摘要
以两种不同生育期的毛豆品种为试材的研究结果表明，仅于播种前每公顷施２５ｋｇ尿素的启动氮，不能满足毛豆生长及丰产的要求。在毛豆的开花期或种子形成初期，每公顷再追施５０ｋｇ尿素，两个毛豆品种都获得了最高的干物质产量和饱荚产量，对早熟品种效果更佳。在播种前或开花前期，施用过多的氮肥。
A field experiment which consists two vegetable soyhean genotypes was conducted. The results showed that a starter N of urea 25kg/hm 2 was insufficient for maximizing plant growth and yield only before sowing. Urea top dressing of 50kg/hm 2 at flowering stage or seed formation stage, both varieties obtained highest biomass and yield, the effect to early ripening varieties was more significant. Too much N application before flowering had no significant effect on marketable pod yield.
出处
《湖北农业科学》
1996年第6期34-36,共3页
Hubei Agricultural Sciences
基金
国家人事部留学回国人员基金
关键词
毛豆
氮肥
干物质积累
产量
vegetable soybean, N management, dry matter accumulation, yield
