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近些年来,麦田杂草危害较为严重,影响了小麦的正常生长,造成了麦田的不同程度减产。尤其是野燕麦,由于其繁殖力强、发展速度快、化学除草难于控制,已成为麦田主要恶性杂草。为控制其危害,我们对野燕麦危害发生规律进行了调查并提出防治策略。一、野燕麦发生规律1.野燕麦种子具有“再休眠”的特性:第一年发芽率一般不超过50%,其余在以后3~4年中陆续出土,在土壤中保持8年还可以发芽出苗。
In recent years, the weeds in the wheat fields are harmed more seriously, affecting the normal growth of wheat and causing different degrees of yield reduction in wheat fields. Especially wild oats, because of its strong breeding capacity, rapid development, chemical weeding difficult to control, has become a major malignant weed in wheat fields. To control its harm, we conducted a survey on the occurrence of wild oats and put forward prevention and control strategies. First, the law of wild oats 1. Wild oat seeds have “sleep again” features: the first year germination rate is generally not more than 50%, the remaining 3 to 4 years after another unearthed in the soil for 8 years Can sprout emergence.