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冬季冬小麦生长缓慢,部分小麦叶片出现发黄现象,原因可能是多种多样的,主要有以下几种情况:1.干旱引起小麦叶发黄这类小麦多发生在底墒不足,抢墒播种的地块。当小麦根系从土壤中吸收到的水分难以补偿消耗,其生长发育就会受到影响致使叶片变黄,严重时死亡。整个麦田发黄较一致,分蘖推迟,生长缓慢或停滞,新叶短小,根小而细。因此播种时应足墒播种。2.秸秆还田耕层浅玉米秸秆还田,可以起到改良土壤、培肥地力的作用,现在秸秆还田量
Winter winter wheat growth is slow, some yellow leaves appear wheat, the reasons may be varied, mainly in the following situations: 1. Wheat leaf yellowing caused by drought These kinds of wheat occur at the end of insufficient soil moisture, grab the soil moisture sowing Piece. When wheat roots absorb moisture from the soil to compensate for the consumption of its growth and development will be affected so that the leaves turn yellow, severe death. The yellowing of the whole wheat field is more consistent, the tillers are delayed, the growth is slow or stagnant, the new leaves are short and the roots are small and fine. Therefore sowing should be enough moisture sowing. Straw straw field of shallow corn stalks, can play a role in improving the soil, fertility, now straw