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为切实加强大蒜起身期管理工作,河南省开封县农业局技术人员针对2014年大蒜的苗情特点,指导农户因地因苗制宜,分类管理。开封县农业技术人员深入全县大蒜主产区,对2014年的大蒜返青期生长情况进行了详细的调查,并针对生产中存在问题以及如何夺取大蒜高产、优质、高效、低残留,提出了具体的管理技术措施。1 存在问题大蒜叶片黄尖现象普遍。上部叶片和下部叶片的叶尖都有不同程度的黄尖现象。主要原因:一是大蒜退母期阶段性营养不足,特别是钾不足造成的黄尖现象;二是2013年12月下旬和2014年2月6~14日阶段性突然降温造成的冻害导致的叶尖黄化现象。
In order to effectively strengthen the garlic during the management of the period of opening up, Kaifeng County, Henan Bureau of Agriculture technical staff for the characteristics of the 2014 seedlings of garlic to guide farmers due to local conditions, classified management. Kaifeng County, agricultural technicians in-depth garlic in the main producing areas of the county, the growth of the garlic in 2014 back to the period of a detailed investigation of the situation and production for the problems and how to seize garlic high yield, high quality, high efficiency, low residue, made specific Management technical measures. 1 problems Garlic yellow tip phenomenon is widespread. The tip of the upper leaves and the lower leaves have different degrees of yellow tip. The main reasons are as follows: firstly, the step-by-step nutrition deficit of garlic during the withdrawal phase, especially the yellow-tip phenomenon caused by the shortage of potassium; the second is the leaf damage due to frost damage caused by the sudden temperature drop during late December 2013 and February 6-14, 2014 Sharp yellow phenomenon.