Investigation and Analysis Nutrient Status of Red Fuji Apple Orchard Soil and Leaf in Yili Area

In order to study the difference of soil nutrient elements and leaf nutrition content characteristics between different orchards of Fuji apple with various soil textures,we investigated the soil fertility and leaf nutritional status in loam and sandy soil texture of fully productive age apple orchard in Gongliu County,which is located in the upstream Yili River Valley.Organic matters and nutrients of element(N,P,K, Ca,B,Mg)in 0-20,20-60cm depths of soil layer and mature leaves were measured.The results showed that the soil fertility levels in loam soil texture was suitable for the tree growth,organic matter content was on the low level,effective phosphorus content was on the moderate level,nitrogen and potassium content was in a state of relatively abundant.The leaf mineral element contents were all in optimum range.Loam orchard management should be focused on the application of the organic fertilizer.The soil fertility levels in sand soil texture orchards was totally on the low level,the content of organic matter,available nitrogen, phosphorus and potassium element were all in the range of shortage.The leaf nutrition diagnosis result showed that magnesium content was low,boron content was high,the contents of other elements were all in optimum range.It was inferred that low soil fertility may resulted from the texture of the soil,targeted fertilization method should be adopted in different growth stages based on the nutrient requirement of the trees.