Title: Effects of Different Application Ratios of P and K Fertilizer on Physiological Characteristics,Yield and Quality of Flue-cured Tobacco under Condition of Applying Equal N Fertilizer
Abstract: The effects of different application ratios of P and K fertilizer on the physiological property,economic characters,chemical composition,aroma content and smoking quality of flue-cured tobacco variety Jiyan No.9 were studied under the condition of applying the equal N fertilizer(75 kg/hm2 pure nitrogen).The results showed that with the increase of the ratio of P and K fertilizer,the leaf chlorophyll content,net photosynthetic rate,SOD and CAT activity,economic characters,and aroma content all increased first and then decreased,while the content of MDA appeared the opposite trend.The optimum ratio of N,P and K was 1∶1.5∶3,and it had the best effect on the improvement of the physiological property,yield and quality of flue-cured tobacco.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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