International Journal of Diseases and Disorders
International Journal of Diseases and Disorders ISSN 2329-9835 Vol. 8 (1), pp. 001-008, January, 2020. © International Scholars Journals
Full Length Research Paper
Importance of microbiological fertilizer used in soybean production: Agronomical and biological aspects
Svetlana Balešević-Tubić1*, Vojin Đukić1, Jelena Marinković1, Gordana Dozet2, Docent Kristina Petrović1 and Mladen Tatić1
1Institute of Field and Vegetable Crops, M. Gorkog 30, 21000 Novi Sad, Serbia.
2Faculty of Biofarming, Marsala Tita 39, 24300 Bačka Topola, Serbia.
Accepted 10 September, 2019
Inoculation is the best way to ensure good nodulation with the proper strain of nitrogen-fixing bacteria for increased yield in an environmentally safe manner. This investigation was conducted on three-year experiment which was set up in four replications with three-crop rotation (maize-soybean-wheat) at experimental field of the Institute of Field and Vegetable Crops, Novi Sad, Serbia. Effects of application of microbiological fertilizer (with nitrogen-fixing bacteria Bradyrhizobium japonicum) on root mass, number and mass of nodes per plant, soil biogeneity (number of ammonifiers, Azotobacter, actinomycetes), as well as the effect on soybean yield were studied. Obtained results indicated positive impact of inoculation on nitrogen fixation parameters. The higher amounts of mineral nitrogen had negative impact on atmospheric nitrogen fixation, that is, by increasing preplanting mineral nitrogen amount in the soil by 1 kg, the amount of calculated nitrogen from the air was decreased by 1.72 kg. Increasing abundance of studied microorganisms in the rhizosphere, as well as soybean yield using microbiological fertilizer was stimulated by plowing under crop residues. The impact of meteorogical conditions on the effects of inoclutaion was very significant.
Key words: Inoculation, fertilizing, nitrogen fixation, soybean, microorganisms, yield.
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