Based on the experimentel treatment of applying nitrogenous fertilizer,phosphatic manure and nitrogenous,phosphatic manure mitture on low yield populus simoril field we have vesearched the affects of the tree growth and soil charactgeristis and primely reached the following results:Applying fertilizer has some cmproremert for populus simoril:groth and the forest soil mutriteonal situaltion bat it vesults in the tendency of accelerating soil moisture shortage on forest field.
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