不同种类肥料混合底施对小麦三叶期幼苗生物效应的模糊相似优先比分析

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。

Blurred Similarity Precedence Value of Biological Effect on Wheat Seeding of Applying Different Kinds of Mixing Base Fertilizer

Nitrogen,Phosphors and Potassinm were macro-element for wheat growth. They had effects not only on the middle and late growth stages of wheat but also on the growth of some biological characters such as root,stem and so on be- fore three leaves stage of wheat. A lot of reaserch results indicated that wheat didn't absorb soil nutrients before three leaves stage,it mainly usestored nutrients in endosperm. Observing and analyzing of the application of different kinds of base fertilizer and of their difeerent combination led us to believe that the nutrients in wheat seed endosperm and in soil are both important to wheat growth before three leaves stage and different fertilizer combinations had different biological effect to wheat seeding at three leaves stage.