施用量分别为108.5、55.4和59.1 kg·hm-2。
This paper studied the effect of nitrogen, phosphorus and potassium fertilization on early-season rice by the ＂3414＂ fertilizer experiment, which was conducted in Chibi city, Hubei province. The result showed that the effect of P fertilization on yield and economic benefit was the largest, the next was K, and N fertilization was the smallest. The highest increment of N, P and K were 677, 2300 and 1 075 kg·hm^-2, higher than control by 8.9, 36.7 and 14.8%, respectively. The net income of N, P and K were enhanced by 365.7, 2984.4 and 1 186.8 yuan·hm^-2, respectively. According to fertilizer effect, the highest yield would be reached when N, P205 and K20 application rate was 180.1,57.3 and 67.5 kg·hm^-2, and the highest profit would be reached when N,P2O5 and K2O application rate was 108.5, 55.4 and 59.1 kg·hm^-2, respectively.
出处
《湖北农业科学》
北大核心
2008年第11期1268-1271,共4页
Hubei Agricultural Sciences
基金
国家"十一五"科技支撑计划重点项目(2008BADA4B08)
国家测土配方施肥项目
关键词
早稻
“3414”肥效试验
施肥效果
推荐施肥量
early-season rice
＂3414＂ fertilizer experiment
fertilization effect
fertilizer recommendation
作者简介
王伟妮（1984-），女，山东潍坊人，在读硕士研究生，研究方向为现代施肥技术，（电话）13277081984（电子信箱）i_happy18@webmail．hzau．edu．cn；
通讯作者，鲁剑巍，（电子信箱）lujianwei@mail．hzau．edu．cn.
