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Phosphate Solubilizing Bacteria (psb) Population Status: (2016-2017)

M. A. H. Bhuiyan
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

M. F. A. Anik
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh.

M. Rahman
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh.

F. Alam
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh.

M .E. Ali
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

Abstract/ Executive Summary:

Bangladesh is sub-tropical country where the atmospheric conditions are favourable for microorganisms. Fifteen soil samples were collected to know the phosphate solubilizing bacteria (PSB) population status in soils of different AEZs of Bangladesh. Soil samples were collected from BARI Central Farm (AEZ-28), RARS, Jamalpur (AEZ-09), RARS, Jessore (AEZ-11); RARS, Ishurdi (AEZ-11); Farmer’s field, Norail (AEZ-12); Farmer’s field, Faridpur (AEZ-12); Farmer’s field, Pabna (AEZ-11); Farmer’s field, Chuadanga (AEZ-11); RHRS, Chapainawabgonj (Fruit plants) (AEZ-11); RHRS, Patuakhali (Fruit plants) (AEZ-13); ARS, Khulna (Fruit plants) (AEZ-13). Phosphate solubilizing bacteria was grown in Pikovskaya’s media and PSB colonies were counted. The highest PSB population (1.5 ´ 10⁶g^-1 soil) was found in soils of RARS, Ishurdi (chickpea experiment) and the lowest population (2.50 ´ 10³g^-1 soil) was observed in the soils of RHRS, Patuakhali (Fruit plants).

Keywords: Phosphate solubilizing bacteria, PSB, Soils, AEZs, Hydrology, Physiography, Agro Ecological Zones

Location: BARI Central Farm Gazipur, RARS, Jamalpur, RARS, Jessore, RARS, Ishurdi, Farmer’s field, Norail, Farmer’s field, Faridpur, Farmer’s field, Pabna, Farmer’s field, Chuadanga, RHRS, Chapainawabgonj (Fruit plants), RHRS, Patuakhali (Fruit plants), ARS, Khulna (Fruit plants), Bangladesh

Start Date: 00-00-2016

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Bacteria

Objectives:

To know the phosphate solubilizing bacteria (PSB) population status in soils of different AEZs of Bangladesh.

Methodology:

Soil sample collected from the rhizosphere soil of different crop plant selected different AEZ(s) of Bangladesh. A total of 15 composite soil samples were used for counting phosphate solubilizing bacteria (PSB) population from 5 different AEZ(s) of Bangladesh. Land areas of these agro ecological zones were recognized on the basis of hydrology, physiography, soil types, tidal activity, cropping patterns, and seasons. Representative soil samples have been collected from different crop fields of these agro ecological zones. Soils were taken from three different places of each crop field from 0-6 inches depth and then the soils were placed in plastic bags. The plastic bags were pin holed for aeration, and stored in laboratory prior to analysis. Pikovskaya’s medium was prepared for growing of PSB colonies. After serial dilution one ml of solution was poured in a petridish having agar media. The petriplates were incubated three days for counting PSB colonies.

Source of Information: Annual Research Report 2016-2017, Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh.

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Phosphate solubilizing bacterial population was found in soils of the highest PSB population (1.5 ´ 10⁶g^-1 soil) was found in soils of RARS, Ishurdi (chickpea experiment) and the lowest population (2.50 ´ 10³g^-1 soil) was observed in the soils of RHRS, Patuakhali (Fruit plants). Further studies in soils of different AEZs of Bangladesh are needed to verify the PSB population.

Knowledge Management: Report/Proceedings