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

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Waste mineral powder supplies plant available potassium : Evaluation of chemical and biological interventions. / Basak, Biraj B.; Sarkar, Binoy; Sanderson, Peter; Naidu, Ravi.

In: Journal of Geochemical Exploration, Vol. 186, 01.03.2018, p. 114-120.

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Basak, Biraj B. ; Sarkar, Binoy ; Sanderson, Peter ; Naidu, Ravi. / Waste mineral powder supplies plant available potassium : Evaluation of chemical and biological interventions. In: Journal of Geochemical Exploration. 2018 ; Vol. 186. pp. 114-120.

Bibtex

@article{bdffb5dfaf124a979f6f778b78ae2647,
title = "Waste mineral powder supplies plant available potassium: Evaluation of chemical and biological interventions",
abstract = "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 powder in successive extraction procedure was recorded higher with organic and mineral acids, which suggested that the material was a slow release K source. A significant positive correlation was observed between K release by different chemical extractants and the biomass yield (r = 0.93; p < 0.05) and K uptake (r = 0.96; p < 0.05) by plants. Among the different chemical extractants, 1 N ammonium acetate and 1 N boiling HNO3 showed higher correlations (r = 0.91 and 0.96, respectively) with plant K uptake values. Both the chemical and biological methods were able to extract only a portion (12–20%) of total K present in the mineral powder. The results indicated that the mineral powder could be used as a slow release K fertilizer in soils. Further studies in long term applications with exhaustive crops under field conditions are needed to assess its feasibility as a source of K in agriculture.",
author = "Basak, {Biraj B.} and Binoy Sarkar and Peter Sanderson and Ravi Naidu",
year = "2018",
month = mar,
day = "1",
doi = "10.1016/j.gexplo.2017.11.023",
language = "English",
volume = "186",
pages = "114--120",
journal = "Journal of Geochemical Exploration",
issn = "0375-6742",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Waste mineral powder supplies plant available potassium

T2 - Evaluation of chemical and biological interventions

AU - Basak, Biraj B.

AU - Sarkar, Binoy

AU - Sanderson, Peter

AU - Naidu, Ravi

PY - 2018/3/1

Y1 - 2018/3/1

N2 - 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 powder in successive extraction procedure was recorded higher with organic and mineral acids, which suggested that the material was a slow release K source. A significant positive correlation was observed between K release by different chemical extractants and the biomass yield (r = 0.93; p < 0.05) and K uptake (r = 0.96; p < 0.05) by plants. Among the different chemical extractants, 1 N ammonium acetate and 1 N boiling HNO3 showed higher correlations (r = 0.91 and 0.96, respectively) with plant K uptake values. Both the chemical and biological methods were able to extract only a portion (12–20%) of total K present in the mineral powder. The results indicated that the mineral powder could be used as a slow release K fertilizer in soils. Further studies in long term applications with exhaustive crops under field conditions are needed to assess its feasibility as a source of K in agriculture.

AB - 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 powder in successive extraction procedure was recorded higher with organic and mineral acids, which suggested that the material was a slow release K source. A significant positive correlation was observed between K release by different chemical extractants and the biomass yield (r = 0.93; p < 0.05) and K uptake (r = 0.96; p < 0.05) by plants. Among the different chemical extractants, 1 N ammonium acetate and 1 N boiling HNO3 showed higher correlations (r = 0.91 and 0.96, respectively) with plant K uptake values. Both the chemical and biological methods were able to extract only a portion (12–20%) of total K present in the mineral powder. The results indicated that the mineral powder could be used as a slow release K fertilizer in soils. Further studies in long term applications with exhaustive crops under field conditions are needed to assess its feasibility as a source of K in agriculture.

U2 - 10.1016/j.gexplo.2017.11.023

DO - 10.1016/j.gexplo.2017.11.023

M3 - Journal article

VL - 186

SP - 114

EP - 120

JO - Journal of Geochemical Exploration

JF - Journal of Geochemical Exploration

SN - 0375-6742

ER -