摘要
以中油杂7819为试验材料,研究稻田免耕直播栽培措施下不同施氮水平和种植密度对其产量的影响。结果表明：不同施氮量和种植密度对油菜产量有较大影响;在鄂北地区,稻田免耕直播油菜氮肥水平为纯氮270kg·hm-2,密度45万~60万株·hm-2可以获得高产。
Rapeseed variety Zhongyouza 7819 was adopted to study the effect of different nitrogen fertillizer and planting densities on the seed yield of direct-seeded rape in no-tillage paddy filed. The results showed that the suitable nitrogen fertilizer treatment of rape cultivating by direct seeding in paddy field was 270 kg·hm-2. And the proper planting density was 0.45~0.6 million individuals·hm-2 in north of Hubei.
出处
《天津农业科学》
CAS
2012年第5期92-94,共3页
Tianjin Agricultural Sciences
关键词
中油杂7819
免耕
直播油菜
施氮水平
种植密度
产量
rapeseed variety Zhongyouza 7819
no-trillage
direct-seeded rape
nitrogen fertilizer
planting density
seed yield
