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以不同栽培技术为切入点,用大豆半矮秆品种绥农22为试材,于2010年开展了不同栽培技术组合对大豆增产效果的研究。结果表明:苗期0～10 cm的土壤含水量,覆膜+垄沟深松、大垄密植+垄沟深松、平播密植、平播密植+化控+深松栽培技术分别较对照(“垄三”栽培)增加10.57%、3.17%、4.41%和2.62%;分枝期0～50 cm土壤含水量,覆膜+垄沟深松、“垄三”+化学调控、大垄密植+垄沟深松、平播密植栽培分别较对照增加8.13%、3.06%、4.73%和1.48%。大豆行间覆膜+垄沟深松与大垄密植+垄沟深松的耗水量少、土壤容重低,水分利用率高,并分别较对照极显著增产20.83%和11.96%。因此以上2项技术对大豆抗旱节水及增产效果明显,可以在黑龙江省干旱及半干旱地区推广应用。
With different cultivation techniques as the starting point, using soybean semi-dwarf varieties Suinong 22 as test material, carried out in 2010 to study the effect of different cultivation techniques on soybean yield. The results showed that soil water content at 0-10 cm in seedling stage, subsoiling + furrows and deep furrows, planting with big ridge and deep furrows, Ridge three "cultivation) increased by 10.57%, 3.17%, 4.41% and 2.62%; branching stage 0 ~ 50 cm soil moisture content, + Ditch deep loose, planted dense planting increased by 8.13%, 3.06%, 4.73% and 1.48% compared with the control. Soybean line between the film + deep furrows and furrows and loose ridges and furrows with a low water consumption, low soil bulk density, high water use efficiency, and significantly increased compared with the control significantly increased by 20.83% and 11.96%. Therefore, the above two technologies have obvious effect on drought-resistant and water-saving of soybean and yield increase, which can be popularized and applied in arid and semi-arid areas of Heilongjiang Province.