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富镧稀土对春小麦吸收氮磷素和产量的影响
EFFECT OF RARE EARTH WITH HIGH-GRADE La ON THE YIELD,UPTAKE OF NITROGEN AND PHOSPHORUS BY SPRING WHEAT
【摘要】 用盆栽方法进行富镧稀土拌种和叶面喷施春小麦试验。结果表明,富镧稀土对春小麦有促进生长发育的作用,增产幅度在6%~8%。同时促进春小麦对氮、磷素的吸收、利用,并减少土壤中氮素的损失。在施用方法上,叶面喷施比拌种的方法更好。
【Abstract】 The results from pot experiment showed that the rare earth with high-grade La increasedthe yield of spring wheat by 6%~8%,increased the uptake and utilization of nitrogen andphosphorus and decreased the loss of nitrogen from soil after sprayed on the leaves with 60~150 mg,kg-1 of La2O3 solution,It also showed that spraying the fertilizer was more effectivethan seed dressing.
【关键词】 富镧稀土;
春小麦;
15N;
32P;
【Key words】 Rare earth with-high grad La; spring wheat; 15N; 32P; trace technique;
【Key words】 Rare earth with-high grad La; spring wheat; 15N; 32P; trace technique;
- 【文献出处】 核农学报 , 编辑部邮箱 ,1994年01期
- 【分类号】S512.106.2
- 【被引频次】16
- 【下载频次】57