The efficient use of fertilizers depends very much on their proper placement, and the effects of fertilizer placement on the woody perennial plant tea (Camellia sinensis L.) are not clearly understood.

中文翻译：

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秋季深施氮肥提高春茶氮素利用率

肥料的有效利用很大程度上取决于其适当的施肥，施肥对多年生木本植物茶（Camellia sinensis L.）的影响尚不清楚。