완효성 비료 분시방법에 따른 두물차의 수량 및 품질

Abstract

A field experiment was conducted to evaluate effect by split-application of slow-release fertilizer on the tea plant. The yield of the 2nd harvested tea leaves was not different to the slow-release fertilizer of two time split manuring had been doing S데. or mar. compared with the traditional manuring had been doing four time split manuring, but that of the slow-release fertilizer to one time split manuring in Sep. had decreased 12.5±1.5%. In case of the nd harvested leave, the contents of chemical components related to quality such as total nitrogen, total amino acid were somewhat higher in the slow-release fertilizer (two time split manuring) than in the traditional manuring, but those of tannin, and carreine were low, and those of chlorophyll, vitamin C, free sugar and theanine were not different to out of treatmnets. In scoring test, appearance and quality of green tea were more excellence in the two time split manuring compared with one time split manufing of slow-release fertilizer and with the traditional manuring (four time split manuring). Therefore, I thought that use of slow-release fertilizer be increased yield and quality of tea leaves, and improved efficiency nature of nitrogen, phosphate and potassium out of soil fertilizer components