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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.12
- 수록면
- 641 - 647 (7page)
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초록· 키워드
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Monitoring of soil fertility by long-term application of fertilizers is necessary to improve the fertility of soil and the productivity of crop. The objective of this study was conducted to investigate the changes of exchangeable Mg by continuous application of fertilizers from 1969 to 2014. The treatments were no fertilization (No fert.) and fertilization (NPK, NPK+C, NPK+S, and NPK+CS). The concentration of exchangeable Mg in No fert., NPK+C, and NPK+S treatments tended to increase from 1965 to 1975, but decrease gradually from 1976 to 1987, and increase again after 1988. Based on these, the changes of exchangeable Mg were divided into period I (’69 ~’75), period II (’76~’87), and period III (’88~’14). Especially, exchangeable Mg decreased in the period II. This was presumed that a significant amount of Mg from topsoil were leached into subsoil by break of plow pan and some of subsoil was incorporated into topsoil according to change of plowing depth by replacement of tillage machinery. It could be possible that exchangeable Mg in NPK, NPK+S, and NPK+CS was accumulated in the depth of 15~20 cm. For the period III, exchangeable Mg in No fert., NPK, NPK+C, NPK+S, and NPK+CS treatments increased at rates of 0.013, 0.018, 0.015, 0.023, and 0.024 cmol<SUB>c</SUB> kg<SUP>-1</SUP>·yr<SUP>-1</SUP> respectively. Exchangeable Mg level in NPK+S was lower than the other treatments in the period I and period II, but higher than in the period III. This result was attributed to replacement of silicate fertilizer type from wollastonite (Mg 0.3%) to silicate fertilizer (Mg 3%). Also, exchangeable Mg level of No fert. treatment increased, which showed that Mg concentration of irrigated water had the greatest impact on Mg accumulation of soil. Recently, Mg level of irrigated water tended to increase, indicating that Mg concentration of water will affect greatly the concentration of exchangeable Mg of soil in the future. Like these, the changes of exchangeable Mg were greatly influenced by agricultural environment such as plowing depth, plow pan, content of fertilizer, and quality of irrigated water. Considering these agricultural environment, the proper management of soil is needed for the improvement of soil fertility and crop productivity.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (15)
참고문헌 신청
[단행본] - Albrecht, W.A. / 1975 / The Albrecht papers. Vol. 1: Foundation concepts / Acres USA, Kansas City
[학술지(정기간행물)] - Boivin P. / 2002 / Porcesses driving soil solution chemistry in a flooded rice-corpped vertisoil:analysis of long-term monitoring data / Geoderma 110 (1) : 87 ~ 107
[학술지(정기간행물)] - Jeong Y. G. / 1987 / Study on the influence of Ca and Mg saturation ratio of soil on the uptake of Ca, Mg, and K by rice plant / Korean J. Soil Sci. Fert 20 (2) : 115 ~ 121
[학술지(정기간행물)] - Kim I. H. / 1987 / Effects of long-term application of compost on physical properties of paddy soils / Res. Rept. RDA (P.M&U) 29 (1) : 54 ~ 59
[학술지(정기간행물)] - 김명숙 / 2015 / Changes of Chemical Characteristics of Soil Solution In Paddy Field from Fifty-Eight Years Fertilization Experiments / 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer) 48 (1) : 22 ~ 29
[학술지(정기간행물)] - Boivin P. / 2002 / Porcesses driving soil solution chemistry in a flooded rice-corpped vertisoil:analysis of long-term monitoring data / Geoderma 110 (1) : 87 ~ 107
[학술지(정기간행물)] - Jeong Y. G. / 1987 / Study on the influence of Ca and Mg saturation ratio of soil on the uptake of Ca, Mg, and K by rice plant / Korean J. Soil Sci. Fert 20 (2) : 115 ~ 121
[학술지(정기간행물)] - Kim I. H. / 1987 / Effects of long-term application of compost on physical properties of paddy soils / Res. Rept. RDA (P.M&U) 29 (1) : 54 ~ 59
[학술지(정기간행물)] - 김명숙 / 2015 / Changes of Chemical Characteristics of Soil Solution In Paddy Field from Fifty-Eight Years Fertilization Experiments / 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer) 48 (1) : 22 ~ 29
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UCI(KEPA) : I410-ECN-0101-2016-521-002207222