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3. 两个地点的旱地冬小麦籽粒钙、镁、硫含量,吸收量和养分收获指数 |
Fig. 3. Winter wheat grain Ca, Mg and S contents, their uptake and harvest indexes at two experimental sites |
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