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- W891283588 abstract "Modern farming needs increase of cynosis productivity under the conditions of abiotic stress factors and antropogenic loads presiding inoculation of seeds by highly effective strains of microorganisms is very important method of plant productivity increase, in particular of grain productivity For recent 20 years it was found a big quantity of plant families, interrelated with nitrogen fixing microorganisms (endogenic and exogenic). It was found that nitrogen fitatin activity and proess taking place at that period are closely correlated with plant roots (Watanabe, Barraqie, 1979). It was also found the possibility of control such interrelations cereals ? nitrogen-fixing microorganisms (Godova, 1983; Umarov, 1983; Rennie, 1981 et. al), it gives the possibility to apply different cultures at nitrogen fixing microorganisms for preseeding inoculation of seed stock. But successful inoculation depends on both activity of bacterial strains of cultivated crop and environmental conditions. In our investigations we studied the efficiency of pre-seeding inoculation in meadow-chernozemic soil, on different agricultural backgrounds, in the framework of Geographic network of experiments with nitrogen fixation microorganisms (All- Russian Research Institute of Agricultural Microbiology, St.-Petersburg). The evaluation of efficiency of microbiological products in rice during vegetation tests was carried out with variety spalchik and with variety liman under field conditions. Vegetation researches were carried out by use of different cultures of microorganisms (Arthrobacter, Agrobacter, Flavobacter, Bacillus and Klebsiella). As the results of vegetation tastes yield increase by mineral fertilizer application, without seed inoculation was from 216 to 285%, depending on split nitrogen application. Yield increase by pre-seeding inoculation of seeds and by single application of total fertilizer dosage (N210P90K60) was 1-30%. The largest rice grain yield was obtained by seed inoculation with Flavobacter (+20%) and Bacillus (+30%), during twice nitrogen application (the main application and topdressing). During move split application of nitrogen fertilizer (the main application and two top-dressing) the biggest rice grain yield increase was abtained by pre seeding inoculation of seeds by cultures Flavobacter and Bacillus. But in this case efficiency of inoculation decreased on the average to 8%. Results of field experiments with use of microbiological products of industrial production on sort basis (Agrofil, Mizorin, Azogrin, Extrasol) showed that depending on agricultural background level (N0P0K0, N60P90K60, N90P90K60) and application rate of biological product, yield increase changes from 3 to 36%. The biggest yield increase (36%) is provided by pre-seeding inoculation of seeds by Extrasol, at normal fertilizer application rate (N60P90K60). (Resume d'auteur)" @default.
- W891283588 created "2016-06-24" @default.
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- W891283588 date "2002-01-01" @default.
- W891283588 modified "2023-09-26" @default.
- W891283588 title "Regulation of rice grain productivity by microbiological products" @default.
- W891283588 hasPublicationYear "2002" @default.
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