长期以来,由于我县复种大豆都是当地农家品种,生育期长,受秋季光热条件的限制,施肥促进了植株的营养生长而延缓了生殖生长,最后遭受早霜危害,不能正常成熟导致减产,从而得出了复种大豆不宜施肥的错误结论。由于不施肥,植株得不到充分的养分,致使生产水平低下,单产长期徘徊在百斤左右。并且由于地力的过度消耗,对后作亦有严重影响群众也有“种黄豆不肥地”之说。从1983年开始,外引中熟品种威莱姆斯试种成功,我们以 For a long time, due to my county multiple crop soybean are local farmers breed, long period of growth, limited by the light and heat conditions in autumn, fertilization to promote vegetative growth and delay the reproductive growth of plants, and finally suffer from early frost damage, can not be normal maturity leading to reduced production, Which concluded that the wrong kind of compound fertilization soybean conclusion. Due to not fertilizing, the plants can not get enough nutrients, resulting in low production levels and long-term yield hovering around 100 kg. And because of the excessive consumption of the earth’s force, it also has a serious impact on the after-production. Since 1983, the introduction of medium-ripening varieties Weilamsi successful trial, we have