Thesis (MScAgric)--University of Stellenbosch, 2008. / Bibliography. Also available via the Internet.

In Paraguay's rural northeast, small-scale farmers, called campesinos, are targeted by the military as sympathizers for El ejército del pueblo paraguayo (EPP), an alleged terrorist group comprising only 15 - 80 members nationwide. Since 2013, President Cartes' administration has used a threat of rural insecurity to militarize campesino settlements that are peacefully resisting displacement from foreign agroindustry. This thesis considers perspectives from campesinos both living in the countryside and imprisoned in the national penitentiary to examine effects of increased militarization. Testimonies demonstrate that a discourse of rural terrorism serves as a legitimizing mechanism to criminalize and eliminate campesino movements as obstacles to agroindustrial expansion.

Thesis (M. A. (Sociology)) -- University of Limpopo, 2017 / The study explored Mutoko community members’ perceptions of climate change and its impact on subsistence farming. Mutoko is a rural community situated in the eastern part of Zimbabwe. Focus group discussions were conducted to explore perceptions of climate change and its impacts on subsistence farming. The study findings show that the primary source of food is subsistence farming. The main crop grown in Mutoko is maize, followed by ground nuts (peanuts), and indigenous vegetables. Maize, ground nuts, sunflowers (for seed), sorghum and millet are grown for household consumption. The study reports community members’ perceptions and views of changes in the local natural environment. The changes are increased temperature and scarcity of rain. Observable impacts of these changes are decreased crop yields in times of drought. The findings are supported by observation that Zimbabwe lies in a semi-arid region with limited and unreliable rainfall patterns and temperature variations. Rainfall exhibits considerable spatial and temporal variability. Generally, the impact of climate change on subsistence farming was the major concern among the participants. Though the study was not aimed at documenting adaptation measures taken to lessen the negative impacts of increased temperature and rainfall scarcity on crop production, the study shows that adaptive measures have been developed and used to adapt and cope with climate change. Community members are adapting to the impacts of increased temperature and scarcity of rain through their culturally informed mechanisms. The mechanisms include change of crops, use of manure to improve soil structure and mulching. It is concluded that the impact of climate change on subsistence farming is real and is negatively affecting food security in the study area. Farmers gave different views on the following; knowledge about climate variations, changes in environmental conditions, changes in temperature patterns and changes in rainfall patterns. / Centre of Indigenous Knowledge Systems (CIKS) and National Research Foundation (NRF)

Thesis (M.Sc. (Agriculture)) --University of Limpopo (Turfloop Campus), 2008 / A large number of emerging farmers in South Africa is involved in subsistence agriculture as a result of poor resource endowment or due to other constraints. Relatively few agricultural products from emerging farmers reach the formal agricultural market. Livestock production is common among emerging farmers and a large proportion of the national livestock is in the hands of the rural poor. Horticultural crops are generally perishable and require immediate disposal, thus implying that the farmers who produce horticultural crops do so with intention to sell their products. Most studies tend to group farmers regardless of their line of production. Only few studies have attempted to investigate the socioeconomic characteristics of farmers, differentiating the commodities that they produce. The objective of this study is to identify and compare the socioeconomic characteristics that determine the farm income of the emerging livestock farmers and horticultural farmers in South Africa. Such an analysis would allow more targeted policy responses for different groups of emerging farmers. The data used in this study consisted of 202 livestock farmers and 126 horticultural farmers selected through quota sample covering all nine provinces in South Africa. The data were collected by the Development Bank of Southern Africa in 2005. Descriptive Analysis and Discriminant Analysis are applied to determine the factors that matter the most in determining incomes of livestock and horticultural farmers. Farm iv income is used as the dependent variable, and fourteen independent variables were identified. The factors that matter the most in determining livestock farmers’ income are, namely access to finance, farm size, age of the household head, membership to farmer organizations and government support. The factors that matter most in determining horticultural farmer’s income are namely farm size, age of the household head, land type (land ownership), and extension services. The results of this study showed that access to land and age of the household head matter the most to both livestock and horticultural farmers. The study found that poor access to land is one of the major constraints facing emerging farmers in South Africa. Land is also one of the factors that may determine the amount of credit the emerging farmers can obtain and, if farmers produce on communal land, it becomes harder to obtain credit. Memberships to farmer’s organisations, government support and access to finance are characteristics that matter the most to livestock and do not seem to matter that much to horticultural farmers. Farmer organisations often lobby for collective provision of appropriate and needed services for their membership. The services that are often lobbied for are services such as extension, marketing and provision of training to empower women and young people so as to enable them to participate fully in farming activities. The results of this study show that there are differences in socio-economic characteristics that matter the most in determining farm income for livestock and horticulture farmers. v Horticulture farmers should be given much support to improve access to get enough land and training while in livestock farming assistance focus should be on access to finance and support services. vi

Diss. (sammanfattning). Uppsala : Sveriges lantbruksuniv., 2003. / Härtill 4 uppsatser.

In Mozambique, 80 per cent of the people rely on farming for their livelihood. The majority of them are small-scale and subsistence farmers. In spite of high GDP and agricultural growth rates, the majority of Mozambicans in rural areas remain below the poverty line.  Even though many subsistence farmers in Ribáuè District own animals, programmes and policies for development are aimed at commercialization in medium- and large-scale sector animal farming. We found a lack of attention given to family sector animal breeding as a development factor in Ribáuè. Over the course of five weeks, we engaged in an ethnographically inspired, qualitative field study in Ribáuè District, the city of Nampula and the capital Maputo. Our gender and animal advocacy viewpoints allowed us to look at development as a holistic concept and determine effects beyond the immediately visible. Applying the Sustainable Rural Livelihoods approach, we identified a serious threat to the farmers’ livelihoods both in the short- and long-term, which we believe needs to receive much greater attention in policy-making. We found that animal breeding fulfils diverse functions, such as diversification of assets and diet, and generating and increasing resilience. It is crucial as mid-term investment and as a live bank. However, it is hugely insecure in all of these functions due to recurring shocks. Animal health issues are a major limitation for farmers. Therefore, animal breeding has little development scope for subsistence farmers at the moment, and is further diminished by commercialization plans for a minority of farmers, which overlook the complexity of the farming system and may negatively impact regional markets.  Development through intensive animal breeding reflects a dangerous short-term thinking. Sustainability and an important livelihood strategy for many are sacrificed for economic development of a few while exploitative systems are reproduced. / Em Moçambique, oitenta por cento da população depende da agricultura para a sua subsistência; sendo que a maioria desse montante é composto por pequenos agricultores. Apesar de altas no PIB e taxa de crescimento agrícola, a maioria dos moçambicanos em áreas rurais permanece abaixo da linha de pobreza. Mesmo que muitos agricultores de subsistência no Distrito Ribáuè – localizada na cidade de Nampula, capital Maputo – possuam seus próprios animais e façam parte de programas de desenvolvimento, políticas de apoio e suporte à comercialização costumam ser destinadas a setores rurais de médio e grande porte. Durante o desenvolvimento deste trabalho, identificamos falta de assistência à criação familiar de animais para o desenvolvimento da região de Ribáuè. Ao longo de cinco semanas, estivemos envolvidos em um estudo de campo qualitativo – com inspiração etnográfica – nesta região.  Nossa tese, baseada na análise de políticas de questão de gênero e animais nos permitiu um olhar para o desenvolvimento desta população com um conceito holístico, determinando efeitos para além do imediatamente visível. Ao aplicar a “Abordagem Sustentável dos Modos de Vida Rurais”, identificamos uma séria ameaça para a subsistência dos agricultores em curto e longo prazo – o que acreditamos necessitar de maior atenção na formulação de políticas públicas. Descobrimos que a criação de animais cumpre diversas funções sociais, tais como a diversificação de ativos financeiros e dieta, gerando e aumentando no poder de resiliência da população estudada. Para isso se manter, percebemos ser fundamental que a população invista em médio prazo, usando seus animais como recurso financeiro. Porém, recorrentes revezes costumam limitar essa iniciativa. Problemas de saúde em animais, por exemplo, são uma grande limitação para os agricultores. Por isso, criação de animais tem pouco espaço no desenvolvimento de agricultores de subsistência e é ainda mais reduzido por causa dos planos de comercialização de uma minoria de agricultores (por causa da complexidade do sistema de produção e a fragilidade dos mercados regionais). Desenvolvimento através da criação intensiva de animais ainda reflete um pensamento perigoso em curto prazo. Sustentabilidade e importantes estratégias de sobrevivência são sacrificadas para o desenvolvimento de curto prazo de uma minoria, reproduzindo a exploração de sistemas.

MSCAGR / Department of Agricultural Economics and Agribusiness / The study was conducted in the Mutale Local Municipality, Vhembe District of South Africa on a proportionally randomly selected sample of 153 smallholder farmers after clustering them into agricultural zones and commodity groupings (vegetables under irrigation, dryland maize and citrus fruit farming). Data were collected through a structured qualitative and quantitative questionnaire that was administered face-to-face to respondents and captured into the SPSS Version 24 computer program. The same program was used to analyse data through cross tabulations and logistic regression modelling. In particular, the study focussed on the impact of socio-economic characteristics, challenges that farmers face and views of extension officers on transforming subsistence farmers towards commercialization. The most critical findings of the study were dominance of women, lower youth participation, poor training and educational achievements, non-membership to agricultural organizations, low income levels and dependence on social grants and lack of credit as factors that could impact on farmers’ transformation process. Farmers’ challenges that could impact on transformation were identified as lack of production inputs, water, access to market and supportive infrastructure such as mechanization. However, the views of extension officers regarding transformation centred mostly around insufficient land holdings, climate change and financial support. In contrast to farmers, extension officers viewed market access as a minor challenge. The study recommended for development of strategies that could increase youth participation in farming such as start-up credit, reduction of dependence on social grants by adopting strategies that could increase productivity and thus income, exposure to funding opportunities through training and increased involvement of institutions of higher learning into smallholder farming activities.

Magister Philosophiae - MPhil / The purpose of this study is to investigate determinants of land tenure, agricultural activities involvement, and the use of agricultural products and stock keeping among small-scale farmers across all nine provinces of South Africa. Little is known regarding tenure status that households typically use to access land across nine provinces of South Africa. The characteristics of household heads in small-scale farming still under-researched; and socio-demographic characteristics for household subsistence still scanty in the literature. GHS between 2015 and 2018 from StatsSA was employed.

The parasitic weeds belonging to the genus Striga are among the world's most tenacious, prolific and destructive agricultural pests. Crop loss estimates due to Striga infestations can reach 100 percent. Furthermore, the weeds' affinity for low-fertility soils and low rainfall means that those farming the most marginal lands are most severely affected. Nonetheless, subsistence farmer have yet to adopt seemingly beneficial control practices to any appreciable degree. This paper develops a bio-economic model capable of identifying: (1) affordable, effective Striga control practices consistent with the resource constraints of subsistence farmers; and (2) barriers to the adoption of those practices. The model is comprised of two components: a biological component modeling Striga population dynamics, and an economic component representing the production opportunity set, resource constraints, and price parameters farmers face. The model is applied to two zones in Northwestern Mali, Sirakorola and Mourdiah, and solved using non-linear, dynamic programming. Data collected by the USAID IPM-CRSP/Mali project are used to specify the economic parameters of the model. A new technique for estimating the lower bound of a farmer's production planning horizon is also developed and employed in the application of the model to Sirakorola and Mourdiah. The results of several model scenarios indicate that the availability of information regarding the efficacy of Striga control practices is a primary barrier to their adoption by subsistence farmers. The movement of Striga seed between fields, however, is of limited importance. The "optimal control practices" identified by the model depend on the size and demographic composition of the production unit (UP), the zone in which the UP is located, and the cash budget available to the UP. At low budget levels, the model suggests planting millet without fertilizer at a high density in Sirakorola and a low density in Mourdiah. At high budget levels, the model suggests planting millet at a high density in both zones while applying urea. The benefits of adopting the optimal set of practices are presented in both nutritional and financial terms, and can reach as much as a ten-fold increase in the nutritional content of and financial returns to a harvest. / Ph. D.

Thesis (MScAgric (Plant Pathology)--Stellenbosch University, 2008. Includes bibliography.summary,list of figures and appendices. / ENGLISH ABSTRACT: Fusarium spp. and Aspergillus spp. are toxin-producing fungi associated with maize and groundnut. Fusarium verticillioides produces fumonisins in maize, and Aspergillus flavus produces aflatoxins in maize and groundnut kernels. Both toxins are responsible for carcinogenesis in humans and animals. Contamination of maize and groundnut with mycotoxins is often most severe in rural areas where subsistence farmers are unaware of their existence and follow agricultural practices that might contribute to their production. A questionnaire was, therefore, compiled to investigate agricultural decisions in rural areas that may influence mycotoxin contamination of crops. During 2006 and 2007, maize and groundnut samples were collected in the Eastern Cape, KwaZulu-Natal (KZN), Limpopo, and Mpumalanga provinces. Mycotoxin levels were quantified using the ELISA technique, and the incidence of Fusarium spp. in maize grain was determined by plating maize kernels out on Fusarium selective medium. Fumonisin-producing Fusarium spp. were also quantified using real-time PCR (TaqMan). The incidence of A. flavus and A. parasiticus in groundnut was determined by plating out kernels on potato dextrose agar. Fumonisin contamination levels in maize samples ranged from 0-21.8 parts per million (ppm) and aflatoxin levels ranged from 0- 49 parts per billion (ppb), depending on the region where samples were collected. Aflatoxin levels in groundnut ranged from 0-160.1 ppb. Fusarium verticillioides was the most common Fusarium sp. in maize followed by F. subglutinans and F. proliferatum, respectively. Regression analyses showed a positive correlation between fumonisin-producing Fusarium species when determined by real-time PCR and fumonisin concentration (r2=0.866). Regression analyses further showed a highly significant positive correlation between A. flavus and aflatoxin contamination (r2=0.10235). Samples from northern KZN contained levels of mycotoxins that were far in excess of the maximum levels set by the Food and Drug Administration in the USA. In South Africa there are currently no regulations with regard to the maximum allowable levels of fumonisin in human food. The high incidence of mycotoxin contamination of human food in subsistence farming systems indicates the need for awareness programmes and further research. / AFRIKAANSE OPSOMMING: Fusarium spp. en Aspergillus spp. is toksien-produserende fungi wat met mielies en grondbone geassosieer word. Fusarium verticillioides produseer fumonisiene in mielies, terwyl, A. flavus aflatoksiene in mielies en grondbone produseer. Beide toksiene is karsinogenies vir mens en dier. Die vlakke van toksien-kontaminasie is meestal die ergste in landelike gebiede waar bestaansboere onbewus is daarvan. Landboupraktyke wat deur die boere toegepas word vererger dikwels die probleem. ‘n Vraelys is saamgestel om vas te stel watter landboupraktyke in landelike gebiede toegepas word, en hoe dit toksien-kontaminasie in mielies en grondbone beinvloed. In die 2006 en 2007 seisoene is mielie- en grondboonmonsters in Kwa-Zulu-Natal (KZN), die Oos Kaap, Limpopo en die Mpumalanga provinsie versamel. Toksien-vlakke is gekwantifiseer deur gebruik te maak van die ELISA tegniek. Die insidensie van Fusarium spp. in mielies was bepaal deur pitte op Fusariumselektiewe agar uit te plaat. Fumonisien-produserende Fusarium spp. was ook gekwantifiseer deur van kwantitatiewe PCR (TaqMan) gebruik te maak. Die voorkoms van A. flavus en A. parasiticus is bepaal deurdat mielie- en grondboonpitte op aartappel dekstrose agar uit te plaat. Fumonisien-vlakke in die mieliemonsters het gewissel van 0-21.8 dele per miljoen (dpm), terwyl aflatoksienvlakke gewissel het van 0-49 dele per biljoen (dpb), afhangende van die omgewing waar monsters versamel is. Aflatoksien vlakke in die grondboonmonsters het gewissel van 0-160.1 dpb. Fusarium verticillioides is die meeste vanuit mielies geisoleer, gevolg deur F. subglutinans en F. proliferatum. Regressie analises het ‘n positiewe korrelasie tussen fumonisien konsentrasie en fumonisien-produserende spp. aangedui waar daar gebruik gemaak is van die kwantitatiewe PCR (r2= 0.866). Regressie analises het ‘n hoogs betekenisvolle positiewe korrelasie getoon tussen A. flavus en aflatoksien kontaminasie (r2=0.10). Monsters van noordelike KZN het toksienvlakke bevat ver bokant die maksimum toelaatbare vlakke is soos bepaal deur die Food en Drug Administrasie in die Verenigde State van Amerika. Daar is tans geen regulasies in Suid Afrika wat die maksimum toelaatbare vlakke van fumonisiene in voedsel vir menslike gebruik bepaal nie. Die hoë voorkoms van mikotoksien-kontaminasie in bestaansboer-sisteme, dui die belangrikheid van verdere navorsing en bewusmakings-progamme aan.