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Effect of Soil Water Contents on Urea Hydrolysis and Nitrification in a Newly Reclaimed Tidal Soils
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Effect of Soil Water Contents on Urea Hydrolysis and Nitrification in a Newly Reclaimed Tidal Soils
Park, Mi-Suk; Kim, Hye-Jin; Chung, Doug-Young;
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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 . With leachate obtained from the incubated RS in a leaching tube at , urea hydrolysis and nitrification were measured for a total of 30days. The cumulative amounts of -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.
Urea hydrolysis;Reclaimed Tidal Soils;Nitrification;Nitrate;
 Cited by
Al-Rashidi, R.K. and M.M. Al-Jabri. 1990. Nitrification and urea hydrolysis in amended calcareous saline soils. Arid Land Research and Management. 4(4):243-252.

Singha, B. and M.S. Bajwaa. 1986. Studies on the leaching of urea in sodic soils. The J. of Agric. Sci. 106:323-330. crossref(new window)

Benini, Stefano, R. Wojciech, Rypniewski, S. Keith, S.M. Wilson, C. Stefano, and M. 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. crossref(new window)

Bouldin, D.R., C. Hongprayoon, C.W. Lindau, and W.H. Patrick. Jr. 1991. Urea Transformations in Flooded Soil Columns: II. Derivation of Model and Implications to Ammonia Volatilization.

Bower, C.A. and L.V. Wilcox. 1965. Precipitation and solution of calcium carbonate in irrigation operations. Soil Sci. Soc. of Am. Proc. 29:93-94. crossref(new window)

Bremner, J.M. 1965. Inorganic forms of nitrogen. p. 1179-1237. In C.A. Black et al. (ed.) Methods of soil analysis. Part 2. 1st ed. Agron. Monogr. 9. ASA, Madison, WI, USA.

Broadbent, F.E. and T. Nakashima. 1971. Effect of added salts on nitrogen ineralization on three California soils. Soil Sci. Soc. of Am. Proc. 37:396-398.

de Boer, W., H. Duyts, and H.J. Laanbroek. 1989. Urea stimulated autotrophic nitrification in suspensions of fertilized, acid heath soil. Soil Biol. Biochem. 21:349-354. crossref(new window)

Eno, C.F. and W.G. Blue. 1957. The comparative rate of nitrification of anhydrous ammonia, urea, and ammonium sulfate in sandy soils. Soil Sci. Soc. of Am. Proc. 21:392-396. crossref(new window)

Frankenberger, W.T. Jr and F.T. Bingham. 1982. Influence of salinity on soil enzyme activities. Soil Sci. Soc. Am. J. 46:1173-1177. crossref(new window)

Galstyn, Ash. 1960. Enzyme activity in saline soils. Doklady Akad Nauk Armyan SSR. 30:61-64.

Jackson, M.L. 1958. Soil chemical analysis. Prentice-Hall Inc., Englewood Clifts, NJ, USA.

Katyal, J.C., M.E. Carter, and P.L.G. Vlek. 1988. Nitrification activity in submerged soils and its relation to denitrification loss. Biol. Fertil. Soils. 7:16-22.

Kumar, V. and R.J. Wagenet. 1984. Urease activity and kinetics of urea transformation in soils. Soil Sci. 137:263-269. crossref(new window)

Magalhaes A.M.T., D.W. Nelson, and P.M. Chalk. 1987. Nitrogen transformations during hydrolysis and nitrification of urea. 1. Effect of soil properties and fertilizer placement. Fertilizer Res. 11:161-172. crossref(new window)

Martikainen, P.J. 1985. Nitrification in forest soil of different pH as affected by urea, ammonium sulphate and potassium sulphate. Soil Biol. Biochem. 17:363-367. crossref(new window)

McInnes, K.J. and I.R.P. Fillery. 1989. Modeling and field measurements of the effect of nitrogen source on nitrification. Soil Sci. Soc. of Am. J. 53:1264-1269. crossref(new window)

Pancholy, S.K. and E.L. Rice. 1973. Soil enzyme in relation to field succession: amylase, cellulase, invertase, dehydrogenase, and urease. Soil Sci. Soc. of Am. Proc. 37:47-50. crossref(new window)

Sommers, L.E., R.E. Wildung, and C.M. Gilmour. 1978. The effect of water potential on decomposition processes in soil. Agronomy Abstract. p. 146.

Tisdale, S.L., W.L. Nelson, and J.D. Beaton. 1985. Soil fertility and fertilizers. p. 161-168. Macmillan, NY, USA.

Zarate-Valdez, J.L., R.J. Zasoski, and A.E. Lauchli. 2006. Short-term effects of moisture content on soil solution ph and soil eh. Soil Sci. 171(5):423-431.

Vanessa, N.L. Wong, R.C. Dalal, and S.B. Richard. 2008. Salinity and sodicity effects on respiration and microbial biomass of soil. Biol. Fertil. Soils. 44(7):943-953. crossref(new window)