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一、初花期追肥:大豆在初花期追肥,一般可增产10％左右。当大豆田间开花株数达到10％时,每亩追硫酸铵10公斤,过磷酸钙15～20公斤、草木灰100公斤。如果再喷洒1％的尿素和2％的过磷酸钙混合液,效果更好。二、喷施增产灵:对生长不良而早花的大豆,每亩喷施30ppm的增产灵液60公斤,可促进植株变绿,增强光合作用,增加干物质的积累,加快养分的运输,减少由营养不足而造成的落花落荚,从而起到增荚、增粒、增重的作用。
First, the first flowering Top dressing: topdressing soybean topdressing, the general increase of about 10%. When the number of flowering soybean plants reached 10%, 10 kg per acre ammonium sulfate, 15 to 20 kg of superphosphate, 100 kg of ash. If you spray 1% urea and 2% superphosphate mixture, the better. Second, spraying Zeng Ling: poor growth and early flowering of soybean, spraying 30ppm per acre yield Ling liquid 60 kilograms, can promote plants turn green, enhance photosynthesis, increase dry matter accumulation, speed up nutrient transport, reduce Caused by malnutrition fall flowers pod, which played by the increase pod, grain, weight gain role.