
梨园生草对土壤微量元素含量的影响及有效性评价
秦 秦1,2,宋 科1,杨建军1,3,乔红霞1,孙丽娟1,吕卫光1,薛永1*
梨园生草对土壤微量元素含量的影响及有效性评价
Effect of planting grasses on contents and availability of soil microelements in pear orchard
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