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有人认为大豆残茬有毒性,会降低其后茬作物冬小麦的产量.美国普度大学的植物病理学家Scott Abney发现,种植在有大量残茬的大豆地上的冬小麦,减产高达29%.Abney说,这是因为豆茬中的化学物质会降低种子发芽率,推迟出苗,减少分蘖,还会阻碍植株发育.小麦播种前,将豆茬均匀地铺在地面上,
Some people believe that the stubble of soybean toxicity will reduce the yield of winter wheat following its success.University of Purdue’s plant pathologist Scott Abney found that planting large areas of stubble soybean on the ground, winter wheat, up to 29% .Abney said, This is because the chemical substances in the stubble will reduce the seed germination rate, postponed emergence, reduce tillering, but also hinder the plant development before the wheat planting, the stubble spread evenly on the ground,