摘要
试验研究结果表明:高油玉米、高淀粉玉米和高蛋白玉米对氮磷钾的敏感顺序均为氮>钾>磷。在目前的肥料施用量及玉米和肥料价格情况下,高油玉米氮磷钾配施获得的经济效益为341元/hm2,磷钾配施的经济效益为120元/hm2,氮钾配施和氮磷配施的效益均为负值;高淀粉玉米施肥效益为负值;高蛋白玉米氮磷钾配施可获得609元/hm2的效益。氮磷配施、氮钾配施及磷钾配施的效益均为负值。氮磷钾配施对高蛋白玉米的增产效益最大,对高淀粉玉米的增产效益最小。
The experimental resuhs showed that the order of high oil, high starch and high protein maize response to N, P and K were all N 〉 K 〉 P. Under the condition of the fertilizer application rates and the price of maize and fertilizer at present, the combined application of N, P and K for high oil maize can get the benefit of 341 yuardha, the combined application of P and K for high-oil maize can get the benefit of 120 yuan/ha, the combined application of N and K as well as the combined application of N and P all got the negative benefit. The fertilization for high starch all got the negative benefit. The combined application of N, P and K for high protein maize can get the benefit of 609 yuan/ha, the combined application for the any two of N, P and K were all got the negative benefit. The combined application of N, P and K got the highest and the lowest benefit for high protein maize and for high starch respectively.
出处
《玉米科学》
CAS
CSCD
北大核心
2006年第6期131-133,共3页
Journal of Maize Sciences
基金
国家粮食丰产科技工程项目(2004BA520A09-4-2)
PPI-PPIC项目(Jilin200301)
关键词
优质玉米
营养
产量
效益
High quality maize
Application
Yield
Benefit
