Ability of Biochar to Modify Availability of Soil Nutrients

Ing. Niguss Solomon Hailegnaw

Doctoral thesis

Abstract:

Nowadays there is a tendency of increasing the production of biochar worldwide. Those reasons are the capability of biochar to mitigate global warming, improve degraded soil, prevent loss of nutrients in soils, serving as a source of nutrients for plants, and its benefit as an efficient way of bio-waste. Therefore, there is a need for studies assessing biochar's effect on soil nutrients and investigating the most limiting factors controlling the performance of biochar in soil. This study assesses the effect of single biochar on soil inorganic nitrogen, dissolved organic carbon, soil pH, cation exchange capacity, exchangeable cations Ca2+, K+, Mg2+, and trace elements. Further, it investigates the interaction of biochar with nitrification inhibitors treated ammonium sulfate fertilizer. Moreover, the study discusses in detail soil factors playing crucial roles in determining the performance of the biochar in the soil.

Keywords

high temperature biochar, soil nutrients, soil factors, interacation with nitrification inhibitors

Jazyk práce: English

Datum vytvoření / odevzdání či podání práce: 15. 6. 2021

Obhajoba závěrečné práce

• Vedúci: prof. Ing. Pavel Tlustoš, CSc. dr. h. c.
• Oponent: Lukáš Trakal, Ph.D.

Czech University of Life Sciences Prague

Faculty of Agrobiology, Food and Natural Resources

Doctoral programme / odbor:
Agricultural Specialization / Exploitation and Conservation of Natural Resources