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荞麦秸秆粉对植物发芽、生长发育有抑制作用 ,其抑制作物的强弱因植物的种类而异 ,对生菜和稗草的抑制作用强 ,对大豆和水稻的抑制作用弱。研究发现 ,荞麦秸秆粉可使稗草的发芽率降低 10 0 % ,生菜的发芽率降低6 6 5 %。大豆的发芽率虽没有降低 ,但侧根数减少 74 % ,根鲜重减少 4 4 %。水稻的发芽率降低 15 % ,根长缩短96 % ,幼苗高度降低 5 6 %。荞麦秸秆粉可使双子叶水田杂草发芽率降低 88%～ 91% ,使单子叶水田杂草发芽率降低76 %～ 89%。施过荞麦秸秆粉的水田不会对后作水稻的发芽和生长发育造成不利影响。
Buckwheat straw powder has inhibitory effect on plant germination and growth, and its inhibitory effect on crops varies with the plant species. It has strong inhibitory effect on lettuce and barnyardgrass, and weak inhibition on soybean and rice. The study found that buckwheat straw powder can reduce germination rate of barnyard grass 10%, lettuce germination rate decreased 6 6 5%. Although the germination rate of soybean did not decrease, the number of lateral roots decreased by 74% and the fresh weight decreased by 4 4%. Rice germination rate decreased by 15%, root length shortened by 96%, seedling height decreased by 56%. Buckwheat straw powder can reduce the germination rate of weeds in dicotyledonous paddy fields by 88% -91%, and decrease the germination rate of weeds by about 76% -89% in monocotyledonous paddy fields. The paddy field applied with buckwheat straw powder will not adversely affect the germination and growth of the post-crop rice.