publication . Article . Other literature type . 2018

Waste mineral powder supplies plant available potassium: Evaluation of chemical and biological interventions

Basak, B.B.; Sarkar, B.; Sanderson, P.; Naidu, R.;
Open Access
  • Published: 01 Mar 2018 Journal: Journal of Geochemical Exploration, volume 186, pages 114-120 (issn: 0375-6742, Copyright policy)
  • Publisher: Elsevier BV
A study was conducted to evaluate a waste rock powder collected from the Seaham quarry in New South Wales, Australia, as a source of potassium (K) in soil. The K supplying capacity of different size fractions of the mineral powder was evaluated by employing five chemical extractants as well as growing maize and holy basil in sand culture experiments. The K release by chemical extractants increased with decreasing particle size of the mineral powder. The amount of K released by different extractants followed the order: water < 0.01 M calcium chloride < 0.01 M citric acid < 1 N ammonium acetate < 1 N boiling nitric acid. The cumulative K release from the mineral p...
free text keywords: mineral powder, chemical extraction, potassium release, sand culture experiment, plant potassium uptake, Economic Geology, Geochemistry and Petrology, Soil water, Citric acid, chemistry.chemical_compound, chemistry, Fertilizer, engineering.material, engineering, Potassium, chemistry.chemical_element, Ammonium acetate, Holy basil, food.ingredient, food, Nuclear chemistry, Geology, Nitric acid, Extraction (chemistry), Geochemistry
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