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小麦开花以后,植株的生长中心转向籽粒。延长功能叶片的功能期,延长根系寿命,防止早衰,促进籽粒增重,是此期田间管理的主攻方向。 1.浇水。抽穗开花期是小麦一生中耗水量最多的时期,每亩日耗水达4立方以上,缺水会严重影响开花受精和籽粒的形成。这时土壤含水量应维持田间最大持水量的70—80％。灌浆期是籽粒干物质积累的主要时期,此时容易受高温、低湿和热风的侵袭,叶片蒸腾强度大,消耗水分多,如水分不足,就会降低灌浆强度,形成早衰。这时土壤水分应稳定在70％左右,以地皮不干为准,应小水勤浇。麦黄水要因地制宜,地壮肥多、有贪青苗头的高产田,可以不浇,而一般麦田应浇麦黄水。
After the flowering of wheat, the plant’s growth center turns to the grain. Extending the functional period of functional leaves, extending root life, preventing premature aging and promoting grain weight gain are the main directions of field management in this period. Watering Flowering stage is the peak period of wheat water consumption, water consumption per mu up to 4 cubic meters, water will seriously affect the flowering and fertilization and grain formation. At this time, the soil water content should maintain 70-80% of the maximum water holding capacity in the field. Grain filling stage is the main period of grain dry matter accumulation, at this time vulnerable to high temperature, low humidity and hot air invasion, leaf transpiration intensity, consume more water, such as lack of water, it will reduce the grouting strength, the formation of premature aging. At this time the soil moisture should be stable at about 70%, to the ground quit, subject to small water pouring. Wheat yellow water according to local conditions, to strong Zhuangfei, there are greedy high-yielding fields, you can not pour, and general wheat fields should be poured wheat water.