phosphate rock dissolving

phosphate rock dissolving

Electron microscopy of some rock phosphate

1979-8-1  The size of phosphate particles decreased by the microbial action, with tricalcium phosphate from 140 — 250 to 30 — 90 nm after three weeks of incubation. BacteriaPseudomonas striata, Bacillus polymyxa, B. megaterium andB. pulvifaciens, and fungiAspergillus awamori, A. niger andPenicillium digitatum dissolve

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Electron microscopy of some rock phosphate

Electron microscopy of some rock phosphate dissolving bacteria and fungi. Gaur AC, Arora D, Prakash N. Bacteria Pseudomonas striata, Bacillus polymyxa, B. megaterium and B. pulvifaciens, and fungi Aspergillus awamori, A. niger and Penicillium digitatum dissolve tricalcium phosphate and, much less, Mussorie and Udaipur rock phosphate.

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Phosphate dissolving fungi: Mechanism and

2016-12-1  The present investigation reveals the solubilization efficiency of tri-calcium phosphate (TCP), Udaipur rock phosphate (URP), aluminium phosphate (AP) and ferric phosphate (FP) by Aspergillus niger (ITCC 6719) and Trichoderma harzianum (ITCC 6721) as function of carbon concentrations. Increasing glucose concentration from 1 to 7% in the growth medium, though improved the phosphorus (P ...

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Rock phosphate dissolution by specific yeast

2009-4-1  Phosphate solubilizing yeast (PSY) were isolated from rhizosphere, non-rhizosphere and fruits from Bhavnagar district. The potential of 25 yeasts were analyzed on the basis of phosphate solubilizing zone to growth on solid medium denoted as solubilization index (SI) which ranged from 1.10 to 1.50.

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Isolation of Six Phosphate Dissolving Rhizosphere

2017-1-24  capable of dissolving rock phosphate from organic acid secretions to put P at the disposal of plant [10-13]. These microorganisms responsible for this dissolution include some bacteria, such as Bacillus megaterium, B. subtilis, B. polymyxa, Pseudomonas striata, and some fungi including Aspergillus awamori, Penicillium

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[Isolation and identification of a novel phosphate ...

The strain showed high phosphate-dissolving ability for rock phosphates from Jinning and Kunyang in Yunnan province, Yaan in Sichuan province and Jinping in Jiangsu province with the capacity of 6.64 mg, 78.46 mg, 67.07 mg and 65.24 mg soluble phosphate respectively per liter medium, whereas the phosphate-dissolving ability to the rest of the eight rock phosphates was weak.

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(PDF) Fundamentals of the Wet-Process Phosphoric

This paper is devoted to the fundamentals of natural phosphate rock dissolution under conditions close to those in the industry of the wet-process phosphoric acid production. The dissolution...

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Phosphate Rock Mosaic Crop Nutrition

When phosphate rock is added to soil, it slowly dissolves to gradually release nutrients, but the rate of dissolution may be too slow to support healthy plant growth in some soils. To optimize the effectiveness of phosphate rock, consider these factors: Soil pH. phosphate rock

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Phosphate dissolving fungi: Mechanism and

Phosphate dissolving fungi: Mechanism and application in alleviation of salt stress in wheat. Gaind S (1). Author information: (1)Division of Microbiology, ICAR-Indian Agricultural Research Institute, New Delhi, India. Electronic address: [email protected]

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Importance of phosphate pock application for

Phosphate rock (PR) is considered the cheapest P fertilizer. Phosphate rock sources may be of igneous or sedimentary origin. In Egypt, the natural phosphate rock is located in Sebaiya (Nile Valley), Safaga (Red Sea), and Abu Tartur (Western Desert). The higher the organic matter contents in soil, the better dissolution of the PR.

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The Relationship Between Rock Phosphate

Seventy-four phosphate-dissolving microorganisms were isolated from corn rhizosphere and nonrhizosphere soils. It was found that these microorganisms had complete capacity to solubilize the rock phosphate. This capacity depended upon only the isolates' characteristics, but not their origin. The fungi normally had much higher capacity than the bacteria.

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Isolation of Six Phosphate Dissolving Rhizosphere

2017-1-24  capable of dissolving rock phosphate from organic acid secretions to put P at the disposal of plant [10-13]. These microorganisms responsible for this dissolution include some bacteria, such as Bacillus megaterium, B. subtilis, B. polymyxa, Pseudomonas striata, and some fungi including Aspergillus awamori, Penicillium

More

Phosphate dissolving fungi: Mechanism and

2016-12-1  The present investigation reveals the solubilization efficiency of tri-calcium phosphate (TCP), Udaipur rock phosphate (URP), aluminium phosphate (AP) and ferric phosphate (FP) by Aspergillus niger (ITCC 6719) and Trichoderma harzianum (ITCC 6721) as function of carbon concentrations. Increasing glucose concentration from 1 to 7% in the growth medium, though improved the phosphorus (P ...

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Utilization of phosphate rock as a sole source of ...

Dissolving phosphorus experiment. 200 mL modified Pikovskaya's broth (consisting of 10 g glucose, 0.5 g KNO 3, 0.3 g NaCl, 0.3 g MgSO 4 7H 2 O, 0.03 g FeSO 4, 0.03 g MnSO 4 H 2 O, 0.3 g KCl, and 5 g phosphate rock powder 28,29) was added to 500 mL conical flask, and the pH value was adjusted to 6 with saturated Na 2 CO 3 solution and 1 mol L −1 HCl solution. . The broth was sterilized at ...

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Study on the phosphate-dissolving ability of HM0332

Organic acid can be produced by HM0332 and HM48-3 strains under pure culture condition, which ground phosphate rock is used as phosphate source. Ground phosphate rock can be transformed and the rate of phosphate-transforming (phosphate-dissolving ability) is 9.28% and 7.26% separately.

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In vitro DISSOLUTION OF ACIDULATED ROCK

The low availability of phosphorus (P) in the soil and the high cost of P fertilization are factors that limit agricultural productivity. A biotechnological alternative for to handle this problem is to use soil microorganisms capable of dissolving rock phosphate (RP), thus improving its

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Phosphate Rock No. 19

2019-3-26  Phosphate rock is obtained from geologic deposits located around the world. Apatite, a calcium phosphate mineral, is the ... dissolving rock in a solution containing a dilute acid to simulate soil conditions. Sources classified as “highly reactive” are the

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Phosphate Rock Mosaic Crop Nutrition

When phosphate rock is added to soil, it slowly dissolves to gradually release nutrients, but the rate of dissolution may be too slow to support healthy plant growth in some soils. To optimize the effectiveness of phosphate rock, consider these factors: Soil pH. phosphate rock requires acid soil conditions to effectively nourish crops.

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Biology Free Full-Text Roles of Phosphate

Thus, the largest reservoirs of P in soil and marine environment are phosphate rock (PR) and sedimentary rock, respectively. The natural P cycle is a simple one-way flow from terrestrial to aquatic ecosystems through inorganic PR denudation and sediment immobilization on medium-term timescales (10 3 years) [8,15].

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Particle Size of Rock Phosphate and Microbial ...

1986-1-1  The solubilization of rock phosphate of varying particle size, caused by inoculation with efficient solubilizing Aspergillus awamori and Pseudomonas striata was investigated in culture medium. The studies clearly showed that maximum phosphate was solubilized when rock phosphate particle sizes between 30 to 59 and 60 to 99 mesh were used.

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Rock phosphate dissolution by specific yeast - Europe

Among 25 yeast isolates, 6 yeast belonging to genus Saccharomyces (2), Hansenula, Klockera, Rhodotorula and Debaryomyces exhibited highest SI (1.33–1.50) were further examined for in vitro tricalcium phosphate (TCP) and low grade rock phosphate (RP) solubilization. TCP proved superior to RP with all the yeasts.

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Study on the phosphate-dissolving ability of HM0332

Organic acid can be produced by HM0332 and HM48-3 strains under pure culture condition, which ground phosphate rock is used as phosphate source. Ground phosphate rock can be transformed and the rate of phosphate-transforming (phosphate-dissolving ability) is 9.28% and 7.26% separately.

More

In vitro DISSOLUTION OF ACIDULATED ROCK

The low availability of phosphorus (P) in the soil and the high cost of P fertilization are factors that limit agricultural productivity. A biotechnological alternative for to handle this problem is to use soil microorganisms capable of dissolving rock phosphate (RP), thus improving its

More

Phosphate Rock No. 19

2019-3-26  Phosphate rock is obtained from geologic deposits located around the world. Apatite, a calcium phosphate mineral, is the ... dissolving rock in a solution containing a dilute acid to simulate soil conditions. Sources classified as “highly reactive” are the

More

Particle Size of Rock Phosphate and Microbial ...

1986-1-1  The solubilization of rock phosphate of varying particle size, caused by inoculation with efficient solubilizing Aspergillus awamori and Pseudomonas striata was investigated in culture medium. The studies clearly showed that maximum phosphate was solubilized when rock phosphate particle sizes between 30 to 59 and 60 to 99 mesh were used.

More

Phosphate dissolving fungi: a sustainable alternate for ...

However, the selection of efficient phosphate dissolving microbial strain to develop bio-fertilizer for target nutrient delivery in soil niche is of prime importance. Fig. 1. ... (Pi) from sodium phytate (organic P source), tri calcium phosphate (TCP), Udaipur rock phosphate (URP), iron phosphate (FP) and aluminium phosphate (AP) was explored.

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Biology Free Full-Text Roles of Phosphate

Thus, the largest reservoirs of P in soil and marine environment are phosphate rock (PR) and sedimentary rock, respectively. The natural P cycle is a simple one-way flow from terrestrial to aquatic ecosystems through inorganic PR denudation and sediment immobilization on medium-term timescales (10 3 years) [8,15].

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Significance of Some Soil Amendments and

A field experiment was carried-out on a private farm at the Salah El-Din village, El-Bostan district, Nobaria, El-Behera Governorate, Egypt. The aim of this study was to evaluate the best combination of rock phosphate (RP), sulphur (S), organic manure, and phosphate dissolving bacteria (PDB) inoculation to enhance the availability of phosphorous from rock phosphate and their effects on yield ...

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US2636806A - Acidulation of phosphate rock -

rock phosphate rock Prior art date 1950-05-19 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US163106A Inventor Ernest A Winter

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Rock Phosphate Fertilizer - Garden Myths

Rock phosphate is accepted in the NOP because it is not synthetic and has not been treated by acids as in super phosphate and other more available forms. Gardeners would not use rock phosphate because at the scale at which most people garden, they can get their phosphorus from compost or bagged fertilizer

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