Abstract
1) 우리나라 전국을 45개 지역으로 구분하여 최근 30년간의 기상자료 분석에 의한 9월~11월의 일평균 PET 는 <TEX>$2.17mm\;day^{-1}$</TEX> 이었다. 2) 토성별 유효토양수분보유량 (AWS)은 사양토 16.0%~미사질양토 24.7% 범위이었다. 3) 가을배추의 45개 지역별, 3개 토성 및 6개 순별, 총 810경우의 재배여건에 적합한 물 절약형 적정 관개 간격 및 1회관개량을 산정하였다. The water management of crop is different according to the area as well as climate condition and growth stage, however it is the most important and difficult problems for the farmers. The optimum irrigation manual those irrigation interval and amount of irrigation as water saving, are developed based on the lysimeter experiments carried out by the RDA for 11 years about PET (Potential Evapo-Transpiration), crop coefficient (Kc). The average PET (Potential Evapo-Transpiration) during 30 years of 45 regions for the autumn chinese cabbage cultivation was a <TEX>$2.17mm\;day^{-1}$</TEX>.
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