نتایج جستجو برای: rock phosphate

تعداد نتایج: 142334  

Journal: :The Journal of the Society of Chemical Industry, Japan 1925

Journal: :Journal of experimental agriculture international 2022

Aims: Soils in Ghana's coastal savanna are typically poor phosphorus (P), which has an impact on crop growth and productivity. The majority of West African phosphate rock formations not reactive; therefore, their direct applications do facilitate easy P availability to crops. Co-composting organic waste with using phosphorus-solubilizing microorganisms is the new paradigm adopted by scientists ...

G. A. M. Ali , K. A. Aly , K. F. Chong, K. H. S. Shaaban, M. A. M. Uosif , R. Elsaman, Y. B. Saddeek ,

Background: The new glasses from harmful environmental waste such as cement dust; limestone phosphate, sand and borax (Genkare) were manufactured. Investigation of the radioactivity present in these materials (Phosphate rock, cement dust, limestone, sand and borax) enables one to assess any possible radiological hazard to humankind by such materials. Materials and Methods: Fifteen samples were ...

2010
Adam M. Ross Monique N. Williams Daniel R. Talham Jeffrey J. Keaffaber

In aquatic environments, phosphorus is known as the “limiting nutrient.” It combines with nitrogen and photosynthetic processes to produce plant and algal growth. Phosphorus in marine life support systems exists in either a particulate or dissolved phase. While particulate sources may be removed during filtration or fractionation, the dissolved form persists. In a typical marine environment (pH...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2006
U Berg D Donnert P G Weidler E Kaschka G Knoll R Nüesch

Investigations were focused on the development of a technology for phosphorus (P) recovery straight from wastewater. Facing the finiteness of the natural resources of this essential nutrient, the declared goal must be the sustainable use of available phosphorus sinks such as wastewater treatment plants (WWTP) for the generation of P rock substitutes. A feasible method for simultaneous eliminati...

2013
M. D. Meena D. R. Biswas

A field experiment was conducted to evaluate the residual effect of rock phosphate and waste mica enriched compost on phosphorus and potassium supplying capacity under soybean crop grown after wheat in a Typic Haplustept. Enriched compost prepared using rice straw, rock phosphate, waste mica and Aspergillus awamori had higher chemical (total P, K, Ca, Mg and micronutrients) as well as biologica...

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