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大豆生长期间,如果田间管理不当,很容易形成落花落荚,不仅产量降低,而且对品质也有很大的影响。因此,在大豆生长的中期田问管理中应着重抓好以下六项措施: 1 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。667m~2追硫酸铵10kg,过磷酸钙15～20kg,草木灰100kg。如果再喷洒1％的尿素和2％的过磷酸钙混合液,增产效果更好。 2 喷施增产灵:对生长不良而早花的大豆,667m~2喷施30mg/kg的增产灵液60kg,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,
Soybean growth, if not properly managed in the field, it is easy to form falling peas, not only reduce the yield, but also have a great impact on the quality. Therefore, in the middle of soybean growth field management should focus on the following six measures: First flowering top dressing: topdressing soybean topdressing, the general increase of about 10%. When the flowering soybean plant reaches 10%. 667m ~ 2 ammonium sulfate 10kg, superphosphate 15 ~ 20kg, ash 100kg. If sprayed with 1% urea and 2% superphosphate mixture, the yield is better. 2 spraying Zeng Ling: poor growth and early flowering of soybean, 667m ~ 2 spray 30mg / kg of 30mg / kg production Ling Liquid 60kg, can promote plants to turn green, enhance photosynthesis, increase dry matter accumulation, speed up the transport of nutrients, Reduce the loss caused by malnutrition, falling pods,