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小麦生育后期仍需相当数量的氮、磷、钾、锌、锰、铜、铁、钼等营养元素。由于小麦根系在开花后基本停止生长,这样可能出现就田间土壤整体而言,并不缺肥,但就小麦根系所处的局部环境而言,却出现营养匮乏现象。这时如能采取叶面喷施液体多元肥料的措施,可收到显著的增产效果,一般可增产10％～15％。 小麦抽穗后,叶面积达到最大限度,田间形成郁闭茂密湿润的稳定生态环境,加上温度高达20℃左右,成为多种病虫发生蔓延的最适宜环境,麦田成了虫的
A substantial amount of nitrogen, phosphorus, potassium, zinc, manganese, copper, iron, molybdenum, and other nutrients are still needed in the later stages of wheat growth. Since the root system of wheat basically stops growing after flowering, it may appear that the whole soil of the field is not deficient in fertilizers, but in terms of the local environment of the wheat root system, there is a phenomenon of nutritional deprivation. At this time, if it can adopt the measures of foliar spraying of liquid multivariate fertilizer, it can receive a significant increase in production, and generally can increase production by 10% to 15%. After wheat heading, the maximum leaf area is reached, and a stable ecological environment with dense and moist vegetation is formed in the field. With a temperature as high as about 20°C, it becomes the most suitable environment for the spread of various pests. Wheat fields become insects.