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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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This research was performed to test the hypothesis that the optimal fertilization rate for lettuce is various with soil moisture conditions. The experiment was conducted under a rainfall-intercepted facility in Suwon, South Korea from 2002 to 2003. Soil was irrigated at 30, 50, or 80 kPa of soil moisture tension at 15 cm soil depth in 2002 spring and fall and 20, 30, 50, or 80 kPa in 2003 spring. Fertilization was performed with four levels in spring for both years: none, 0.5, 1.0, and 1.5 times of the recommended N, P, and K fertilization rate. The irrigation amount increased with decreased irrigation starting point as soil moisture tension. The maximum yield was found at the lowest soil moisture tension in spring while irrigation at 50 kPa resulted in the greatest yield in fall. The yield responses of lettuce to fertilization rates were various with soil moisture condition. In spring, maximum yield was found at 1.0 or 1.5 times of the recommended fertilization rate at 20, 30, and 50 kPa irrigation while 0.5 or 1.0 times of fertilization rate resulted in the maximum yield in fall. Especially for 80 kPa irrigation in 2003 spring, yield was decreased by fertilization. It suggested that the optimum fertilization rate for lettuce is affected by soil moisture condition and that lower fertilization rate should be suggested when soil is managed in drier condition.
목차
Introduction
Materials and Methods
Results
Discussion
References
참고문헌 (19)
참고문헌 신청
1. [학술지(정기간행물)] - Aggelides, S. / 1999 / Effects of soil water potential on the nitrate content and the yield of lettuce / Commun. Soil Sci. Plant Anal 30 : 235 ~ 243
2. [단행본] - Allen, R. G. / 1998 / FAO Irrigation and drainage paper No. 56: Crop evapotranspiration / FAO, Rome, Italy
3. [단행본] - Atwell, B. J. / 1999 / Plants in action. Macmillan Education Australia Pty Ltd, Melbourne / Australia
4. [단행본] - Cary, J. W. / 1981 / Irrigation scheduling for water and energy conservation in the 80’s / American Society of Agricultural Engineers. Madison, WI, U.S : 81 ~ 91
5. [학술지(정기간행물)] - Eom, K. C. / 1983 / Fertilizer responses of Chinese cabbage to soil water potential / J. Kor. Soc. Soil Sci. Fer 16 : 98 ~ 105
2. [단행본] - Allen, R. G. / 1998 / FAO Irrigation and drainage paper No. 56: Crop evapotranspiration / FAO, Rome, Italy
3. [단행본] - Atwell, B. J. / 1999 / Plants in action. Macmillan Education Australia Pty Ltd, Melbourne / Australia
4. [단행본] - Cary, J. W. / 1981 / Irrigation scheduling for water and energy conservation in the 80’s / American Society of Agricultural Engineers. Madison, WI, U.S : 81 ~ 91
5. [학술지(정기간행물)] - Eom, K. C. / 1983 / Fertilizer responses of Chinese cabbage to soil water potential / J. Kor. Soc. Soil Sci. Fer 16 : 98 ~ 105
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UCI(KEPA) : I410-ECN-0101-2016-521-001162773