节点文献

富钾植物籽粒苋(Amaranthus spp.)对土壤矿物钾的吸收利用研究

UPTAKE OF POTASSIUM IN SOIL AND MINERAL BY GRAIN AMARANTH (Amaranthus spp.)

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 周明涂书新孙锦荷郭智芬

【Author】 ZHOU Min1 TU Shu-xin 2 SUN Jin-he3 GUO Zhi-fen1(1 Center for Irradiation Experiment, Hubei Academy of Agricultural Sciences, Wuhan,Hubei, 430064; 2 College of Resources and Environment, Central China Agricultural University, Wuhan, Hubei, 430070;3 Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, Zhejiang, 310029)

【机构】 湖北省农业科学院辐照加工研究所华中农业大学资源与环境学院浙江大学原子核应用研究所湖北省农业科学院辐照加工研究所 湖北武汉430064湖北武汉430070杭州310029湖北武汉430064

【摘要】 运用土培、石英砂培、有机酸释钾实验及矿物X衍射分析研究了不同基因型籽粒苋(Amaranthusspp.)对土壤矿物钾的吸收利用及其机制。结果表明,籽粒苋能有效地利用土壤和云母(黑云母和金云母)中的钾;籽粒苋品种R104、CX4对钾的吸收量高于一般型品种(CX77);籽粒苋根系能引起云母矿物向蛭石转化;籽粒苋根系分泌物中的草酸比一般有机酸具有更高的释放矿物中钾素的能力。

【Abstract】 Potassium uptake and its mechanism from soil and minerals by various genotypes of grain amaranth (Amaranthus spp.) were studied by soil pot experiment, quartz cultivation experiment and batch mica-K release experiments by organic acids as well as mineral X-ray diffraction analysis. The results showed that grain amaranth could efficiently take up K from both soil and micas (biotite and phlogopite). Genotypes of R104 and CX-4 took up more K than CX-77. Roots of grain amaranth stimulated transformation of mica to vermiculite. The oxalic acid from the root exudates of grain amaranth was able to release greater K from K-bearing minerals than other common organic acids.

【基金】 国家自然科学基金(29777021);农业部核农学重点实验室(浙江大学)开放基金
  • 【文献出处】 核农学报 ,Acta Agriculturae Nucleatae Sinica , 编辑部邮箱 ,2005年04期
  • 【分类号】S519
  • 【被引频次】37
  • 【下载频次】300
节点文献中: 

本文链接的文献网络图示:

本文的引文网络