Effect of industrial and domestic ash from biomass combustion, and spent coffee grounds, on soil fertility and plant growth: experiments at field conditions

Environmental Science and Pollution Research International
João Peres RibeiroLuís A C Tarelho

Abstract

An experimental study was conducted at field conditions in order to evaluate the effect of application of ash from biomass combustion on some soil fertility characteristics and plant growth. Application of 7.5 Mg ha-1 industrial fly ash (IA), domestic ash (DA), and a 50:50 mix of domestic ash (DA) and spent coffee grounds (SCG) was made in different soil parcels. Lolium perenne seeds were sown and the grown biomass was harvested and quantified after 60 days. Soil samples from each parcel were also collected after that period and characterized. Both soil and grown biomass samples were analyzed for Ca, Mg, Na, K, P, Fe, Mn, Zn, and Al contents. Soil pH was determined before and after amendment. All applications rose significantly soil pH. Domestic ash, whether combined with coffee grounds or not, proved to be efficient at supplying available macronutrients Ca, Mg, K, and P to the soil and also reducing availability of Al (more than industrial ash). However, it inhibited plant growth, even more when combined with spent coffee grounds. As regards to elemental abundance in plant tissue, both domestic ash treatments reduced Ca and enhanced Al contents, unlike industrial ash, which proved less harmful for the load applied in the soil....Continue Reading

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Citations

Feb 7, 2020·Environmental Science and Pollution Research International·Antonios ChrysargyrisNikos Tzortzakis
Feb 11, 2020·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Nikhil S BhandarkarSunil K Panchal
May 2, 2020·International Journal of Phytoremediation·Debabrata PandaJijnasa Barik
May 9, 2019·Environmental Science and Pollution Research International·Stergios VakalisMarco Baratieri
Dec 15, 2020·Waste Management·Alberto Adan-MasFátima Montemor
Feb 26, 2020·The Science of the Total Environment·Ana Cervera-MataGabriel Delgado

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