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Soil fertility escalation and fertilizer phosphorus saving by consortium of Burkholderia species in context with sugar beet
2nd International Conference on Agricultural & Horticultural Sciences
Radisson Blu Plaza Hotel, Hyderabad, India February 03-05, 2014

Shrikumar V. Mahamuni

Scientific Tracks Abstracts: Agrotechnol

Abstract:

Soil fertility is coupled with number of microorganisms present and their activities in soil. In the present investigation, a pot culture experiment with factorial completely randomized design (FCRD) was performed to evaluate the impact of a lignite based bioinoculant (VIMP) containing consortium of four phosphate solubilizing species of Burkholderia viz., Burkholderia cenocepacia strain VIMP01(JQ867371), Burkholderia gladioli strain VIMP02 (JQ811557), Burkholderia gladioli strain VIMP 03 (JQ867372) and Burkholderia species strain VIMP 04 (JQ867373) isolated from sugarcane and sugar beet rhizosphere, on enzyme activities, CO 2 evolution rate and available phosphorus in sterile and non-sterile soil along with or without sugar beet. The highest soil acid and alkaline phosphatase activities were recorded on 90 DAS while the highest soil urease and dehydrogenase activities were recorded on 30 and 60 DAS respectively. Soil microbial activities were recorded at the highest level by the treatment of non-sterile soil + VIMP + sugar beet in combination where the level of available phosphorus was found to be increased substantially by 87.63% and 115.14% as compared to sterile soil alone and non-sterile soil alone control treatments, respectively. Effects of graded levels of phosphorus fertilizer viz. 50%, 75% and 100% RDF with or without bioinoculant VIMP on yield and phosphorus uptake of sugar beet under field trial were also studied using factorial randomized block design (FRBD). The yield and phosphorus uptake of sugar beet recorded by the treatment 75% P 2 O 5 + VIMP were found at par with results of treatment 100% P 2 O 5 + VIMP.

Biography :

Shrikumar V. Mahamuni has completed his Ph.D. at the age of 39 years from Pune University. He is the Assistant Professor in Microbiology, at the Pune University affiliated Shardabai Pawar Mahila College, Malegaon Bk., Baramati. He has 18 years of teaching experience and published 03 papers in reputed journals.