摘要
本文研究控释氮肥减量施用对宁夏中部风沙土玉米农艺性状及产量的影响。结果表明:一次性基施控释氮肥80%以上能够满足玉米全生育期氮素需求,而一次性基施控释氮肥70%以下,在玉米生长后期出现脱肥现象,且产量降低;一次性基施控释氮肥80%(施控释氮肥1 293 kg/hm^2)时,比全量施控释氮肥节省肥料成本910.5元/hm^2,为最佳施肥方案。
Effect of controlled-release nitrogen fertilizer on agronomic traits and yield of maize in sandy soil in middle Ningxia was studied. The results showed that more than 80% nitrogen treatment could meet the nitrogen requirement in maize growth period, while shortage of fertilizer and yield decreasing were caused by less than 70% treatment. Compared with full content of fertilizer application, the fertilizer rate of RCNF reached 80%（1 293 kg/hm^2）, the cost could be saved of910.5 yuan/hm^2, which could realize cost-saving and were deemed to the best fertilization scheme.
出处
《宁夏农林科技》
2017年第12期62-64,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
农业部测土配方施肥项目
关键词
玉米
控释氮肥
施肥量
Maize
Controlled-release nitrogen fertilizer
Fertilizer rate
