Coal-derived mineral matter as a soil amendment
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United States of America Patent
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Feb 20, 2018
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app pub date -
Apr 23, 2015
filing date -
Apr 23, 2015
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Abstract
Coal-derived mineral matter particles are an effective soil amendment. Coal-derived mineral matter particles added to soil increase the silt and clay fractions of the soil and improve the soil texture. The fine coal-derived mineral matter particles also increase mineral and essential nutrient availability for plant growth. Improved soil texture also increases water holding capacity and cation-exchange capacity (CEC) of the soil. The mineral matter particles typically have a size less than 50 μm and an average size of 10 μm or less. In some non-limiting embodiments, the mineral matter particles mixed with the soil are present in the mixture in an amount ranging from 5 to 30 wt. %. The coal-derived mineral matter particles contain a plurality of essential nutrients necessary for healthy plant growth selected from B, Ca, Cl, Cu, Fe, Mg, Mn, Mo, N, P, K, S, and Zn.
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Cited Art Landscape
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