Thesis (Ph.D. (Agricultural Economics)) -- University of Limpopo, 2015 / Various types of management practices/institutional arrangements of the irrigation schemes exist in the world. According to the principles delineated in literatures, these irrigation schemes are categorized in terms of their management practices. The study was designed to compare the level of technical efficiency of farmers at different management practices of the irrigation schemes (i.e. integrated, specialised and multipurpose water management practices of the irrigation schemes) in Limpopo Province. Data were collected using a structured questionnaire which was administered on 200 farmers at different irrigation schemes. Stochastic frontier production function of Cobb-Douglas type was employed to analyse the data and thereby ascertain the level of technical efficiency and its determinants. The results indicated the mean technical efficiency of 0.74, 0.72 and 0.76 for the integrated, specialised and multipurpose water management practices of the irrigation schemes respectively which implied that, there is a greater scope to increase maize, tomato, onion and spinach production with the current technology and resources available at the irrigation schemes. The most important contributors in maize, tomato, onion and spinach production efficiencies were seed, fertilizer, capital and land. Thus an appropriate amount of seed, fertilizer, capital and land could increase the productivity of maize, tomato, onion and spinach. The results further revealed that education level of farmers, age of the farmers and land size were negatively significant toward the technical inefficiency of farmers at different irrigation schemes, which imply that an increase in any of the three variables will reduce the inefficiency and enhance the efficiency. While the family size of the farmer was positively significant, which implies that the bigger the family size, the higher the inefficiency farmers would become for the production of maize, tomato, onion and spinach. Gender and income level of the farmers at different irrigation schemes were revealed to be insignificant toward the inefficiency. The institutional arrangements or the management practice of the irrigation schemes showed slight differences in affecting the efficiency of farmers at different irrigation schemes. Policies designed to educate famers at different irrigation schemes through proper agricultural extension services could have a great impact in increasing the level of efficiency and hence maize, tomato, onion and spinach productivities. The Department of Agriculture should allocate more funds to strengthening the extension directorate and expanding the delivery of extension services to farmers at different irrigation schemes. Irrigation schemes were established in order to insure food security, alleviate poverty, job creation, among others. Therefore, it is of paramount importance for the government of South Africa in collaboration with the private sector to revitalise the irrigation schemes in Limpopo Province irrespective of the institutional arrangements. It is of vital concern for the policy makers to focus on the benefits of economies of scale in agricultural farming system. Therefore, land size should be increased for the farmers in integrated water management practice of the irrigation schemes to an optimum level in order for them to improve the level of technical efficiency.

Thesis (Ph.D. Agriculture. (Agricultural Economics)) -- University of Limpopo, 2022 / Many researchers in different parts of the world have advocated the use of irrigation water to reduce levels of poverty, especially among rural households. This is made possible through the development of irrigation schemes in these areas and giving the necessary support to these farmers. If this is done sufficiently, irrigation schemes` participants are sure to realise improved livelihoods and poverty reduction. However, different communities are faced with different challenges and are subjected to rules and norms applied in their respective communities. On one hand, farmers are individuals who also have personal beliefs and characteristics that may be critical in determining the success of their irrigation schemes. On the other hand, certain characteristics (e.g., unequal distribution of water and land) can be inherited as challenges by farmers in such communities, making it difficult to overcome and thus posing threats to the success of irrigation schemes. A purposive-multistage technique together with a simple random sampling were used to sample 300 smallholder farmers from the Vhembe and Sekhukhune districts of Limpopo Province. An analysis of data was done using a combination of analytic techniques such as the Binomial Logit, Principal Component Analysis, Multiple Regression Analysis, Poverty Indices and the Women Empowerment Agriculture Index. The latter was employed to examine whether or not there are efforts by the irrigation schemes to empower women. The main aim was to analyse the contribution and impact that irrigations schemes have on poverty reduction among smallholder farmers. There was also a need to consider the role that positive psychological capital may play in uplifting the hope, confidence, resilience and optimism by farmers in their irrigation schemes. The results revealed that women’s participation was high (58%) in the irrigation schemes as compared to men. However, this did not mean that women were empowered automatically. After administering the Women Empowerment Agriculture Index, it was found that women are actually disempowered in three (out of five) indicators that were used as a measure of empowerment. Meanwhile, most farmers who used irrigation, saw their livelihoods improve and their poverty status improve too. Irrigation was able to increase their yields, incomes, employment, and other household assets. It was again proven that positive psychological capital played a significant role in reducing poverty. However, factors such as lack of capital assets, social grants, illiteracy, old age, lack of vocational training and risk aversion in some instances contributed to poverty. In order to enhance the livelihoods of smallholder farmers, the government and other relevant bodies should see to it that agricultural extension services are improved and include vocational training for these farmers together with the provision of market information and business training. This may help farmers realise the importance of farming as a business and not relying on government for everything they need. A larger share of income for most farmers came from social grants and remittances. This is likely to have a negative impact on the success of irrigation schemes. Therefore, farmers need to be trained for self-reliance. The need to promote women’s participation in decision-making for water management and also suggests ways in which women’s access to water can be improved through equitable development cannot be overemphasised. There is also a need to conduct a study on the measurement and role of psychological capital in rural livelihoods using other methods such as revealed preference approach, experimental economics and behavioural economics.