稀土元素对植物的许多生理功能有着积极的影响,是植物的有益元素.目前我国每年有数以吨计的稀土农肥施用于田间,增产和品质改善而获益上千万元以上.研究稀土元素的细胞分布及其对植物生理效应的影响对我们更加科学合理地使用稀土元素具有重要意义.本文以稀土元素La为例,着重研究它对大豆幼苗根部矿质元素Ca和 K的影响,特别是对细胞分布的影响.
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