Local and scientific methods of soil fertility assessment in the tropics: a review

AFOLAYAN, Olusola Samuel

doi:10.1080/19376812.2021.1920435

Cited by 4 publications

(4 citation statements)

References 26 publications

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“…According to bulk density, presented values between 0.84 and 1.15 g/cm 3 coincide with those reported by Salamanca [48], and correspond to high levels, because they are volcanic ash-derived soils that are charactered by presented a lower MO content. The increase in DA, as a consequence of compaction, decreases macroporosity and aeration, increases mechanical resistance to penetration, affects the normal absorption of nutrients and water, impedes microbial activity, reduces infiltration, and induces changes in soil structure and functional behavior [49].…”

Section: Relationship Between Ethnoedaphological and Scientific Knowl...supporting

confidence: 87%

“…Soli is a natural, dynamic and highly complex component whose chemical, physical and biological properties interact with each other, maintaining a balance that allows the adequate development of agrobiodiverse ecosystems [1] [2]. However, as a resource, it is limited to meeting the growing demand of the population and its food needs, contributing to its degradation due to the effects of climate change and anthropic activities such as the use of unsustainable agricultural practices, causing erosion, sedimentation of rivers, loss of water sources, loss of vegetation cover and loss of biodiversity [3].…”

Section: Introductionmentioning

confidence: 99%

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Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (<i>Coffea arabica</i> L.) of Southwestern Colombia

Delgado-Vargas¹,

Leonel²,

Molina-Moreno³

et al. 2022

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Community knowledge about agricultural land and its management constitutes a complex system of wisdom, with universal principles and categories similar or complementary to those used by modern soil science. However, soil management is only recognized from the point of view of agronomy and academia, covering problems in rural areas at the time of adopting agricultural alternatives. For this reason, peasant knowledge was characterized and related to scientific knowledge, in the valuation of land properties in the coffee (Coffea arabica L.) production system. The study was carried out in four villages in the municipality of Buesaco (Nariño, Colombia), with humid pre-mountain forest conditions, an average temperature of 18˚C, annual rainfall of 1400 mm, and an altitude of 1959 m. The study was carried out in the municipality of Buesaco (Nariño, Colombia). Through field visits, priority was given to farms with coffee production systems under different types of shade. A semi-structured survey was applied to learn about the social, environmental, productive, ancestral, and cultural components, with the application of participatory methodologies allowed to learn about traditional management and practices in the soil component. The results allowed us to identify four types of production systems from coffee without shade to coffee in association with different multipurpose woody perennials and mosses. Diverse dynamics of crop and land management are presented. Several references were found to differentiate land types such as color, texture, production and fertility, being characteristics that are associated to classify soil quality

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Section: Relationship Between Ethnoedaphological and Scientific Knowl...supporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (<i>Coffea arabica</i> L.) of Southwestern Colombia

Delgado-Vargas¹,

Leonel²,

Molina-Moreno³

et al. 2022

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“…Despite this, the issues of poverty, food security and welfare especially in rural areas continue to be an important agenda in SSA and worldwide (Alem, 2015;Sisha, 2020). Several previous scientific research findings support the premise that agricultural production especially crop production and productivity have been significantly declining in recent years due to the adverse effects of climate change, declining cropland fertility, and high population pressure leading to overexploitation of agricultural land and land-use constraints (Afolayan, 2021;Mng'ong'o et al, 2021;Ortiz-Bobea et al, 2021). Thus, poverty alleviation requires adaptation by strengthening farmers' resilience.…”

Section: Overview Of Agriculture and Livestock Sectorsmentioning

confidence: 95%

Determinants of Farmers' Participation in the Agricultural Sector Support Project for the Adoption of Improved Technology in Traditional Poultry Farming: Evidence from Rural Togo

Soviadan

Enete²,

Okoye³

et al. 2023

JAEID

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The adoption of improved technologies in agriculture has been shown to improve incomes, reduce poverty and contribute to rural development in many developing nations. In Togo, the Agricultural Sector Support Project (PASA) assists smallholder farmers in the adoption of the Improved Technology in Traditional Poultry Farming (ITTPF) in rural areas as a means of increasing smallholder incomes, enhancing food security and reducing poverty. However, the adoption rate is currently below expectations, especially given the promise it holds not only from an economic perspective but also from a broad environmental sustainability viewpoint since poultry manure can be used as a necessary input in smallholder farms. In this study, we examine the factors associated with the participation of farmers in PASA for the adoption of ITTPF in Togo. Our analysis covers 400 smallholder households in the 23 districts of Togo and employs Logit model with Probit model as robustness check. We find different socio-economic constraints and enablers of participation in PASA. Particularly, level of education, household size, membership in cooperative societies, hatching rate of eggs, farm size, average annual sale of poultry and self-financing capacity were positively and significantly related to the participation of farmers in PASA. The findings are robust to alternative specifications such as Probit model. Based on the findings, we argue that participation in agricultural innovation and development programs depends on the information accessible to farmers. One medium to improve information access could be agricultural cooperatives and extension services since they provide informal education, training, and access to productive inputs for farming and marketing purposes. Our findings suggest the need for agricultural policies which promote farmer organizations such as agricultural cooperatives coupled with effective extension services to enable the adoption of improved agricultural technologies.

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“…This notwithstanding, concerns about poverty, food (in)security and welfare, particularly in rural areas, remain an imperative agenda in SSA and worldwide (Alem 2015;Sisha 2020). Previous empirical studies support the basic premise that agricultural production, particularly crop production and productivity, has significantly declined in recent years due to adverse weather conditions, a decrease in soil fertility and exponential population pressure, resulting in overexploitation of arable land, and land-use constraints (Afolayan 2021;Mng'ong'o et al 2021;Ortiz-Bobea et al 2021). To date, the literature has mainly addressed barriers to sustainable agricultural production and productivity (Hübel & Schaltegger 2021;Laurett et al 2021;Liu et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Assessing the adoption rates of improved technology in traditional poultry farming: Evidence from rural Togo

Soviadan¹,

Kubik²,

Enete³

et al. 2022

AFJARE

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The adoption of improved agricultural technologies is known to significantly improve incomes, create more wealth, alleviate poverty and contribute to rural development in many developing countries. The Government of Togo, through the National Programme for Agricultural Investment and Food Security (PNIASAN) and the Agricultural Sector Support Project (PASA), and with financial support from the World Bank and help from the Food and Agriculture Organization of the United Nations (FAO), provides assistance to smallholder farmers in improved technology adoption in traditional poultry farming (ITTPF) for wealth creation, food security and poverty alleviation. However, for any technology or emerging agricultural practices, awareness and exposure are necessary conditions for their adoption. And because these two factors are not distributed randomly in the population of potential adopters, not taking them into account will lead to estimates of population adoption rates that are not informative of the true demand for the technology, and to inconsistent estimates of the parameters of the adoption model. In this study, we evaluate the adoption rates of ITTPF among farmers in Togo. Data was collected from 400 farmers in 2014, prior to the introduction of ITTPF, and again five years later. This data was then analysed using inverse propensity score weighting and parametric estimation of adoption regression models. The results of the estimates indicate that the average treatment effect (𝐴𝑇𝐸), which represents the mean potential adoption rate of the population, is 57%, the average treatment effect on the treated (𝐴𝑇𝐸𝑇), which represents the mean potential adoption rate in the exposed subpopulation, is 60%, the population mean joint exposure and adoption rate (𝐽𝐸𝐴) is 13%, and the population selection bias (𝑃𝑆𝐵) is 3%. The sample adoption rate (𝐽𝐸𝐴) implies a population adoption gap of -47% due to a lack of exposure and adoption by a sufficient size of the population. The 𝑃𝑆𝐵 is insignificant and indicates that all the sampled farmers had an almost equal opportunity of adopting ITTPF. The study reveals that the sample adoption rate does not consistently estimate the true population adoption rate. Hence, controlling for non-exposure and selection biases is a perquisite to acquiring consistent estimates of ITTPF adoption rates. The findings indicate a relatively high supply-demand gap for ITTPF that justifies investment in its further dissemination and adoption in Togo for optimal positive impact on potential outcomes and the welfare of farmers.

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Local and scientific methods of soil fertility assessment in the tropics: a review

Cited by 4 publications

References 26 publications

Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (<i>Coffea arabica</i> L.) of Southwestern Colombia

Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (<i>Coffea arabica</i> L.) of Southwestern Colombia

Determinants of Farmers' Participation in the Agricultural Sector Support Project for the Adoption of Improved Technology in Traditional Poultry Farming: Evidence from Rural Togo

Assessing the adoption rates of improved technology in traditional poultry farming: Evidence from rural Togo

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Local and scientific methods of soil fertility assessment in the tropics: a review

Cited by 4 publications

References 26 publications

Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (&lt;i&gt;Coffea arabica&lt;/i&gt; L.) of Southwestern Colombia

Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (&lt;i&gt;Coffea arabica&lt;/i&gt; L.) of Southwestern Colombia

Determinants of Farmers' Participation in the Agricultural Sector Support Project for the Adoption of Improved Technology in Traditional Poultry Farming: Evidence from Rural Togo

Assessing the adoption rates of improved technology in traditional poultry farming: Evidence from rural Togo

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Resources

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Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (<i>Coffea arabica</i> L.) of Southwestern Colombia

Ethnoedaphology as an Integrating Process between Academy and Peasant Knowledge in the Productive System of Coffee (<i>Coffea arabica</i> L.) of Southwestern Colombia