Abstract

The effects and applicability of conservation agriculture in different farming contexts are highly contested. Yet, there has been limited attempt to adapt the conservation agriculture system to the conditions of resource-poor farmers, focusing primarily on the existing farmers’ capacity and objective to practice conservation agriculture. The study assessed the factors that influence adoption and dis-adoption of conservation agriculture as well as the impact and identified prospective components for successfully implementing it in rain-fed agriculture in Angonia (Mozambique). A structured questionnaire was randomly administered to 192 conservation agriculture farmers to collect data through a multistage sampling process. The study employed descriptive statistics, multinomial logistic regression to examine possible causal relationships among variables and literature review. The result shows that farmers are motivated to use conservation agriculture because of the increased yield, soil fertility and improved soil moisture. Lack of herbicides and reduced tillage equipment are two major challenges to implementing conservation agriculture. Regression analysis reveals that farmers would likely use minimum soil disturbance over other approaches. The study then proposes the appropriate use of herbicides to address the weed control issue; the use of fertilisers to generate immediate outcomes and enough vegetative cover; and the design of locally available and affordable reduced tillage equipment to accommodate resource-poor farmers. The government and stakeholders should work together to address market imperfections, including the establishment of agricultural input facilities. The study identifies the contextualised conditions required for designing and implementing conservation agriculture in pro-poor farming systems. Key words: Adoption, factors, constraints, yield impact, herbicides, fertilisers.

Highlights

  • In regard to soil fertility, farmers reported some positive and differences associated with the changes in soil texture experienced on their farms

  • Similar studies have found that when Conservation agriculture (CA) is properly practiced, including agronomic practice management, it leads to increased income reliability and food security as a result of soil improvement (Ngoma et al, 2021)

  • The study advocates greater flexibility in the use of CA, taking into account the positive and negative factors that influence the use of CA in rain-fed agriculture, in Angonia

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Summary

Introduction

Farmers have embraced CA because it meets their needs, especially in productivity, profitability and enhanced environmental outcomes (Anghinoni et al, 2021). For this reason, CA is claimed to increase yields, reduce labour requirements and improve soil fertility. In some parts of Africa, results showed an increase in yield in Zambia (Ngoma et al, 2021), Malawi (Bouwman et al, 2021), and Tanzania (Kimaro et al, 2016). Increased yield has not been unequivocally confirmed throughout sub-Saharan Africa (SSA)

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