The contents and variation of N,P and K in ramie's stems and leaves for different ramie ages,ramie season and growth stage were studied.The results showed that the contents of N,P in leaves was mostly higher than that in stems,while the content of K in stems was similar to that in leaves. There were higher contents of N and P in seedling stage and much higher content of K in middle and late growth stage.From the closing crop stage to the black foot stage the amount of nutrition absorbed by plants was the ...
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