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Bulgarian Journal of Soil Science, Agrochemistry and Ecology
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Biological Methods to Increase Yield and Improve of Quality Production in Growing Legumes of Chernozem Soils
R. Donkova, A. Dimitrova, E. Dzonova, G. Petkova, K. Nedyalkova, A. Markova, R. Altimirska
Abstract: Data on symbiotic nitrogen fixation of some important leguminous plants in conditions of Chernozem soils were summarized. Some of the factors that enable the regulation of symbiotic nitrogen fixation process were studied. The influence of soil type, plant cultivars– nitrogen fixing bacteria genetic compatibility, single and mixed inoculation of some leguminous plants, the influence of zinc and other microelements application manner were investigated. A yield and protein content increase in effective plant-nitrogen fixing bacteria combinations was established. Effective combinations were selected, as follows: for bean – R. leguminosarum bv. phaseoli 51 + A. brasilense sp. 107 и R. leguminosarum bv. phaseoli 38 + A. сhroococcum 9a; for soybean – Br. japonicum 646 + A. chroococcum 9a; for alfalfa – R. meliloti 24L + A. brasilense sp. 107; for lupine – Bradyrhizobium sp. (lupini) 300 + A. brasilense sp. 107.
Keywords: biological methods; Chernozems; yield of leguminous plants
Date published: 2017-02-13
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