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调查和研究了扬州市土壤中有效锌的含量及其分布状况。根据分析资料,全市约有90%的耕地表现出不同程度的缺锌现象,可分为潜在缺锌,中度缺锌和极度缺锌三个区域。施用有机肥料可以缓和土壤缺锌状况。
The contents and distribution of available zinc in soils of Yangzhou City were investigated and studied. According to the analysis data, about 90% of the cultivated land in the whole city shows different degrees of zinc deficiency and can be divided into three areas: potential zinc deficiency, moderate zinc deficiency and extreme zinc deficiency. Application of organic fertilizers can alleviate zinc deficiency in soil.