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氮、磷、钾是小麦生长所必需的大量元素。它不仅是对小麦生长中、后期产生影响,在小麦三叶期前对根系、茎叶等生物性状亦有促进作用。过去诸多研究认为小麦三叶期前基本不从土壤吸收营养,主要利用胚乳养分。本文通过对4个小麦品种底施不同种类肥料及不同种类肥料配合的观察分析,认为三叶期前胚乳养分和土壤养分同等重要,并且不同的肥料组合对三叶期幼苗生物效应明显不同。
Nitrogen, phosphorus and potassium are a large number of elements necessary for the growth of wheat. It not only affects the growth of wheat in the late stage, but also promotes the root traits, stems and leaves and other biological traits before the wheat three-leaf stage. In the past, many researches concluded that wheat basically did not absorb nutrients from the soil before the trefoil, and mainly used endosperm nutrients. In this paper, by observing and analyzing the combination of different kinds of fertilizers and different kinds of fertilizers, the endosperm nutrients and soil nutrients were considered as important before the four-leaf stage, and the biological effects of different fertilizer combinations on the three-leaf stage seedlings were significantly different.