Rate of Atmospheric Nitrogen Fixation in Temporary Pastures

Authors

  • Carmen Dragomir aculty of Animal Sciences and Biotechnologies, Calea Aradului, nr. 119, Timişoara
  • Nicoleta Dragomir S.C. COMISION DIC SRL , Dumbrăviţa, str. Al.Petöfi, nr. 52, Timiş, Romania
  • Ioan Peț Faculty of Animal Sciences and Biotechnologies, Calea Aradului, nr. 119, Timişoara, Romania
  • Constantina Chiper Grass Research-Development Station Timişoara, Calea Urseni, nr. 32, Timişoara, Romania

Keywords:

amount of fixed nitrogen remained in soil, mean fixation rate, nitrogen fixation, pasture of Medicago sativa + Dactylis glomerata

Abstract

This work 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 kg Nfixed/day/ha, in the inoculated variant.

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Published

2023-10-03