为调整作物布局,提高单位面积产量,我所从1974年起,利用冬闲田种植冬大豆,改双季稻为豆—稻—稻三熟。常年亩产200斤左右,1980年11.4亩,平均225斤,其中2.1亩达250.48斤。土壤肥力中等,晚稻收割后用拖拉机耙地,12月13日播种,品种“黑鼻青”,每亩5万苗。每亩基施土杂肥40担,沤过磷酸钙50斤,苗期施粪水30担,始花期追尿素5斤。4月4日收获,全生育期112天。本文着重阐述250斤水平的冬大豆生育动态和高产栽培技术。 In order to adjust the layout of crops and increase the yield per unit area, we started to use winter fallow field to plant winter soybean from 1974 and to change double-crop rice into beans, rice and rice. Perennial annual output of about 200 pounds, 11.4 acres in 1980, an average of 225 pounds, of which 2.1 acres reached 250.48 pounds. Medium soil fertility, harvested late rice harrow with a tractor, sowing December 13, breed “black nose green”, 50,000 mu per mu. 40 acres of miscellaneous fertilizer per mu basis Shi Tu, 沤 superphosphate 50 pounds, 30 seedlings Shi Dan fertilizer, the initial flowering of urea recovery of 5 pounds. April 4 harvest, the whole growth period of 112 days. This article focuses on 250 kg level of winter soybean growth dynamics and high-yielding cultivation techniques.