2005•Guizhou nongye kexueRequires access
Effects of Different Fertilizers on Biological Yield and Active Ingredient Content of Blumea balsamifera
HE Yuan-nong, Ying Ding, Xian Fu-rong, Yang Lin, Pan Ju-hua
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Abstract
Application trials of 3 farm manures(manure, rapeseed cake,plat ash),3 single element chemical fertilizers(urea,calcium phosphate,potassinm chloride) and a composite fertilizer on Ai-na-xiang(Blumea balsamifera) were conducted at Libo county for two years,The results showed that the treatment of applying fertilizers got higher yield with stable efficacious ingredients contents than that of non-fertilization;applying multielements fertilizers increased both of yield and efficacious ingredients and more stable than that of applying single element fertilizer;the increase of biological yield mainly depended on nitrogen and the medical efficacious ingredients showed positive correlation with the applying amount of potassium fertilizer.