지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
The effect of soil water content on the transformation potential of N compounds derived from hydrolysis of urea applied in a reclaimed tidal soils which was saline-sodic was observed to evaluate nitrification rates of urea. Soil samples were collected from Moonpo series at the newly reclaimed area in Saemanguem. For the transformation potential of N compounds from urea (46% N), newly reclaimed tidal soils (RS) were amended with urea at the rates of 0, 10, and 20 kg 10a<SUP>-1</SUP>. With leachate obtained from the incubated RS in a leaching tube at 25°C, urea hydrolysis and nitrification were measured for a total of 30days. The cumulative amounts of NO3<SUP>-</SUP>-N in each of the four soils treated with urea was linear with time of incubation. Results showed that increase in pH occurred with increasing application rate of urea and volumetric water content due to hydrolysis of urea. The total N in the RS was decreased with incubation time, indicating that rates of urea hydrolysis was influenced by soil moisture conditions. Also, the cumulative amount of nitrate in RS gradually increased with increase in time of incubation.
목차
Introduction
Theoretical
Materials and Methods
Results and Discussion
Summary
References
참고문헌 (22)
참고문헌 신청
Al Rashidi, R.K / 1990 / Nitrification and urea hydrolysis in amended calcareous saline soils / Arid Land Research and Management 4(4):243~252
Singha, B / 1986 / Studies on the leaching of urea in sodic soils / The J. of Agric. Sci 106:323~330
Benini, Stefano / 1999 / A new proposal for urease mechanism based on the crystal structures of the native and inhibited enzyme from Bacilus pasteurii / why urea hydrolysis costs two nickels 7:205~216
Bouldin, D.R / 1991 / Urea Transformations in Flooded Soil Columns II. Derivation of Model and Implications to Ammonia Volatilization
Bower, C.A / 1965 / Precipitation and solution of calcium carbonate in irrigation operations / Soil Sci. Soc. of Am. Proc 29:93~94
Singha, B / 1986 / Studies on the leaching of urea in sodic soils / The J. of Agric. Sci 106:323~330
Benini, Stefano / 1999 / A new proposal for urease mechanism based on the crystal structures of the native and inhibited enzyme from Bacilus pasteurii / why urea hydrolysis costs two nickels 7:205~216
Bouldin, D.R / 1991 / Urea Transformations in Flooded Soil Columns II. Derivation of Model and Implications to Ammonia Volatilization
Bower, C.A / 1965 / Precipitation and solution of calcium carbonate in irrigation operations / Soil Sci. Soc. of Am. Proc 29:93~94
이 논문의 저자 정보
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2014-521-000706073