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2月下旬,天气渐暖,幼苗返青,秋播的大蒜逐渐进入返青期,下部开始生长不定根,蒜薹、蒜头开始分化,保证幼苗健壮生长,为蒜薹、蒜头的分化多积累营养物质,是夺取大蒜优质高产的关键。大蒜忌重茬,连年重茬种植使土壤中微量元素(铁、铜、锰、锌、镁、钼、硼、钴等)和钙相对缺乏,可直接导致大蒜植株,发育不良,严重的可使真菌、细菌侵入而产生多种病害,导致减产,甚至绝收。此期蒜农应抓好以下几个方面的管理:
In late February, the weather getting warmer, the seedlings turn green, autumn sowing garlic gradually into the greening period, the lower part of adventitious roots, garlic sprouts, garlic began to differentiate, to ensure the robust growth of seedlings for the garlic sprouts, garlic and more nutrients accumulation, is to seize the garlic The key to high quality and high yield. Avoid repeated cropping of garlic, continuous cropping so that the soil trace elements (iron, copper, manganese, zinc, magnesium, molybdenum, boron, cobalt, etc.) and the relative lack of calcium can directly lead to garlic plants, dysplasia, severe fungi, Bacteria invade and produce a variety of diseases, leading to reduced production, or even absolutely. This period garlic farmers should do a good job in the following aspects of management: