Nitrogen losses by volatilization in a corn crop with two tillage systems in the Argentine Pampa
| Autor: | M. Rimolo, M. I. Saubidet, J. Utsumi, R. M. Palma |
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| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | Communications in Soil Science and Plant Analysis. 29:2865-2879 |
| ISSN: | 1532-2416 0010-3624 |
| Popis: | Ammonia volatilization from soils is a complex process generally associated with surface applied nitrogen (N) fertilizer. The effect of conventional tillage and no tillage on NH3 volatilization was evaluated on cultivated corn (Zea maize L.) field in Pampa Humeda, Argentina. The objectives of this study were a) to determine the amount of N loss by volatilization (NH3) from urea fertilized soils under two different tillage systems (conventional and no tillage) and two different fertilizer application methods (surface and incorporated application) and b) to relate volatilization losses with environmental factors and biochemical and microbiological properties. This experiment was conducted on a Vertic Argiudoll with a silty clay loam texture in the Argentine Pampa. The site has been in natural grassland for 8 years prior was planted to corn. Following the fertilizer application for conventional tillage and no tillage systems, the daily volatilization loss of NH3 on the fertilized plots was highest d... |
| Databáze: | OpenAIRE |
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