International Journal of Soil Science1816-4978xxxx-xxxxAcademic Journals Inc.10.3923/ijss.2008.11.19GhoneimAdel UenoH. EbidA. AsagiN. daragI. Abou El 1200831The fates of nitrogen-15 (15N)-labeled biogas
slurry (BS) and chemical fertilizer (CF) applied to soil with low fertility
cropped with rice were investigated. The 15N dilution method
was used to estimate N uptake and recovery; potted soil was labeled with
1.0 atom % excess [15N] ammonium chloride ([15N]NH4Cl).
Certain select soil characteristics were also measured in soil amended
with the slurry to explain N losses. The values of the % N derived by
fertilizer application to the plant exhibited significant differences
among different plant parts. N uptake from the CF applied to rice grain,
straw and the roots was significantly (p<0.05) higher than that from
BS, but the highest proportion of N uptake by rice was from the soil.
At harvest, an average of 6.2 and 13.2% of applied N remained in the soil
treated with the CF and BS, respectively. Fertilizer use efficiency calculated
by the 15N dilution method tended to be higher for CF than
BS. A significant amount of N fertilizer (average: 30%) was apparently
lost from the soil-plant system by ammonia (NH3) volatilization.
Following BS application, the pH increased by 1 to 1.2 units in the top
5 cm of the soil, resulting in high NH3 volatilization in the
first 2 days of the experiment. The NH3 volatilization accounted
for the decrease in soil ammonium-N (NH4+-N) content.]]>Asagi, N., H. Ueno and A. Ebid,20072171181Bremner, J.M.,19658813241345Bufogle, A., P.K. Bollich, R.J. Norman, J.L. Kovar , C. W. Lindau and R.F. Macchiavelli,199761832839Chantigny, M.H., P. Rochette and D.A. Angers,200181131137Chantigny, M.H., D.A. Angers, C. Pomar and T. Morvan,200415N-enriched feed to label pig excreta for N cycling studies.]]>844348Ebid, A., H. Ueno, A. Ghoneim and N. Asagi,200713C and 15N dual-labeled maize residues compost.]]>17583Fillery, I.R.P. and S. Recous,200115N Sources to Study Soil N Transformations.]]>2001pp: 167-194pp: 167-194Fried, M. and L.A. Dean,195273263272Ghoneim, A., H. Ueno and A. Ebid,2006Brassica campestris L.) growing soil fertilized with biogas slurry and chemical fertilizer using 15N isotope dilution method.]]>924262431Guindo, D., R.J. Norman and B.R. Wells,199458410415Jensen, B., P. Sorensen, I.K. Thomsen, E.S. Jensen and B.T. Christensen,199915N-labeled ruminant manure components to successively grown crops.]]>63416423Kirchmann, H.,199015N-labelled poultry manure.]]>4379385Motavalli, P.P., K.A. Kelling and J.C. Converse,198918180185Nishida, M., K. Tsuchiya and S. Yamamuro,200415N-labeled organic materials applied to transplanted rice in Northern Kyushu region of Japan.]]>50225232Nowak, P., R. Shepard and F. Madison,19981998pp: 1-32pp: 1-32Paul, J.W. and E.G. Beauchamp,199373253266Paul, J.W. and E.G. Beauchamp,199515N labeled (NH4)2SO4.]]>753542Rochette, P., M.H. Chantigny, D.A. Angers, N. Bertrand and D. Cote,200181515523Sorensen, P. and M. Amato,2002168195Sorensen, P., E.S. Jensen and N.E. Nielsen,199415N-labelled organic nitrogen in sheep manure applied to soils of different texture under field conditions.]]>1623947Stevenson, F.C., F.L. Walley and C. van Kessel,19986213271334Uenosono, S., M. Nagatomo, S. Takahashi, E. Kunieda and S. Yamamuro,200415N on paddy field rice.]]>75313319Sommer, S.G. and N.J. Hutchings,200115115