Effect of phosphorus soluble bacteria on phosphorus uptake and some growth and nutritional characteristics of wheat

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Norouzi Masir m.; ENAYATIZAMIR N.; Ghadamkhani a.

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Journal: Journal of Soil Management and Sustainable Production Year:2019 | Volume:8 | Issue:4 Page(s): 111-126

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Title

Effect of phosphorus soluble bacteria on phosphorus uptake and some growth and nutritional characteristics of wheat

Author(s)

Norouzi Masir m. | ENAYATIZAMIR N. | Ghadamkhani a. | Issue Writer Certificate

Keywords

BiofertilizerQ1

Chemical fertilizerQ2

ConcentrationQ1

YieldQ1

Abstract

Background and Objectives: Bioavailability and phosphorus mobility are lower in most soils than other essential nutrients. Although phosphorus is abundant in soils in both organic and inorganic forms, it is frequently a major or even the prime limiting factor for plants growth. Phosphate solubilizing bacteria (PSB) has ability to convert insoluble form of phosphorous to an available form. Applications of PSB as inoculants increase the phosphorus uptake by plant. Therefore, the purpose of this study was to investigate the effect of phosphorus solubilizing bacteria on phosphorus uptake and some characteristics of wheat. Materials and Methods: A factorial experiment was conducted in a completely randomized design with three replications in greenhouse conditions. Treatments consisted of four levels of bacteria (without inoculation (control), inoculation with Enterobacter cloacae R33, inoculation with Pseudomonas sp R9, inoculation with both Enterobacter cloacae R33 and Pseudomonas sp R9) and three levels of CaH4(Po4)2. H2O (0%, 50% and 100% of phosphorus requirement). During the experiment, characteristics such as plant height and chlorophyll index were measured. At the end of cultivation period, dry weight of root and aerial part and also phosphorus Concentration in root, aerial part and grain was determined using spectrophotometry at 470 nm, the yellow method after dry digestion. The amount of phosphorus uptake in root, aerial part and grain was also determined. Also the amount of available phosphorus in the soil was measured after extraction with NaHCO3. Results: Results showed a significant effect of bacteria and fertilizer interaction on the soil pH and exchangeable phosphorus (P<0. 01). The lowest amount of pH and the highest amount of soil exchangeable phosphorus were observed in the treatment containing consortium of bacteria and application of 100 percent of plant phosphorus requirement. The interaction effect of bacteria and fertilizer were significant on chlorophyll index, dry weight aerial part and phosphorus Concentration and uptake in root, aerial part and grain (P<0. 01). The main effect of bacteria were significant on plant height, dry weight root and grain Yield, (P<0. 01). The highest grain Yield was observed in the presence of simultaneous application of two bacteria, Enterobacter cloacae R33 and Pseudomonas sp R9 with 12. 7%, 7. 30% and 7. 30%, respectively. The highest Concentration of phosphorus in root and aerial part was observed in the bacteria consortium and 50 percent of plant phosphorus requirement. Also, the maximum phosphorus Concentration and its uptake of grain were obtained in the treatment of simultaneous application of two bacteria and 50% phosphorous fertilizer requirement with 31. 4% and 58. 4%, respectively, compared to the control (50% fertilizer requirement and no-inoculation). Conclusion: The results showed that microbial treatments increased the bioavailability of phosphorus in soil to absorb wheat. The highest amount of characteristics measured in the wheat plant was observed in the bacteria consortium and 50 percent of plant phosphorus requirement. Therefore, the use of microbial microorganisms capable of dissolving phosphorus can partially eliminate the fertilizer requirement and reduce the amount of phosphate fertilizer.

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APA: Copy

Norouzi Masir, m., ENAYATIZAMIR, N., & Ghadamkhani, a.. (2019). Effect of phosphorus soluble bacteria on phosphorus uptake and some growth and nutritional characteristics of wheat. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 8(4 ), 111-126. SID. https://sid.ir/paper/209939/en

Vancouver: Copy

Norouzi Masir m., ENAYATIZAMIR N., Ghadamkhani a.. Effect of phosphorus soluble bacteria on phosphorus uptake and some growth and nutritional characteristics of wheat. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2019;8(4 ):111-126. Available from: https://sid.ir/paper/209939/en

IEEE: Copy

m. Norouzi Masir, N. ENAYATIZAMIR, and a. Ghadamkhani, “Effect of phosphorus soluble bacteria on phosphorus uptake and some growth and nutritional characteristics of wheat,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 8, no. 4 , pp. 111–126, 2019, [Online]. Available: https://sid.ir/paper/209939/en

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