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The effect of minimum tillage and animal manure on maize yields and soil organic carbon in sub ‐Saharan Africa: A meta-analysis

Githongo, M. W.; Kiboi, M. N.; Ngetich, K. F.; Musafiri, C. M.; Muriuki, A. and Fliessbach, A. (2021) The effect of minimum tillage and animal manure on maize yields and soil organic carbon in sub ‐Saharan Africa: A meta-analysis. Environmental Challenges, 5 (100340), pp. 1-9.

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Document available online at: https://www.sciencedirect.com/science/article/pii/S2667010021003188


Summary

In sub-Saharan Africa (SSA), diminishing soil fertility has been experienced from continuous cropping and low nutrient replacement. Organic inputs and minimum tillage are proposed to increase the declining fertility of the soil to increase crop growth and yields. We reviewed animal manure and minimum tillage use on maize yields and soil organic carbon (SOC) in SSA. This involved a meta-analysis on the influence of minimum tillage and animal manure on maize grain yields and SOC. The peer-reviewed publications on animal manure and minimum tillage influence on maize yields and SOC were selected from articles that contained one or multiples of the following keywords, 'tillage, minimum tillage, conventional tillage, organic, manure, animal manure' using ScienceDirect database. Reported data on maize yields and soil organic carbon were extracted from figures, tables, and text, of the selected studies. These studies were analyzed using R, and results were presented in a forest plot. Minimum tillage had no significant influence on maize yields and soil organic carbon. Animal manure significantly improved maize yields and soil organic carbon. The study underscored the importance of animal manure in improving maize yields and soil organic carbon in SSA. Animal manure application in maize cropping systems is plausible to increase maize yields and soil organic carbon in SSA.


EPrint Type:Journal paper
Keywords:carbon, tillage, soil fertility, Africa, Abacus, FiBL10082, Orm4Soil
Agrovoc keywords:
Language
Value
URI
English
carbon
http://aims.fao.org/aos/agrovoc/c_1301
English
tillage
http://aims.fao.org/aos/agrovoc/c_7771
English
soil fertility
http://aims.fao.org/aos/agrovoc/c_7170
Subjects: Soil > Soil quality
Crop husbandry > Soil tillage
"Organics" in general > Countries and regions > Africa
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > International > Regions > Africa
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil > Tillage > Reduced Tillage
DOI:10.1016/j.envc.2021.100340
Related Links:https://www.fibl.org/en/themes/projectdatabase/projectitem/project/965, https://www.orm4soil.net/orm-home.html
Deposited By: Forschungsinstitut für biologischen Landbau, FiBL
ID Code:43168
Deposited On:05 Jan 2022 14:07
Last Modified:05 Jan 2022 14:07
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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