摘要
于大豆花期叶面喷施氮磷钾矿质化肥、钼元素微肥、光呼吸抑制剂和植物生长调节剂,可促进花芽分化及结实器官的良好发育,增荚(0.4～2.8粒/株)、增粒(1.1～6.6粒/株)、增重(0.2～1.2克/粒),增产率达7.1%～21.0％,产出投入比达9以上,极有应用价值。喷施剂种类间增产率依次为磷酸二氢钾、多效唑、亚硫酸氢钠、钼酸铵、尿素。
Chemical fertilizer (N,P,K) microelement Mo, photorcspiration inhibitor and regulators could promote differentation of flower bud and the development of fruiting organs after spraying on the soybean leaves. These chemicals showed significant result for increasing pods 0.4-2.8 pods/plant; seeds 1.1-6.6 grain/plant; weight 0.2-1.2 g/100-grain. By reasons of these, the yield increased by 7.1%-21.0%. The ratio of output to input reached 9 or much more. It was valuable to apply in practice. The yield-increased rate of different foliar spray chemicals was in order of potassium phosphinate, paclobutrazol, sodium sulphite, ammonoum molybdate, urea.
出处
《贵州农业科学》
CAS
1993年第5期33-36,共4页
Guizhou Agricultural Sciences
基金
贵州省科学技术基金
关键词
大豆
多效唑
叶面
施肥
产量
soybean
foliar spray application
benefit of increasing yield
