BIRDSFOOT TREFOIL’S CONTRIBUTION TO THE PROVISION OF TEMPORARY PASTURES WITH BIOLOGICALLY-FIXED NITROGEN, IN BANAT’S FIELD
Keywords:
biologically-fixed Nitrogen, birdsfoot trefoil, temporary pastureAbstract
Temporary pastures, with the presence of legume species within the floristic
structure, produce important amounts of biologically-fixed Nitrogen (BFN), which
partially is used in the increase of the forage biomass yield, and partially remains in
the soil for the next crops in the rotation. The results of the researches carried out
made evident birdsfoot trefoil’s contribution, cultivated in association with perennial
graminaceous, to the provision with biological Nitrogen of the temporary pastures.
Under such conditions, birdsfoot trefoil leads to the achievement of a BFN amount
of 70-96 kg/ha/year, and each percentage of participation leads to the achievement
of an average of 2.58 kg/ha/year biological Nitrogen,
References
Brophy L.S. et al., 1987 – Nitrogen transfer from forage legumes to grass in
a systematic planting design. Crop Sci., 27,753-758.
Dragomir N., Vintilescu C., Crîlov Al., 1992 – Cercetări privind
contribuŃia ghizdeiului (Lotus corniculatus L.) la sporirea producŃiei şi calităŃii
pajiştilor temporare. Lucrări şt. ICPCP Brasov, vol. XV, 139-150.
Elgersma A., Schlepers H., 2001 – N-use efficiency in grass-clover
mixtures. Grassland Scienceince in Europe, vol. 6, 73-75.
Franham E.D., George J.R., 1994 – Dinitrogen fixation and nitrogen
transfer in birdsfoot trefoil-orchardgrass Communities. Agron. J., 86, 690-694.
Kadziuliene Z., 2001 – Suitability of red clover, white clover and Lucerne
in legume (grass mixtures for a three-year leg. Grassland Scienceince in Europe,
vol. 6, 48-50.
Lieven-Antoniu A.C., Whittam T.S., 1997 – Specificity in the symbiotic
association of Lotus corniculatus and Rhizobium loti from natural populations.
Molecular Ecology, vol. 6, nr.7, 629-639.
Razec I., Razec M., Dragomir N., Oprea G., 2001 – Nitrogen fixation by
Trifolium repens and Lotus corniculatus in mixture with Dactlis glomerata.
Grassland Scienceince in Europe, vol. 6, 61-63.
Simpson J.R., 1976 – Transfer of nitrogen from three patures under periodic
defoliation in a field environment. Austral J. Expt. Agric. Anim. Husb., 16, 863-
