Publication Date
1989
Description
In the Humid Pampa, 10 millions of ha present intrazonal hydromorphic alkaline soils with low P assimilable content and cyclic floods and droughts. Gramineous native ranges utilized for extensive cattle raising with low productivity levels occupy 70 % of the area. The lack of adapted legume and grass genotypes and little information about grazing management makes it difficult to increase production through implanted pastures due to their low persistence (Darwich and Gonzalez, 1982). To modify this situation an interdisciplinary study of four forage mixtures integrated by promising germplasm for that conditions was carried out. This paper is part of that study, and its objective is to estimate biological nitrogen fixation of forage mixtures under two levels of use.
Citation
Refi, R O.; Navarro, C A.; and Escuder, C J., "Nitrogen Fixation in Mixed Pastures Under Two Grazing Intensities" (2025). IGC Proceedings (1989-2023). 3.
https://uknowledge.uky.edu/igc/1989/session2/3
Included in
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Nitrogen Fixation in Mixed Pastures Under Two Grazing Intensities
In the Humid Pampa, 10 millions of ha present intrazonal hydromorphic alkaline soils with low P assimilable content and cyclic floods and droughts. Gramineous native ranges utilized for extensive cattle raising with low productivity levels occupy 70 % of the area. The lack of adapted legume and grass genotypes and little information about grazing management makes it difficult to increase production through implanted pastures due to their low persistence (Darwich and Gonzalez, 1982). To modify this situation an interdisciplinary study of four forage mixtures integrated by promising germplasm for that conditions was carried out. This paper is part of that study, and its objective is to estimate biological nitrogen fixation of forage mixtures under two levels of use.
