- Volume 47 Issue 5
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Responses of Capsicum annum (red pepper) to Fertilization Rates at Various Soil Moisture Conditions
- Jung, Kang-Ho ;
- Sonn, Yeon-Kyu ;
- Han, Kyoung-Hwa ;
- Zhang, Yong-Seon
- Received : 2014.09.23
- Accepted : 2014.09.28
- Published : 2014.10.31
This research was performed to test the hypothesis that the optimal fertilization rate for red pepper is changed by soil moisture condition. The experiment was conducted in rainfall-intercepted fields in Suwon, South Korea from 2002 to 2003. Soil was irrigated at 30, 50, or 80 kPa of soil moisture tension at 20 cm soil depth in 2002 and 30, 50, 100, or 150 kPa in 2003. For both years, fertilization was performed with four levels: none, 0.5, 1, and 1.5 times of the recommended N, P, and K fertilization rate. The irrigation amount was the greatest at 30 kPa irrigation while the water use efficiency increased with decrease of irrigation amount. The Irrigation amount was 508 mm at 30 kPa irrigation and ranged from 355 mm to 435 mm at 50 kPa irrigation. The maximum yield was found at 30 kPa irrigation and 1.5 times of the recommend fertilization rate in 2002 and 2003. The yield index of red pepper increased linearly with the fertilization rate at 30 kPa which implied that excess irrigation induced nutrient leaching and reduced nutrient availability. The maximum yield in 50 kPa and 80 kPa was found at the recommend fertilization rate while the yield decreased by fertilization at 100 kPa and 150 kPa irrigation. It implies that reduction of fertilization is the feasible practice to mitigate drought stress in fields without stable irrigation resources.
Red pepper;Soil moisture;Fertilization;Irrigation
- Atwell, B.J., P.E. Kriedeman, and C.G.N. Turnbull. 1999. Plants in action. Macmillan Education Australia Pty Ltd, Melbourne, Australia.
- Bhat, K.K. S. 1983. Nutrient inflows into apple roots. Plant and Soil. 71:371-380. https://doi.org/10.1007/BF02182678
- Jung, P.K., K.C. Eom, S.K. Ha, Y.S. Zhang, and S.O. Hur. 2009. Assessments of the nutrient losses in the sloped farm land. J. Kor. Soc. Soil Sci. Fer. 42:47-50.
- Clark, R.B. and V.C. Baligar. 2000. Acidic and alkaline soil constrains on plant mineral nutrition, p. 133-177. In: Wilkinson, R.E.(ed.). Plant environment interactions. 2nd ed., Marcel Dekker, Inc., New York, USA.
- Eom, K.C., E.U. Son, and S.H. Yoo. 1983. Fertilizer responses of Chinese cabbage to soil water potential. J. Kor. Soc. Soil Sci. Fer. 16:98-105.
- Hillel, D. 1998. Environmental Soil Physics: Fundamentals, Applications, and Environmental Considerations. Academic Press, CA, USA.
- Kreuzwieser, J. and A. Gessler. 2010. Global climate change and tree nutrition: influence of water availability. Tree Physiol. 30: 1221–1234. https://doi.org/10.1093/treephys/tpq055
- Lee, J.H. and C.J. Kim. 2011. Derivation of drought severityduration- frequency curves using drought frequency analysis. J. Kor. Water Res. Assoc. 44(11): 889-902. https://doi.org/10.3741/JKWRA.2011.44.11.889
- Lower, S.S. and C.M. Orians. 2002. Soil nutrients and water availability interact to influence willow growth and chemistry but not leaf beetle performance. Entomol. Exp. Appl. 107: 69-79.
- Metwally, S.Y. and A.G. Pollard. 1959. Effects of soil moisture conditions on the uptake of plant nutrients by barley and on the nutrient content of the soil solution. J. Sci. Food Agri. 10(11): 632-636.
- Munns, R. 2002. Comparative physiology of salt and water stress. Plant Cell Environ. 25:239-250. https://doi.org/10.1046/j.0016-8025.2001.00808.x
- National Institute of Agricultural Science and Technology (NIAST). 2000. Analysis method of soil and plant. NIAST, Suwon, Korea.
- Neilsen, G. H., P. B. Hoyt, and D. Neilsen. 1995. Soil changes associated with NP-fertigated and drip irrigated high-density apple orchards. Can. J. Soil. Sci. 75: 307-310. https://doi.org/10.4141/cjss95-044
- Rural Development Administration (RDA). 2014. Fertilizer recommendation for crop production. RDA, Suwon, Korea.
- Oh, D.S. and H.J. Cho. 2001. Establishment on Standard Irrigation Format for Upland Crops. In: Research Report 2000. National Institute of Agricultural Science and Technology, Suwon, Korea.
- Oh, S.J., Y.S. Zhang, S.K. Kim, P.K. Jung, and K.H. Jung. 2002. Study on nutrient loss in a sloped upland. In: Research Report 2001. National Institute of Agricultural Science and Technology, Suwon, Korea.
- Rural Development Administration (RDA). 2013. Red pepper, RDA, Suwon, Korea.
- Song, K.C, Y.S. Ahn, G.R. Cho, K.C. Eom, and S.H. Ryu. 1992. Determination of water demand of crops, p.97-101. In: Research Report 1991. Institute of Agricultural Technology, Rural Development Administration, Suwon, Korea.
- Steduto, P., T.C. Hsiao, E. Fereres, and D. Raes. 2012. Crop yield response to water, FAO, Rome, Italy.
Supported by : Rural Development Administration