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小麦从播种至成熟的各个生育阶段中,生长速度及对氮磷钾的吸收有很大的不同。尽管国内外已发表过不少有关小麦养分吸收、分配的研究报告,但因环境条件,耕作制度,栽培技术以及品种特性等方面的不同,小麦干物质积累和氮磷钾吸收分配过程仍有很大的差异。本文探求在杭州气候条件下,小麦生育期间的干物质积累和氮磷钾吸收分配规律,明确各生育期不同器官对这三种元素的需求,为合理施肥提供理论依据。
Wheat from sowing to maturity in all stages of growth, growth rate and the absorption of nitrogen, phosphorus and potassium are very different. Although there have been a lot of reports about nutrient absorption and distribution in wheat at home and abroad, there are still some problems in wheat dry matter accumulation and NPK absorption and distribution due to different environmental conditions, farming systems, cultivation techniques and variety characteristics. Big difference. This article explored the law of dry matter accumulation and NPK absorption and distribution during wheat growth in Hangzhou climatic conditions and clarified the demand of these three elements in different organs during each growth period to provide a theoretical basis for rational fertilization.