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University of KwaZulu-Natal (2020)

Adoption and willingness to pay for organic fertiliser : a case of smallholder potato (solanum tuberosum L.) farmers in KwaZulu-Natal, South Africa

Bhekani, Sandile Zondo.

Titre : Adoption and willingness to pay for organic fertiliser : a case of smallholder potato (solanum tuberosum L.) farmers in KwaZulu-Natal, South Africa

Auteur : Bhekani, Sandile Zondo.

Université de soutenance : University of KwaZulu-Natal

Grade : Master of Science in Agriculture (Agricultural Economics) 2020

Résumé partiel
Potato cultivation involves intensive soil tillage throughout the cropping season, which often results in soil degradation, erosion, and leaching of nitrates. Literature suggest that efforts to produce sufficient food necessitate an increase in agricultural production per unit of inputs by adopting fertility-enhancing techniques (both organic and inorganic fertilisers) to replenish soil nutrients required by crops. However, inorganic fertiliser as a soil ameliorant is known for causing soil degradation, environmental pollution, and it is associated with escalating costs. As a result, smallholder farmers are constrained in realizing their maximum yield potential. One of the ways to boost productivity without degrading the environment is to adopt a more sustainable, low-cost, and efficient integrated nutrient management system, which also suit their socioeconomic status. Although there is sufficient advocacy in the adoption of sustainable agricultural inputs such as organic fertiliser, the economic linkage between farmers’ socioeconomic factors and adoption has not been adequately explored. Moreover, there is a dearth of empirical evidence regarding the willingness of farmers to pay a price premium for organic fertilisation of their soil. The aim of this study was to evaluate socioeconomic factors influencing the adoption and use intensity of organic fertiliser among smallholder potato farmers’ as well as to estimate their willingness to pay (WTP) a price premium for organic fertiliser. Primary data was collected from 189 smallholder farmers in three municipal areas in KwaZulu-Natal Province, South Africa, through a multi-stage sampling technique. The analytical framework incorporated descriptive statistics, double-hurdle, and ordered probit models. The double-hurdle model was used to identify the factors influencing the adoption and use intensity of organic fertiliser, under the assumption that the decision to adopt and the intensity of adoption are separate.

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