Effect of Soil Texture and Age on Soil Exchangeable Calcium and Magnesium in the Early Bearing Walnut Orchard
HUANG Minmin, ZHANG Qiang*, WANG Guoan, NING Wanjun
Journal of Agricultural Science and Technology . 2017, (8): 132 -137 .  DOI: 10.13304/j.nykjdb.2016.711

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