Rate of Atmospheric Nitrogen Fixation in Temporary Pastures

Rate of Atmospheric Nitrogen Fixation in Temporary Pastures

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This work MAG-K-TAURINE presents the influence exerted by the bacterial inoculation of legumes and nitrogen-based fertilization of temporary pastures on the rate of atmospheric nitrogen fixation (BFN).The researches were carried out in an experimental display consisted of a bifactorial experience (A = bacterial inoculation; B = nitrogen doses), during a three-year period, by planting an association of Dactylis glomerata (60%) + Medicago sativa (40%).The estimated amount of BFN was determined with the method of nitrogen balance with a reference crop.The results achieved showed that, by inoculating the legume within the temporary pasture association, we may obtain an increase of the BFN rate from 2.66 kg/1% alfalfa to 3.

24 kg/1% alfalfa, respectively an estimated amount of 0.65 Pony Showman Halters kg Nfixed/day/ha, in the inoculated variant.