不同玉米品种吸钾能力的研究

Study on the Ability of Potassium Absorption for Corn Varieties

通过耗竭试验用供钾水平很低的沙土对不同玉米品种吸钾能力进行了研究。结果表明 ,不同基因型玉米品种在低钾土壤上吸钾量的多少和钾素利用效率的大小有显著差异 ,不同基因型玉米品种吸收土壤中不同形态钾的比例各不相同。通过幼苗耗竭试验筛选和判定吸钾能力强的玉米基因型 ,用其吸钾量的多少比钾利用效率的大小直接、优越和科学 ,不同基因型玉米品种吸收土壤矿物钾的多少和比例也是判定其吸钾能力强弱的重要标准。

The ability of potassium quantity absorbed on low potassium soil for different genotype maize was studied through cexhaustion experiment. The results showed that the quantity absorbing and using efficiency of potassium were notably different for differ genotype maize on low potassium soil, percentage of various form soil potassium absorbed was deferent for differ genotype maize. Filtering and judging different genotypes maize which absorbed potassium ability strongly by exhaustion experiment, their quantityof potassium absorbed was more direct, predominant and scientific than using efficiency of potassinm. It was an important standard that different genotypes maize absorbed mineral potassinm quantity and percentage.