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根据茶树体内碳氮量的年变化规律及根系活性的年周期变化,提出适期施肥的生物学依据。研究了肥料种类对茶树物质代谢影响,提出了茶园选用化肥种类和适宜施用量的依据。并且用同位素示综技术探讨了深秋施肥对茶树光合作用及其同化产物的积累以及在春茶品质成分中再分配的影响,明确秋季肥培管理的重要性。
According to the annual variation of carbon and nitrogen in tea plant and the annual cycle of root activity, the biological basis of suitable fertilization was put forward. The effects of fertilizer types on the metabolism of tea plant were studied, and the basis for selection of fertilizer types and suitable application rate for tea plantation was put forward. The effects of late autumn fertilization on the photosynthesis and its assimilation of tea plant and its redistribution in the quality components of spring tea were discussed with isotopic enumeration. The importance of fertilizer management in autumn was clarified.