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哈尔滨地区,在宽行距情况下,密度和产量的关系,因品种不同而各异。早熟品种丰收11,棵矮单株生产潜力低,每平方米50～70株的较30株的增产11.7～12.8％,而中熟和中晚熟品种,每平方米则以25～30株为适宜。在相同密度条件下,缩小行距有很大增产潜力,增产的幅度是7.4～13.8％。缩小行距后,相对延长了株距,使个体获得良好生育环境,促进增产。穴播主要在肥水充足的高产栽培条件下,能通风透光,提高光能利用率,增产幅度为4～14.6％。通过合理密植和合理群体摆布,使个体达到良好生育,并保持优良的群体,因而达到稳产、高产。
Harbin, in the case of wide spacing, the relationship between density and yield, due to different varieties vary. The yield of early-maturing varieties is 11, the yield potential of short-dwarf plants is low, the yield of more than 30 plants per 50m2 is 11.7 ~ 12.8%, while that of medium-maturity and middle-late maturing varieties is 25-30 per m2 . In the same density conditions, narrowing the row has a great potential for yield increase, the yield is 7.4 ~ 13.8%. Narrow row spacing, the relative extension of the spacing, so that individuals get a good reproductive environment and promote production. Hole-sowing mainly in high-yielding fertile under high-yielding cultivation conditions, ventilation and light, improve light energy efficiency, increase rate of 4 ~ 14.6%. By reasonably planting dense and reasonable groups at the mercy of the individual to achieve good reproductive and maintain an excellent group, so as to achieve stable and high yield.