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低洼盐碱地上的小麦,头水能否适时适量灌好,是决定全苗和增产的关键。我场八队位于黄河边沿,地势低洼,土质粘重,地下水位高,含盐量在0.3～0.6％左右,种小麦往往由于灌水土壤渗透性差和盐碱为害,造成一半左右小麦死苗或坐苗,历年来小麦产量低而不稳,单产只有100余斤。我们认为主要原因是灌水方法、灌水时期和灌水浸泡时间的问题,带着这个急待解决的课题,我们做了以下试验。
Low-lying saline-alkali wheat, head water can be timely and proper irrigation, is the key to determining the whole plant and yield. My field eight teams located at the edge of the Yellow River, low lying, soil sticky, groundwater level is high, the salt content of about 0.3 ~ 0.6%, wheat is often due to poor soil permeability and saline-alkali irrigation, resulting in about half of dead wheat or sit Miao, wheat yield over the years low and unstable, yield only 100 kg. We think the main reason is the method of irrigation, irrigation and irrigation soaking time, with this urgent problem, we have done the following test.