INVESTIGATION ON THE DISTRIBUTION OF SOILS DEFICIENT IN Mn AND APPLICATION OF Mn FERTILIZER IN SHAANXI
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Abstract:
Owing to difference in relief and climate between the north and south of the province,the distribution of the soils in Shannxi are different most of the soils are neutral and slightly alkaline in reaction but a part of slightly acid soils are distributed in south Shannxi.Previous experiments conducted in 1961-1980 by the authors had proved the effect of Mn fertilizezr on most of the soils in this province.The present paper deals with the gradation of available Mn in soil,reasonable application of Mn fertilizer in the soils of various districts of the province,the distribution regularity of Mn in soils and the conditions of applying Mn fertilizer.
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