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保护地(塑料大棚等)栽培韭菜,常因湿度高而发生灰霉病,我们常用灌水、排湿等简单方法就能有效的防治,而不需借助农药。具体做法是:一、巧灌水在扣棚前,结合追施尿素(15公斤/亩)时,灌一次大水(淹灌)。以后只在第三刀韭菜收割前头3天根据苗情灌水一次即可,其余时间再旱也不浇水。所谓根据苗情,就是根据苗的长势好坏决定浇水多少,一般长势越好的浇水越多,反之则少。二、及时排湿当扣棚后、韭菜出齐后、每天揭草苫后,如果棚内呈现雾气腾腾时,应立即放风排湿。
Protected areas (plastic greenhouses, etc.) cultivation of chives, often due to high humidity and gray mold, we often use irrigation, wetting and other simple methods can effectively prevent and control, without the use of pesticides. The specific approach is: First, clever irrigation in front of the buckle shed, combined with topdressing urea (15 kg / mu), a flood (flooded irrigation). After only the first three leeks in the first three days of harvest according to Miao irrigation once, the rest of the time and then drought is not watering. The so-called under the Miao situation, that is, according to the growth of seedlings decide how much water, generally grow better watering more, and vice versa less. Second, timely wet When the deduction shed, chives Qi Qi, the day after the lacquers, if the shed appears misty, should immediately vent the wind and wet.