摘要
以鲁黄1号为试材,研究了不同密度、氮磷钾肥料配比及灌溉对鲁黄1号的产量和农艺性状的影响。结果表明:不同密度和肥水条件下,大豆产量存在显著差异,鲁黄1号适宜密度为20～30万株·hm-2,最佳密度为25万株·hm-2左右;不同灌水处理间花荚期灌水增产效果最好,鼓粒期灌水次之;氮磷钾配施、基肥和追肥相结合的增产效果好;花荚期灌水配合N75P112.5K112.5施肥配比产量最高,达到3 250.8 kg·hm-2。淮北地区鲁黄1号的建议施肥量为氮肥50～90 kg·hm-2,磷肥和钾肥70～120 kg·hm-2。
The aim of the experiment is to explore high-yield cultivation technique of soybean cv.Luhuang No.1 in Huaibei area.Six planting density from 1.05×105 to 3.3×105 plants per hectare,six fertilizer combination including varied ratio and amount of N,P,K,two irrigation time at flowering-podding and seed-filling of 300 m3·ha-1 water were adopted.Soybean yield varied significantly with treatments.The suitable planting density was 2.0-3.0×105 plants·ha-1 and optimized at 2.5×105 plants·ha-1.Irrigation at flowering-podding was better than seed-filling.The highest yield of 3 250.8 kg·ha-1 appeared in the treatment of irrigation at flowering-poding combined with feitilizer amount（kg·ha-1）of N 75,P 112.5 and K 112.5.The proposed fertilizer amount for soybean cv.Luhuang No.1 in Huaibei were 50-90 kg·ha-1nitrogen,70-120 kg·ha-1 phosphate and potash.
出处
《大豆科学》
CAS
CSCD
北大核心
2012年第5期753-756,共4页
Soybean Science
基金
国家火炬计划项目(2011GH021359)
关键词
夏大豆
密度
施肥
灌水
产量
Summer soybean
Density
Fertilizer
Irrigation
Yield
