当前位置: 首页 > 文章 > 土壤肥力和施氮量对小麦根系氮同化及子粒蛋白质含量的影响 植物营养与肥料学报 2003,9 (1) 39-44
Position: Home > Articles > Effects of nitrogen rates and soil fertility levels on root nitrogen absorption and assimilation and grain protein content of winter wheat Journal of Plant Nutrition and Fertilizers 2003,9 (1) 39-44

土壤肥力和施氮量对小麦根系氮同化及子粒蛋白质含量的影响

作  者:
王月福;于振文;李尚霞;余松烈
单  位:
山东农业大学农业部小麦栽培生理与遗传改良重点开放实验室
关键词:
小麦;根系;氮素同化;产量;蛋白质含量
摘  要:
采用田间土柱栽培的方法,研究了不同土壤肥力条件下施氮量对小麦根系氮素吸收、同化及子粒产量和蛋白质含量的影响。结果表明,小麦浅层根系衰老开始的时间比深层根系早,深层根系对小麦生育后期氮素吸收具有重要的作用。增施氮肥或土壤肥力高有利于小麦根系的生长发育,提高了根系活力和氮素同化关键酶的活性,延缓了根系的衰老,提高了小麦子粒产量和蛋白质含量。
译  名:
Effects of nitrogen rates and soil fertility levels on root nitrogen absorption and assimilation and grain protein content of winter wheat
作  者:
WANG Yuefu, YU Zhenwen, LI Shangxia, YU Songlie of Agriculture, Shandong Agric Univ, Taian 271018, China)
关键词:
winter wheat; root; nitrogen assimilation; grain yield; protein content
摘  要:
Soil column culture was used to investigate the effect of nitrogen rate on root nitrogen absorption, assimilation, grain yield, and protein content in different fertility soils The results showed that the upper roots senesced earlier than that deeper roots, which played an important role in nitrogen absorption during later development stage Increased nitrogen rate and high soil fertility promoted root growth and root activity, increased the activity of key enzymes in nitrogen assimilation As a result, high nitrogen rate and soil fertility delayed root senescence and increased grain yield and protein contentKey words: winter wheat; root; nitrogen assimilation; grain yield; protein content

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