Rock phosphate enriched compost: An approach to …

In this study, rock phosphate enriched composts (RP-compost) were prepared by mixing four low-grade Indian rock phosphates with rice straw with and without Aspergillus awamori. RP-compost had ...

(PDF) Singh et al 2016.pdf | Arvind Yadav

The rock phosphate which is a cheaper source of phosphorus but cannotapplied directly into the soil therefore enrichment of organic manure with rock phosphate Research in Environment and Life Sciences 19 January, 2016 Singh et al. Response of phosphorus on yield, nutrient uptake and net returns climate of this region is a typically semi-arid ...

(PDF) Singh et al 2016.pdf | Arvind Yadav

The rock phosphate which is a cheaper source of phosphorus but cannotapplied directly into the soil therefore enrichment of organic manure with rock phosphate Research in Environment and Life Sciences 19 …

Phosphate Rock Statistics and Information | U.S. Geological …

Phosphorus is an essential element for plant and animal nutrition. Most phosphorus is consumed as a principal component of nitrogen-phosphorus-potassium fertilizers used on food crops throughout the world. Phosphate rock minerals are the only significant global resources of phosphorus. The United States is the world's leading producer and ...

Phosphate Rock: Origin, Importance, Environmental Impacts …

Cadmium concentration in phosphate rock varied from 3-150 mg/kg with average concentration of 18 mg/kg, while uranium concentration in phosphate rock is ranging from 20 to 500 mg/kg with average ...

phosphate rock singh

WebNov 1, 2016 In addition, two additives were used in this experiment: rock phosphate (27% P 2 O 5) finely ground in three different proportions (fresh mass basis): i) 0% rock phosphate, ii) 2.3% rock phosphate (equivalent to 0.27% P) and iii) 4.6% rock phosphate (equivalent to 0.54% P); and elemental sulfur powder in two different …

Mineral resource of the month: phosphate rock

National Minerals Information Center. Phosphate rock minerals provide the only significant global resources of phosphorus, which is an essential element for plant and animal nutrition. Phosphate rock is used primarily as a principal component of nitrogen-phosphorus-potassium fertilizers, but also to produce elemental phosphorus and animal …

Use of phosphate rocks for sustainable agriculture

Singh and Amberger (1991) investigated dissolution of two sedimentary PRs (Mussoorie and Hyperphos) applied separately. They incubated PR mixed with wheat straw at a ratio of 1:4, inoculated with soil and compost extract, and also adjusted the C:N ratio by adding urine. ... The principle behind the use of phosphate rock elemental sulphur ...

Rock phosphates and P fertilizers as sources of U

Mean concentrations between 6 and 149 mg/kg U were found in P containing mineral fertilizers, while mean concentrations in mineral fertilizers without P were below 1.3 mg/kg U. Mean U concentrations in farmyard manures did not exceed 2.6 mg/kg U. As a consequence, an average P dressing of 22 kg/ha P would charge the soil with up to 17 …

A Circular Economy Model to Improve Phosphate …

The agricultural management of phosphorus is complicated by the inefficient use of phosphorus by plants, consequent environmental losses, and the rapid consumption of slowly renewed phosphate rock …

The 'Crago Process' and Its Applicability to a South African

The Elandsfontein sedimentary phosphate deposit has a projected initial life of mine of about 14 years and can deliver one million tonnes a year of phosphate rock concentrate at a steady state. The resource was defined by Snowden and SRK in October 2018 on a total (gross) basis with 74% …

Humic substances in straw compost with rock phosphate

Abstract. The production of humic substances and their retention capacities for phosphorus and calcium released during composting of wheat straw with two types of low-grade rock phosphate were examined. Relative quantities of humic acids increased with increase of composting time, while fulvic acids production decreased after 30 days …

Alternatives to Soluble Phosphorus Fertilizers in Indian Context

Rock phosphate is the raw material required for the manufacturing of soluble phosphorus fertilizers, which is nonrenewable in nature and expected to last for 50–400 years. ... Reza SK, Pal S, Singh S. Rock phosphate-enriched pressmud compost: Direct effect in pearl millet (Pennisetum glaucum L.) and residual effect in mustard …

(PDF) Long-Term Effect of Phosphate Fertilization on

Citation: Singh BR, Dependra KC, Åsgeir RA ... This study was designed to assess the impact on application of Eppawala rock phosphate (ERP) and triple super phosphate (TSP) as P fertilizers and ...

[PDF] Effect of single super phosphate and rock phosphate …

A pot experiment was conducted in department of Soil Science and Agricultural Chemistry of College of Agriculture, Central Agricultural University, Imphal (Manipur) during kharif season of 2016, to study the effect of Single Super Phosphate (SSP) and Rock Phosphate (RP) on nutrient uptake of paddy (CAU-R1). Results revealed that …

Phosphate-Solubilizing Microorganisms: Mechanism and …

Singh H, Reddy MS (2011) Effect of inoculation with phosphate solubilizing fungus on growth and nutrient uptake of wheat and maize plants fertilized with rock phosphate in alkaline soils. Eur J Soil Biol 47:30–34.

Phosphate Rock

The term phosphate rock (or phosphorite) is used to denote any rock with high phosphorus content. The largest and least expensive source of phosphorus is obtained by mining and concentrating phosphate rock from the numerous phosphate deposits of the world. Some phosphate rock is used to make calcium phosphate nutritional …

Agronomic potential of indigenous phosphate rocks as a …

indigenous phosphate rocks as a phosphorus fertilizer in zambia (interim report) a. mapiki and b.r. singh . agricultural university of norway

(PDF) Chemical reactivity of phosphate rocks

The effectiveness of phosphate rock relative to soluble P fertilizer... | Find, read and cite all the research you need on ResearchGate ... (Akande et al., 2005;Antil and Singh, 2007;Arcand and ...

Phosphate Rock

A new phosphate rock mine began operation near Spanish Forks, UT, in July 2020. The operating company will market its phosphate rock for direct application to soil for organic farming. Production initially was to be about 5,000 tons per year, eventually increasing to 48,000 tons per year after 5 years. The mine site was developed in the early ...

A Circular Economy Model to Improve Phosphate …

Phosphorus (P) is an essential nutrient for the plant life cycle. The agricultural management of phosphorus is complicated by the inefficient use of phosphorus by plants, consequent environmental …

Effect of inoculation with phosphate solubilizing fungus on …

Rock phosphate fertilization and inoculation with Glomus constrictum and rock-phosphate-solubilizing fungi (A. niger and P. citrinum) significantly increased dry matter yield of wheat plants under all experimental conditions, but the effect was more evident in non- sterilized pot soils and in the field than in sterilized pots. Expand

Effect of inoculation with phosphate solubilizing fungus

To enhance the fertilizer value of rock phosphate in alkaline soils, the phosphate (P) solubilizing fungus Penicillium oxalicum was isolated from the rhizosphere soil of rock phosphate mine ...

The effect of rock phosphate-enriched compost on the yield …

We evaluated the effect of compost enriched with rock phosphate on the yield and phosphate nutrition of rye grass in a calcareous clay loam soil. Enriched compost was prepared by composting either Mussoorie rock phosphate (MP) or Hyper rock phosphate (HP) separately with wheat straw for up to 120 days. A significant amount of …

Phosphate and Potassium Solubilizing Bacteria from

In addition, these are effective phosphate-and K-solubilizing bacteria (Diep and Hieu, 2013); according to Hafez et al. (2016), Azotobacter solubilized up to 43% of Egyptian phosphate rock. Singh ...

Solubilization of rock phosphate by humic and fulvic acids …

Corpus ID: 103369354. Solubilization of rock phosphate by humic and fulvic acids extracted from atrow compost. C. Singh, A. Amberger. Published 1997. Environmental Science, …

North America is Projected to Lead the Global Phosphate

Follow. ROCKVILLE, Md., March 01, 2022 (GLOBE NEWSWIRE) -- According to a recently published Fact.MR report, the global Phosphate Rock market is projected to grow at a compound annual rate (CAGR ...

Co-inoculation with phosphate-solubilzing and nitrogen …

Rock phosphate. Rock phosphate was collected from the phosphate mine of Mabian County located in southwest Sichuan province, China. It was supplied as a 100-mesh-size fine powder containing 7.2% total P, 0.023 mg g −1 water-soluble P, 0.15 mg g −1 P soluble in 0.5 M NaHCO 3 and a pH of 8.1. Phosphorus in RP was presented as …

‪Lena Q. Ma‬

Mechanisms of lead, copper, and zinc retention by phosphate rock. X Cao, LQ Ma, DR Rhue, CS Appel. ... N Singh, LQ Ma, M Srivastava, B Rathinasabapathi. Plant Science 170 (2), 274-282, 2006. 479: 2006: Availability and assessment of fixing additives for the in situ remediation of heavy metal contaminated soils: a review.

Phosphate rock reduces the bioavailability of heavy metals …

The rock phosphate addition enhanced the metal transformation depending on the level of rock phosphate amendment. Zinc was found in the exchangeable and reducible fractions in the compost.

Application of rock phosphate enriched composts increases …

Purpose Phosphorus (P) deficiency in agricultural land is one of the main factors which reduce the crop production and yield. To increase the crop growth, the availability of P using the rock phosphate (RP) can be enhanced using organic waste with the addition of phosphate solubilizing microorganisms (PSMs). Moreover, the …

Phosphorus availability and exchangeable aluminum …

Manure + phosphate rock led to increases in HCl-Pi compared to sole manure and sole phosphate rock during LR2018. This can be ascribed to the application of phosphate …

(PDF) Evaluation of Performance of Crop Production …

The results indicated that the combined use of low grade rock phosphate and ammonium sulphate or ammonium nitrate at 16 kg N/ha (when compared to di-ammonium phosphate), resulted in a significant growth rate and a better yield in the test crops and was found to be a more attractive management option when compared to diammonium phosphate.

Solubilization and Availability of Phosphorus during …

Solubilization and Availability of Phosphorus during Decomposition of Rock Phosphate Enriched Straw and Urine. C. Singh, A. Amberger. Published 1991. Environmental …

Agronomic potential of indigenous phosphate rocks as …

A. MAPIKI AND B.R. SINGH . AGRONOMIC POTENTIAL ()F INDIGENOU S . PHOSPHATE ROCKS ASA PHOSPHORUS . FERTILIZER IN ZAMBIA (INTERIM REPORT) A. M a . pi . k I . a . B. R . s . Ing h . ... b. Both ingredients for PAPR production, phosphate rock and sulphuric acid, are available in abundance within the country. 4 c. …

Solubilization and Availability of Phosphorus during …

ABSTRACT The solubilization and availability of phosphorus were measured during decomposition of wheat straw and cattle urine with two types of low grade rock phosphate, Mussoorie rock phosphate (M. phos) and Hyperphos. The rate of solubilization of insoluble phosphorus from both M. phos and Hyperphos increased significantly up to 60 days and …