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用3个株高类型不同的品种,采取大区对比法,研究大豆的种植方式和适宜密度。结果表明,窄行栽培比常规垄作显著增产,平均增产87%~178%,最高增产225%。平作窄行产量略高于大垄窄行,差异不明显;研究大豆高产高效配套技术宜选用大垄窄行种植方式;在抗倒耐密的前提下,选择植株相对较高的品种,矮秆品种不宜低于50cm。密植幅度高秆品种为22万~26万株/hm2,中秆品种26万~30万株/hm2,矮秆品种30万~35万株/hm2。
With three different types of plant height, take the regional contrast method to study the cultivation of soybean and the appropriate density. The results showed that narrow-row cultivation increased yield significantly compared with conventional ridge cultivation, with an average yield of 8.7-7.8% and a maximum yield of 22.5%. The output of narrow row of flat row was slightly higher than that of big row and narrow row of narrow row, the difference was insignificant; the research on high yield and high efficiency supporting technology of soybean should adopt the method of narrow row and wide ridge planting; under the premise of lodging resistance, Variety should not be less than 50cm. The planting density of high-stalk varieties is 220,000-260,000 plants / hm2, medium-stalk varieties 260,000-300,000 plants / hm2, and dwarf varieties 300,000-350,000 plants / hm2.