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The utilization of soil and leaf diagnosis to determine the mineral nutrition of apple trees grown under different soil management


, : The utilization of soil and leaf diagnosis to determine the mineral nutrition of apple trees grown under different soil management. Vestnik Sel' skokhozyaistvennoi Nauki Kazakhstana 16(4): 78-83

The orchard soil in 3 localities was kept under (a) permanent sward with the soil around each tree cultivated, (b) permanent sward in every second interrow, (c) permanent sward with the grass cut and left as mulch, (d) clean cultivation and (e) permanent sward plus mineral fertilization. Soil and leaf N, P2O5 and K2O in each variant were determined and the results are discussed in relation to optimum fertilization rates and yields.

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