黄土高原不同地点小麦籽粒矿质元素的含量差异
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Differences of Main Nutrient Concentration in Wheat Grain Between Typical Locations of the Loess Plateau
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图4. 两个地点的旱地冬小麦铁、锰、铜、锌含量,吸收量和养分收获指数 |
Fig. 4. Winter wheat grain Fe, Mn, Cu and Zn contents, and their uptake and harvest indexes at two experimental sites |
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