Nitrogen dynamics in Belgium and Cameroon soils using labelled nitrogen
| MSI99P0936 | |
| Bholah, M. A. Takoudjou, C. van Cleemput, O. Baert, L. | |
| Nitrogen dynamics in Belgium and Cameroon soils using labelled nitrogen | |
| Periodical article | |
| 1990 | |
| Medelingen van der Faculteit Landbouwwetenschappen, Rijksuniversiteit Gent | |
| 55(1): 11-16 | |
| En | |
| En | |
| Laboratory incubation studies with N-15 labelled urea conducted on representative soils of Belgium and Cameroon indicated that 70-85 percent of the fertilizer urea was hydrolysed within 2 to 4 days. The organic carbon content influenced the rate of hydrolysis. Nitrification of ammonium to nitrate was only noted in a Andosol of volcanic ash origin under the experimental conditions. N-15 data showed that in this soil 30 per cent of the applied N was found as nitrate after 30 days of incubation. Immobilized N accounted for 12-28 per cent of the applied N in the Belgian soils and 37 per cent in the Cameroon soils. The total recovery of fertilizer N added to the soil was between 96 per cent and 99 per cent indicating a loss of 1 to 4 per cent presumably due to ammonia volatilization. | |
| NITROGEN FERTILIZERS UREA HYDROLYSIS SOILS SOIL SCIENCE | |
| MAURITIUS | |
| Soil sciences | |
| 1992-05-19 | |
| En | |
| MSIRI, Réduit; Radioisotope Laboratory, Yaounde; Faculty of Agricultural Sciences, State University, Belgium | |
| LIB (Photocopy) | |
| CAT | |
| CHEM |