云和雪梨生产基地土壤重金属和农药污染状况调查

Survey of the Pollution of Pesticide and Heavy Metal in the Soil in Yunhe Pear Production Base

通过对云和雪梨主要生产基地土壤中重金属、农药含量及pH值的检测分析 ,结果表明 :云和雪梨 4个生产基地土壤中重金属、农药含量及pH值的指标达到了国家标准 ,符合绿色食品生产的要求 ;土壤普遍偏酸性 ,应施用石灰进行调节 ,以更适应梨树的生长需要 ;个别基地因使用垃圾肥和轮纹净、福镁胂等农药 ,导致土壤的铅、砷含量大幅上升 ,应引起足够的重视。

The analysis of the content of the pesticide and heavy metal in the soil and the test of pH value of the soil showed that the content of the pesticide and heavy metal in the soil and pH value of the soil in four Yunhe pear production base met the requirements of national standards and the requirements of green food but the soil tended to be acidic. By using calcareousness to balance the pH value of the soil, it would be more suitable for pear tree growth.fffEnough emphasis should be put on the use of pesticides that often led to the sharp rise of heavy metals such as lead and arsenic in the soil.