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【摘 要】
：
One factor of influencing crop growth is the effective elemental contents, especially trace elements, under the circumstances of the same concentrations of N, P
【机 构】
：
InstituteofHighEnergyPhysicsAcademiaSinicaBeijing100080China,InstituteofHighEnergyPhysicsAcademiaSin
【出 处】
：
核技术：英文版
【发表日期】
：
1992年3期
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