不同年龄早实核桃园土壤主要矿质元素含量变化研究
王永利1,李保国1,齐国辉1,郭素萍1,王秀玲2,何丽英1
河北农业大学学报 ›› 2009, Vol. 32 ›› Issue (2) : 25-33.
不同年龄早实核桃园土壤主要矿质元素含量变化研究
Variation of main mineral element contents in different soil layer at different ages of the early bearing walnut orchard
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