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为提高麦茬复种大豆的单产水平,1980—1981年选用早熟高产生态型品种实行窄行密植栽培,配合相应的早播种、早间借、早追肥、早浇水,以促为主,促控结合的综合技术措施,亩产300—369斤。1981年秋季召开了现场经验观摩会,目前正在组织示范和大面积推广。一、选用早熟高产品种一定的生态条件,要求一定的生态型品种。山西中部平川麦茬复种夏大豆栽培制度有两种:一是麦豆两年三熟;二是麦豆一年两熟。前者选择早熟类型品种(生育期90天),后者选择特早熟类型品种(生育期80—85天)。麦豆两年三熟制,高水肥地选用
In order to improve the yield of wheat stubble multiplication soybean, the selection of early-maturity and high yield ecotypes in 1980-1981 was carried out in narrow row and close planting, with the corresponding early seeding, early morning borrowing, early topdressing, early watering, promoting and combining The comprehensive technical measures, 300-369 kg per mu. The autumn of 1981 held a site experience tour, is currently organizing demonstration and large-scale promotion. First, the selection of precocious high-yield varieties of certain ecological conditions, requiring a certain amount of ecological varieties. There are two kinds of cultivation systems of summer wheat in Pingchuan stubble planting in central Shanxi. The first is wheat three years ripening in two years; the second is wheat ripening twice in one year. The former selects the precocious varieties (growth period of 90 days), the latter selects the special precocious varieties (growth period of 80-85 days). Three years of wheat malt two years, high water and fertilizer selection