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Study on the Fertility Characteristics of Soil Continuously Cultured with Vegetable

LIU Wen-li et al (Agriculture College of Yanbian University,Longjing, Jilin 133400)  
So as to improve the vegetable output and quality,all of 60 samples from the protected soil continuously grown with vegetables for years,adjacent to the show-terra soil and the cultivated land were collected.The nutrients in the soils of vegetable planting were analyzed.The results showed that the contents of organic matter,total N,total P,total K and alkali-hydrolysable N,available P,available K and pH value in the cultivated land of vegetable planting were obviously higher than others.
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