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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.4
- 수록면
- 194 - 199 (6page)
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초록· 키워드
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In an experiment conducted at the research field of the National Institute of Agricultural Science, we investigated the effects of mineral fertilizer and rice straw compost on exchangeable potassium and K balances, and rice grain yield under a rice single system. The treatments were no fertilization (No fert.), inorganic fertilization (N), inorganic fertilizer (N, P, K) plus rice straw compost at rates of 7.5, 15.0, 22.5, and 30.0 ton ㏊<SUP>-1</SUP> (NPKC7.5, NPKC15.0, NPKC22.5, and NPKC30.0, respectively). The inorganic fertilizers (N, P, K) were added with standard fertilizer application rate in which nitrogen (N), phosphate (P₂O₅), and potassium (K₂O) were applied with 75∼150 ㎏ ㏊<SUP>-1</SUP>, 70∼86 ㎏ ㏊<SUP>-1</SUP>, 75∼86 ㎏ ㏊<SUP>-1</SUP>, respectively. Exchangeable potassium for NPKC15.0 NPKC22.5, and NPK30.0 treatments was higher by 0.05~0.19 cmolc ㎏<SUP>-1</SUP> than thatof NPKC7.5 treatment. Increasing levels of rice straw compost resulted in an increase in the K balance from –19.9 ㎏ ㏊-1 yr<SUP>-1</SUP> (No fert.) to 41.9 ㎏ ㏊<SUP>-1</SUP> yr<SUP>-1</SUP> at NPKC22.5 treatment and 62.9 ㎏ ㏊<SUP>-1</SUP> at NPKC30.0 treatment.Continuous application of rice straw compost with NPK fertilizers affected significantly the rice grain yields. The result of the study imply that the application of more than 22.5 ton ㏊<SUP>-1</SUP> of rice straw compost with NPK fertilizers are recommended as the best fertilization practice for enhancement of crop production and K supplying power of soil in the continuous rice cropping system.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (25)
참고문헌 신청
Anderson, S., M. Simonsson, L. Mattsson, A.C. Edwards, and I. Öborn. 2007. Response of soil exchangeable and crop potassium concentrations to variable fertiliser and cropping regimes in long-term field experiments on different soil types. Soil Use Manage. 23:10-19.
Andrist-Rangel, Y., A.C. Edwards, S. Hillier, and I. Öborn. 2007. Long-term K dynamics in organic and conventional mixed cropping system as related to management and soil properties. Agri. Ecosyst. Environ. 122:413-426.
Bajwa, M.I. 1994. Soil potassium status, potash fertilizer usage and recommendations in Pakistan. Potash Review No. 3. International Potash Research Institute, Basel.
Brady, N.C., and R.R. Weil. 2007. The nature and properties of soils. 14th ed. Prentice Hall, New Jersey. United of America.
Blake, L., S. Mercik, M. Koerschens, K.W.T. Goulding, S. Stempen, A. Weigel, P.R. Poulton, and D.S. Powlson, 1999. Potassium content in soil, uptake in plants and the potassium balance in three European long-term field experiments. Plant Soil 216:1-14.
Andrist-Rangel, Y., A.C. Edwards, S. Hillier, and I. Öborn. 2007. Long-term K dynamics in organic and conventional mixed cropping system as related to management and soil properties. Agri. Ecosyst. Environ. 122:413-426.
Bajwa, M.I. 1994. Soil potassium status, potash fertilizer usage and recommendations in Pakistan. Potash Review No. 3. International Potash Research Institute, Basel.
Brady, N.C., and R.R. Weil. 2007. The nature and properties of soils. 14th ed. Prentice Hall, New Jersey. United of America.
Blake, L., S. Mercik, M. Koerschens, K.W.T. Goulding, S. Stempen, A. Weigel, P.R. Poulton, and D.S. Powlson, 1999. Potassium content in soil, uptake in plants and the potassium balance in three European long-term field experiments. Plant Soil 216:1-14.
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UCI(KEPA) : I410-ECN-0101-2016-521-002836127