大豆高产高效配套技术的研究 Ⅰ.种植方式与适宜密度

Suitable Technology for Effectual Yield and High Output in Soybean I. The Modes of Planttation and Density

摘要:

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8.7%~17.8%, 最高增产22.5%。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50 cm。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。

Abstract:

The modes of plantation and density in soybean were studied using three types cultivars in plant height by comparing of large plots. The results indicated as follow: The yields of soybean were increased 8.7%~17.8% in average level, the highest was 22.5% using cultivation of narrow rideges than normal ridges. the yields of soybean were not increased obviously using cultivation of narrow ridges on level than narrow on large ridge, but it was more convenient using narrow on large ridge than narrow on level. The narrow on large ridge was suitable mode for effectual yield and higher output in soybean. The cultivars of higher plants, which were lodging resistant and baring of higher density, should be selected, at least higher than 50 cm. The optimum density were 220000~260000 plants perhectare for cultivar of higher plant, 260000~300000 plants per hectare for cultivar of middle plant and 300000~350000 plants per hectare for short one.