摘要
以鲜食春大豆辽鲜1号为材料,采用正交旋转组合设,布置田间参数试验,建立辽鲜1号鲜荚产量回归数学模型,研究了播种期、种植密度、氮肥用量对鲜荚产量的影响。结果表明,辽鲜1号的播种期为4月中旬;种植密度不低于30万株/hm2;追肥尿素用量不少于120 kg/hm2为宜。
The effects of sowing period,planting density and nitrogen fertilizer rate on yield of Liaoxian No.1 were studied by using orthogonal rotation combination,setting field parameters experiment and establishing regressive mathematical mode of fresh-pod yield of Liaoxian No.1.The results showed that the sowing period of Liaoxian No.1 is in the mid April;the planting density is not lower than 300 000 plants/hm2;the urea application rate is not lower than 120 kg/hm2.
出处
《湖南农业科学》
2010年第9期48-49,共2页
Hunan Agricultural Sciences
关键词
播种期
种植密度
氮肥用量
辽鲜1号
鲜荚产量
sowing period
planting density
nitrogen fertilizer rate
Liaoxian No.1
yield of fresh-pods
