Effect of Biochar on Soil Properties, Soil Loss, and Cocoyam Yield on a Tropical Sandy Loam Alfisol.

Autor: Adekiya AO; College of Agricultural Sciences, Landmark University, P.M.B. 1001, Omu-Aran, Kwara, Nigeria., Agbede TM; Department of Crop, Soil and Pest Management Technology, Rufus Giwa Polytechnic, P.M.B. 1019, Owo, Ondo, Nigeria., Olayanju A; Department of Agricultural & Biosystem Engineering, Landmark University, P.M.B. 1001, Omu-Aran, Kwara, Nigeria., Ejue WS; College of Agricultural Sciences, Landmark University, P.M.B. 1001, Omu-Aran, Kwara, Nigeria., Adekanye TA; Department of Agricultural & Biosystem Engineering, Landmark University, P.M.B. 1001, Omu-Aran, Kwara, Nigeria., Adenusi TT; College of Agricultural Sciences, Landmark University, P.M.B. 1001, Omu-Aran, Kwara, Nigeria., Ayeni JF; Department of Agricultural & Biosystem Engineering, Landmark University, P.M.B. 1001, Omu-Aran, Kwara, Nigeria.
Jazyk: angličtina
Zdroj: TheScientificWorldJournal [ScientificWorldJournal] 2020 Feb 25; Vol. 2020, pp. 9391630. Date of Electronic Publication: 2020 Feb 25 (Print Publication: 2020).
DOI: 10.1155/2020/9391630
Abstrakt: Among agricultural soil amendment that can enhance crop productivity and soil sustainability is biochar. Hence, two-year field experiments were conducted on a sandy loam Alfisol at Owo, southwest Nigeria, to evaluate the effects of biochar produced from hardwood on soil physical and chemical characteristics, erosion potential, and cocoyam ( Xanthosoma sagittifolium (L.) Schott) yield. The study was a 2 × 4 factorial experiment with two years (2017 and 2018) and four biochar levels (0 (control), 10, 20, and 30 t ha -1 ). The treatments were laid out in a randomized complete block design with three replications. Results indicated that biochar application significantly in both years improved yield of cocoyam and soil physical (bulk density, porosity, moisture content, mean weight diameter (MWD) of soil aggregates, dispersion ratio, and infiltration rate) and chemical (soil organic matter, pH, N, P, K, Ca, Mg, and CEC) properties and erosion resistance. Soil characteristics and cocoyam yield improved with level of biochar from 0-30 t ha -1 . When 2018 is compared with 2017 in term of soil loss, in the amended plots, 2018 reduced soil loss by 7.4, 20, and 73.5%, respectively, for 10, 20, and 30 t ha -1 biochar, whereas there was an increase of 2.7% soil loss in the control plot in 2018 compared with 2017. Therefore, application rate of 30 t ha -1 biochar is considered as suitable for severely degraded soil because this application rate efficiently improves cocoyam yield and soil properties and reduces soil loss.
Competing Interests: The authors declare that there are no conflicts of interest.
(Copyright © 2020 Aruna Olasekan Adekiya et al.)
Databáze: MEDLINE
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