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本文通过对杨树叶子的营养分析,探讨不同季节、不同部位及不同施肥量叶部的氮、磷、钾的变化规律。为营造速生丰产林施肥提供了理论依据。
In this paper, nutrition analysis of poplar leaves to explore the different seasons, different parts and different fertilizers leaf nitrogen, phosphorus and potassium changes. Provide a theoretical basis for creating fast-growing high yield fertilization.