An efficiency of Azotobacter chroococcum in the wheat cropped soil
2000
Papic-Vidakovic, T.
The efficiency of 10 Azotobacter chroococcum types of the two wheat varieties has been examine in the study: PKB Prelivka and NS Rana 5, grown in the type of fertile soil in the two-year period, as well as within controlled conditions in the vegetation, the yield and yield components were determined, along with a microbiological activity in the soil: quantity of amonifixators, actinomycetes, azotobacters, oligonitrophile bacteria, fungi, and total number of microorganisms and dehydrogenase activity. A high efficiency of azotobacters in bots controlled and field conditions has been determined. The azotobacters efficiency depended on the azotobacters types and wheat varieties, as well as on the crop characteristics investigated. In the rhizosphere soil, when both varieties of wheat grown in field conditions, most of the strains caused an increase of a total number of microorganisms, the quantity of amonifixators, azotobacters, oligonitrophils bacteria, actinomycetes, dehydrogenase activity and the nitrogen content in the soil. The investigations have shown that it is necessary to make an azotobacter selections at the level of a plant's genotype to choose the most effective types for each variety.
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