NUMBER OF PHOSPHATE-MOBILIZING BACTERIA IN LEACHED CHORNOZEM AND TRANSFORMATION OF PHOSPHORUS IN THE ROOT ZONE OF CORN PLANTS UNDER THE INFLUENCE OF POLIMIKSOBAKTERYN
Journal Title: Сільськогосподарська мікробіологія - Year 2018, Vol 28, Issue
Abstract
Objective. Investigate the influence of the microbial preparation Polimiksobakteryn on the formation of populations of phosphate-mobilizing bacteria and transformation of phosphorus compounds in the root zone of corn plants under cultivating cultures on leached chornozem. Methods. Field, microbiological, biochemical, agrochemical, statistical. Results. With the use of Polimiksobakteryn for the bacterization of corn seeds and processing of vegetative plants in the phase of 3-5 leaves or 7-9 leaves in the root zone, the number of bacteria that hydrolyze organic phosphates increases to 24.2 million/g soil (in control – 15.7 million/g soil), those dissolving mineral phosphates: calcium – up to 26.0 million/g soil (in control – 10.6 million/g soil, aluminium – up to 19.5 million/g soil (in control – 10.1 million/g soil), iron – up to 21.7 million/g soil (in control – 12.1 million/g soil) and phosphatase activity increases from 2.31 mg P2O5 to 3.68 mg P2O5/100 g soil per hour, the degree of mobility of phosphates increases depending on the phases of plant development, while the content of mobile phosphorus compounds in the rhizospheric soil of plants decreases compared with the control parameters as a result of their more intensive consumption by plants. During polymerization of seeds by Polimiksobakteryn and the use of the aqueous suspension of the preparation for treatment of vegetative plants, increase of phosphorus content in leaf mass and corn grain and increase of removal of element with a crop yield by 44.4 % compared with the control parameters is observed. Conclusion. In corn growing technologies, seed bacterization and superficial treatment of vegetative plants in the phase of 3-5 leaves or 7-9 leaves with microbial preparation Polimiksobakteryn – a plant growth stimulator, the bioagent of which is phosphate-mobilizing bacteria Paenibacillus polymyxa KB is an effective method for optimizing phosphorus nutrition of plants and increasing crop yields.
Authors and Affiliations
L Tokmakova, I Larchenko, O Lepekha
Keywords
Related Articles
- EP ID EP498099
- DOI -
- Views 90
- Downloads 0
BRADYRHIZOBIUM JAPONICUM REACTION IN PURE CULTURE AND SYMBIOTIC SYSTEMS TO THE USE OF NANOCARBOXYLATES OF MICROELEMENTS
Objective. Study the influence of various concentrations of germanium, molybdenum, vanadium, cobalt, iron, copper and zinc on the growth dynamics of rhizobia, to select the most effective ones for studying their role as...
PECULIARITIES OF USE OF MODERN BIOLOGICAL PREPARATIONS FOR PROTECTION OF AGRICULTURAL CULTURE FROM PESTS IN THE FOREST STEPPE AND POLISSIA OF UKRAINE
The modern biological preparation and their efficiency in the system of protection of agricultural crops from pests, in particular trichogramma, natural populations of the common lacewing, as well as biopreparations Bito...
ACTIVITY OF NITROGEN FIXATION IN LUCERNE AGROCENOSES AND PRODUCTIVITY OF CULTURE UNDER INFLUENCE OF FERTILIZERS AND MICROBIAL PREPARATION
In a long field experiment on common black soil, the influence of various fertilization systems and presowing bacterization of seeds on the activity of symbiotic nitrogen fixation in lucerne agrocenoses and crop producti...
ALLELOPATHY BASES OF HIGHLY PRODUCTIVE AGROPHYTOCENOSES OF INTRODUCED AROMATIC PLANTS IN THE CREATIVE HERITAGE OF L.D. YURCHAK
The information about complex scientific research of introduced aromatic plants given by L. D. Yurchak (1937–2010) – a scientist who made a significant contribution to the development of allelopathy science is provided....
THE FEATURES THE AUTOTROPHIC AND HETEROTROPHIC NITRIFICATION IN THE ROOT ZONE OF WINTER RYE PLANTS UNDER THE USE OF MINERAL FERTILIZERS AND DIAZOBAKTERYN
The paper depicts the study of mineral nitrogen and pre-sowing seeds bacteryzation on the de-velopment of nitrogen fixing bacteria and the activity of autotrophic and heterotrophic nitrification. It was revealed that nit...