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제주차밭에서 관수조건이 차나무(Camellia sinensis L.) 생육 및 품질특성에 미치는 영향
송인관(In Kwan Song),양상호(Sang Ho Yang),김태균(Tae Guin Kim),송관정(Kwan Jeong Song) 한국차학회 2011 한국차학회지 Vol.17 No.2
The study was aimed with establishing an efficient management system for nutrition and soil water in tea plantation of Jeju, Korea. Effect of irrigation conditions with different soil water pressures (control, 10-30, 30-50, and 50-100 kPa) on tea shoot growth and quality and soil properities was evaluated. Tea shoot yield was higher at irrigated treatments than at control, however there was little difference among irrigated treatments. Total free amino acids and theanine contents at irrigation were higher, with the tendency of increase as irrigation was delayed, than those of control. On the contrary, fiber showed opposite tendency. Irrigation increased the content of K, Mg, Na, Zn, Cu, and Fe of inorganic elements compared with control, whereas decreased Mn content. NO3-N contents of soil and soil solution were affected by irrigation conditions.