With Dong Ling Bai , through the methods of field experiment、chemical analysis and biological statistics ,the effects of applying N、P、K、Zn fertilizer on formative law of yield and the absorption of N、P、K and nutrient quality were researched.The resualts were as follwings: (1) During the period of the growth ,the relations of the concentration and the amount of absorption and accumulation of N、P、K and applying fertilizer were analyzed,the ralations of the changing regulation of absorption rate a...
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