Journal of Pharmacognosy and Phytochemistry
Vol. 7, Special Issue 1 (2018)
Release of phosphates in different types of soil by using Phosphate Solubilizing Microorganism (Pseudomonas fluorescens)
An experiment was conducted in the glasshouse of Soil Science Division under Nepal Agriculture Research Council (NARC), Khumaltar, Lalitpur from 16th
July to 6th
October, 2017 with the major objective to study the release of phosphates and change in pH of soil by Phosphate Solubilizing Microorganisms (PSM) in different types of soil. The experiment followed the principle of Completely Randomized Design with five treatments and three replications. The five treatments of the experiment were T1
(Pine forest Soil), T2
(Red Soil), T3
(Swampy area Soil), T4
(Clay Soil) and T5
(Normal Cultivated Soil). 0.1% PSM was applied in each replication @ 5ml per seed with two seeds of French bean in each replication. Various parameters were observed and analysed using SPSS. Results of PSM application on different treatments revealed that the release of phosphates varied significantly among the treatments in different time interval. The highest phosphate release (390.57kg P2
) was found in the treatment T4
(Clay Soil) and the time of maximum release was recorded at 20 days after PSM application. Similarly, the change in pH after the PSM application was also found statistically significant between the treatments in different time interval. The maximum change in soil pH was recorded in treatment T3
(Swampy Soil). Significant positive correlation was found between plant height and available phosphorus content of soil. Likewise, positive correlation was found between plant height and soil pH and between available phosphorus and soil pH but it was not significant. Concluding, application of PSM in soil can solubilize the insoluble phosphorus and make it available for plant uptake.
Pages: 2334-2339 | 1173 Views 235 Downloads
Grishma Lamichhane. Release of phosphates in different types of soil by using Phosphate Solubilizing Microorganism (Pseudomonas fluorescens). J Pharmacogn Phytochem 2018;7(1S):2334-2339.