摘要
[目的]为研究氮肥、磷肥、钾肥对夏玉米产量和经济效益的影响和测土配方施肥提供依据.[方法]在河南省鹤壁市利用“3414”试验设计,布置夏玉米氮、磷、钾肥料效应试验.[结果]氮的缺乏对夏玉米产量影响最大,其次为磷,最后为钾.[结论]施肥量推荐类型:夏玉米目标产量＞ 10 500 kg/hm2,氮磷钾配比用量18∶8∶6;夏玉米目标产量9 000 ～ 10 500 kg/hm2,氮磷钾配比用量为16∶6∶4;夏玉米目标产量9 000 kg/hm2以下,氮磷钾配比用量为14∶4∶2.
Abstract
[Objective] The research aimed to provide the basis for the study of the influence of nitrogen,phosphorus and potassium fertilizer on summer corn yield and economic benefit and soil testing and fertilizer.[Method] In Hebi City,Henan Province,"3414" experiment design was used to arrange the fertilizer effect experiment of nitrogen,phosphorus and potassium.[Result] N loss had the greatest influence on summer corn yield,followed by phosphorus,finally to potassium.[Conclusion] Fertilizer recommendation types were as follows:when summer corn production target was ＞ 10 500 kg/hm2,N,P,K ratio was 18∶ 8∶ 6; when summer corn production target was 9 000-10 500 kg/hm2,N,P,K ratio was 16∶6∶4; When summer corn production target was 9 000 kg/h m2,N,P,K ratio was 14∶4∶2.
国家科技期刊平台
NSTL
维普
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