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小麦早衰、冻害、倒伏一直是影响小麦生产的重要因素,能否争取小麦高产,抓好预防管理是关键,针对小麦存在的问题,根据不同原因,提出防治措施。一、小麦早衰1、发生原因(1)追肥数量减少。近年来因农资成本大幅上涨,造成大部分农户在一处施入底肥的基础上减少了追肥的数量,优质肥的施用比例下降,造成小麦后期营养不足,出现脱肥性早衰现象,降低产量。(2)持续高温和干热风危害,造成植株水分缺失,叶绿素下降,进而植株早衰,降低产量。
Wheat premature aging, frost damage and lodging have always been the important factors that affect the wheat production. Whether it can win the high yield of wheat and do a good job of prevention and management is the key point. According to the different problems, we put forward the control measures. First, wheat premature senility 1, causes (1) reduce the number of top dressing. In recent years, due to the substantial increase in the cost of agricultural resources, most farmers have reduced the amount of topdressing fertilizer on the basis of one base fertilizer, the proportion of high-quality fertilizer decreased, resulting in lack of nutrition in late wheat, . (2) continued high temperature and dry heat hazards, resulting in plant water loss, chlorophyll decreased, thereby premature plant decline and reduce production.