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通过多年的小区试验和高产示范,对小麦的千粒重进行了研究。结果表明:适期或适期早播、增施磷肥、地膜覆盖栽培,都能显著提高千粒重;氮肥、土壤水分有提高和降低千粒重的两重性,在籽粒形成和灌浆期,只要保持适宜的土壤水分和氮素养分,使麦株体内有机和无机营养协调,就能提高千粒重;干热风对小麦的危害,是多种因素综合影响的结果,只要麦田土壤水分充足,小麦根系吸水能够补充叶片蒸腾耗水,麦株体内水分保持平衡,就能大大减轻其危害程度,使千粒重下降的少甚至不下降。
Through years of plot experiments and high-yield demonstration, the thousand-grain weight of wheat has been studied. The results showed that: the suitable or suitable period of early sowing, application of phosphate fertilizer and plastic film mulching could significantly increase the 1000-grain weight; the duality of increasing nitrogen and soil water content and reducing the 1000-grain weight could maintain the proper soil moisture And nitrogen nutrition, wheat plant organic and inorganic nutrition coordination can improve the 1000-grain weight; dry hot wind damage to wheat is the result of a combination of many factors, as long as the wheat field soil moisture sufficient, wheat root absorption water can supplement leaf transpiration Water, wheat plant body to maintain a balance of water, it can greatly reduce the extent of the harm, so that 1000-grain weight decline with or without decline.