MEd / Department of Education Management

Institute for Rural Development / MRDV

MSCAGR (Soil Science) / Department of Soil Science / The application of organic manures as alternatives to reduce the use of mineral fertilizers is considered a good agricultural practice for smallholder farmers. However, the effect of organic manure on soil properties and crop yield depends upon its application rate and chemical composition. Climatic seasonal variability within the study area could adversely affect crop production. The amount of rainfall and temperature are among the most important factors that determines crop production. This field experiment was carried out during the 2013/2014 and 2014/2015 cropping seasons at the University of Venda experimental farm which is located about 2 km west of Thohoyandou town in the Vhembe District, Limpopo Province. The main objective of this study was to determine the effect of three types of organic manure (cattle, poultry and their combination (1:1)) on yield and water use efficiency of sunflower (Helianthus annuus L.) and selected soil physical and chemical properties under rainfed conditions. The experiment was a randomized complete block design (RCBD) with four treatments and four replications (control (C0), cattle manure (CM), poultry manure (PM) and their combination (CM + PM)). All organic manures were applied 21 days before planting at a rate equivalent to 20 t ha-1. The manures were incorporated in the soil using a hoe to an approximate depth of 10 cm. Crop water use (WU) and water use efficiency (WUE) were determined using the water balance equation. Rainfall was measured using three standard rain gauges installed on the experimental site. Change in soil moisture storage was determined by monitoring soil moisture content weekly using a neutron water meter (NWM), calibrated on the experimental site. Data on sunflower dry matter and leaf area index (LAI) was collected at flower bud stage, flowering stage and at grain maturity stage. Plant height and stem girth were also determined at the same developmental stages. Grain yield was measured at physiological maturity. xv Analysis of variance (ANOVA) was carried out using SPSS software. Due to seasonal variability encountered during the two cropping seasons, particularly in terms of rainfall, further analysis of two factors (viz. cropping season and organic manure) and their interaction were performed. The differences between treatment means were separated using the least significant differences (LSD) procedure. The results showed that organic manure application had no significant effect on soil physical properties. Poultry manure application resulted in lowest bulk density (BD) with a decrease of 32% in the top layer (0 – 20 cm) compared to control. Cattle manure + PM and CM application decreased BD in the top layer by 14% and 9% compared to control, respectively. Poultry manure and CM recorded almost the highest similar stable aggregate fractions at all soil depths. Poultry manure recorded the highest final infiltration rate and cumulative infiltration followed by CM and CM + PM. The control treatment retained the highest mean water content compared to other treatments at both field capacity (FC) and wilting point (WP). Cattle manure + PM and PM recorded the least mean water content among others at FC and WP respectively. This could be as a result of increased micropores by organic manure application on a clayey soil which allowed an ease movement of water that control treatment which had no manure application. Total N, Ca, and Zn were significantly different between treatments in the first cropping season while K, Na, CEC and Zn were significantly different in second cropping season. pH recorded no significant difference in all treatments in both cropping seasons. CM + PM recorded the highest OC at top layer (0 – 20 cm) in both cropping seasons compared to other treatments. Dry matter yield and LAI at flower bud, flowering and maturity stages increased with the application of different manures compared to the C0. Organic manure application showed a significant (p<0.05) effect on dry matter at all growth stages in the second cropping season. Organic manure had a significant effect on LAI only at flower bud stage of the first cropping season, with PM and CM + PM recording the highest similar value of 1.31. The manure xvi application also showed a significant (P<0.05) effect on plant height and stem girth at all growing stages in the second cropping season, whereas in the first cropping season the significant effect was only in the flower bud stage for both parameters. Grain yield was significantly affected by the manure application in the second cropping season. Manure application in the second cropping season resulted in an increase in the grain yield compared to the first cropping season, except for PM where the grain yield decreased significantly by 167.92% from the first cropping season. Then high grain yield in the second cropping season could be as a result of high WUE reported. The manure application had a significant effect (p<0.05) on water use efficiency (WUE) in the second cropping season. The WUE recorded the highest values under CM and CM + PM treatments in second cropping season than in first cropping season, while PM recorded the highest WUE value in the first cropping season. Generally, organic manures used obtained higher grain yield and WUE compared to control. Keywords: Organic manure, smallholder farmers, sunflower and water use efficiency

MESC / Department of Hydrology and Water Resources / Wetlands are known of their pollution reduction characteristics due to their flat topography and dense vegetation which capture pollutants on the settling sediments. Three processes take place on the captured pollutants in the sediments, the physical, chemical and biological processes, which facilitate the removal of pollutants from the wetlands. This research was carried out in order to assess the Water Quality of wetland downstream of Makhado oxidation ponds and its potential effects on Irrigation Waters by determining the Physical-chemical parameters (pH, Dissolved Oxygen, temperature, electrical conductivity and turbidity); the nutrient levels (Nitrates, phosphates, nitrites, bromide) and heavy metals. The water samples were collected from the effluent discharge of Makhado oxidation ponds (upstream), the middle section of the wetland (midstream) and downstream of the wetland. The climate data for the study was also used assess the contribution to variation in the physical-chemical parameters during their passage through the wetland. The use of waters in the wetland by subsistence farmer’s was also assessed to determine their farmer’s perception on wastewater reuse, sustainability, water quality, health hazards and crop yield. At the discharge and midstream point, the physical parameters tested were found to be mostly outside the target water quality range of irrigation water set out by DWAF but are within the DWAF guidelines for discharge of wastewater. The exceptions were with total dissolved solids which were higher than 25 mg/l guideline value of the said standards. The anions were analysed by Ion chromatography and showed spatial variation in content and seasonality. The nutrients (nitrates, nitrites and phosphates) and chloride were higher than the DWAF guidelines for discharge of wastewater. The heavy metal content in the wetland was analysed by ICP-OES and varied throughout the wetland. The following metals were reduced during their passage in wetland and were within DWAF guidelines: zinc, lead, cadmium and total chromium. Iron and manganese were reduced during the drier season but were above the DWAF guideline values during the wet season. Also the metal contents in the wetland are out of the target water quality range of the same standards bringing forth the risks of toxicity in the wetland. The anion analysis also suggests that the wetland is becoming a nutrient rich environment bringing forth risks of eutrophication. Nitrite concentrations did not conform to the South African viii Water Guidelines on target water quality ranges for irrigation water. Farmers have expressed a positive opinion on wastewater use for irrigation since there are loads of nutrients. The presence of nutrients in wetland may contribute to development of harmful algal blooms.

MSCAGR (Agricultural Economics) / Department of Agricultural Economics / This research aimed to assess the profitability of sweet potato production enterprises. The focus areas were on: determining differences in profitability of different sweet potato enterprises located in different villages; identifying factors that affect the profitability of sweet potato enterprises; determining differences in the sweet potato markets; and identifying marketing channels utilised by sweet potato enterprises. The study was carried out in 8 villages in Makhado and Thulamela local municipalities of the Vhembe district of Limpopo province. There were 78 sweet potato farmers identified and interviewed as respondents in the study. A gross margin analysis model was used to calculate the profitability of sweet potato enterprises, while a multiple regression model was adopted to analyse factors that affect profitability of sweet potato enterprises. The study revealed the domination of females in sweet potato production, wherein 69.2% of the respondents were females. Furthermore, the study revealed that 16.7% of the respondents were illiterate, 24% of the respondents had never received any form of agricultural training. The findings of the study revealed that sweet potato production is a viable and profitable enterprise in the study area. Farmers recorded an average gross margin of R11 329.94 per ha. Furthermore, labour cost and fertilizer cost accounted for the highest costs incurred in production contributing 45% and 32% respectively to total costs. The results of the study further revealed that six variables were statistically significant to profitability. Occupation status, farming experience, unpaid family members, and labour cost were statistically significant to profitability at the 1% level of significance; whereas tractor hire cost and chemical cost were statistically significant to profitability at the 5% level of significance. The study recommends that stakeholders involved in agriculture and community development should attend to issues such agro-processing trainings and extension services offered to the farmers in the Vhembe district.

MA (Anthropolgy) / Centre for African Studies / Commemorative structures like walls of remembrance, statues and monuments are representatives of social narratives and they usually represent the current political order. They also represent heroes deemed important by the current political regime. These structures, together with the corresponding narrative, can either be of local, regional or national importance. Nghunghunyani was a Gaza Nguni king who reigned in southern Mozambique in 19th century. His statue in the town of Giyani is a case in point. Nghunghunyani fought wars and entered into negotiations with the Portuguese in southern Mozambique in order to keep the land of his forefathers. However, the erection of his statue sparked controversy and has been met with resentment and rejection among the people of the region where it has been placed. This study aimed to elucidate the reasons behind the resentment and the rejection of the statue. This was done by examining the history of the homeland of Gazankulu and of the clans of the region in order to understand the ethnic enclaves of the Tsonga and the Shangaan, and the political undercurrents involved in the erection of a statue which is undeniably of national significance, but problematic locally and regionally. As heroes are imbedded in collective memory and collective narratives, the theory of collective memory following on Maurice Halbwachs was used. The discussion on ethnicity was directed by the ethnicity theories of Webber and Geertz. The interview was employed as the tool for collecting data, which elucidated that Nghunghunyani is not part of their founding heroes and that their praise poems do not include this historical figure. It appears that in as much as Nghunghunyani is a regional hero, his representation in Giyani is clouding the real history of the region and the debates are clouding the hero that King Nghunghunyani was. The study unveiled that Nghunghunyani is a nationally celebrated hero who cannot be contextualised positively in the local context amongst Tsonga speaking tribes and chiefdoms due to the nature of the hostile historical relationship between the ancestors of these groups and the Gaza Nguni.

MAdmin / Department of Public and Development Administration / This study focused on The Integrated Development Plan as a strategy to empower informal traders using Thohoyandou as the case study. The study was conducted at Thulamela Municipality and at the informal markets of Thohoyandou. The researcher used two population groups; the municipal officials and the informal traders. The researcher made use of both qualitative and quantitative methods as the study was explorative in nature; 50 informal traders were sampled and took part in the study and on the other hand, 20 municipal officials were sampled and participated in the study. The researcher made use a pilot survey to two groups of population to test the efficacy of the interviews schedule as well the questionnaires as data collection instruments. SPSS and Microsoft excel were used as tools for data analysis. The results show that Thulamela Municipality’s IDP strategy is not doing enough for the informal markets in Thohoyandou. However, respondents indicated that shortcomings such as Limited Budget affect the success of IDP on informal trading. Initiatives such as the provision of loans, workshops, training and promotion of LED programmes were indicated as having been put in place in an effort to empower informal traders, although a number of informal traders in the Thohoyandou area are forever increasing, through urbanisation and migration which pose serious control challenges to the municipality. To manage informal trading in Thohoyandou, the researcher recommended that there could be: preferences on trading fee/levies; provision of services and infrastructures to informal traders; enhancing public participation; limiting overtrading, integrated management planning, policy formulations and that future researchers can be more specific on aspects such as: situation of foreign traders; constitutionality of by-laws and trading at intersections.

MPH / Department of Public Health / Background: South Africa presently has a very high HIV burden. It has adopted the UNAIDS “90-90-90 targets” to curb its HIV burden. This target aims to attain sustained viral suppression in 90% of all persons receiving antiretroviral therapy. This is supported by several studies. Studies to observe if patients are achieving and sustaining viral suppression in Limpopo, South Africa, are few. Objective: To investigate the viral and immunologic responses of patients in Vhembe District to highly active antiretroviral therapy (HAART) between the 1st of January 2004 and 31st of July 2016. Methodology: This was a retrospective medical record review conducted in Vhembe District in rural Limpopo. It included the medical records of 1247 individuals from Thohoyandou Community Health Centre. Analysis was done using SPSS 24.0. To model the factors associated with virologic and immunologic responses, each independent variable was tested for association with the dependent variable (viral suppression and CD4 count increase of ≥ 50 cells/μL from baseline to 6 months). The independent variables included age, year of initiation, gender, marital status, baseline BMI, haemoglobin, clinical stage and estimated creatinine clearance. The Pearson Chi square (X2) was used for all categorical independent variables and the t-test, for all continuous independent variables, to test for association. The estimate used was a 95% confidence interval, and a p-value of < 0.05 was considered significant. Results: The study showed that 52.6% of individuals were in clinical stage I at baseline. Viral suppression (viral load < 50 copies/ml) at 6 months was 64% (n = 648), 72% (n =193) at 60 months and 94% (n = 16) at 132 months. Fifty-nine percent had consistent viral suppression for a period of at least 6 months. Consistent viral suppression (viral load < 50 copies/ml on at least one consecutive occasion without any intervening viral load > 50 copies/ml) for at least 54 months was only 14%, while 2.3% had a delay in switching from a failing regimen. The mean CD4 count at baseline was 227 cells/μL, and 538 cells/μL at 60 months. The mean CD4 cell count increase from baseline to 6 months was 190 cells/μL. The immuno-virologic discordance was 27%. Patients with higher baseline CD4 count and females were significantly (p = 0.001 and 0.031 respectively) more likely to achieve viral suppression at 6 months. Those below 45 years and females were v significantly (p = 0.011 and 0.043 respectively) more likely to achieve adequate CD4 count increase at 6 months. Conclusions: The proportion of individuals with viral suppression in the District increased from 6 months onwards, and is fairly adequate. However, sustainability of viral suppression, once attained, is low. Adequate immunologic response, however, seems high. Males and age group above 45 years appear to have poorer responses to HAART.

MA (Sociology) / Department of Sociology / The study aimed to explore on the oral narratives of selected female migrants in South Africa. It was a case study of Thohoyandou in the Limpopo Province. Female migrants are faced with integration challenges such as political and socio-economic challenges. The study focused on reflecting on stories of selected female migrants who reside in Thohoyandou. The study was qualitative in nature and utilised a qualitative exploratory research design because it was aimed at exploring perceptions on oral narratives of selected female migrants. The researcher made use of non-probability sampling in the form of purposive sampling method and snowball. Data was collected through semi-structured interviews. Data was then sorted, coded, organised and indexed in a manner that made it easier for the researcher to interpret, analyse and present in content analysis. Text was summarised by checking key themes, phrases or passages that were used in a more detailed analysis. The process was guided by the original aim of the study. Findings of the study postulated that most female migrants came for economic reasons and discrimination is perceived to be an important barrier to integration. Other significant integration barriers include linguistic, educational, and institutional factors. Internal factors (social, cultural, and religious norms, immigrants' own opinions about themselves, lack of motivation and intergenerational mobility) are also serious barriers to integration.

MPH / Department of Public Health / The exchange of money or gifts for sexual relationships, also called transactional sex, is considered a sexual risk behaviour worldwide and continues to pose sexually-transmitted infections,unwanted pregnancies risks and other health complications among people engaging in these type of relationships. The aim of the study was to explore the perceptions of students regarding transactional sex and its effects on health at the University of Venda. The study utilized a qualitative, descriptive phenomenological design to understand the perceptions of students regarding transactional sex. The target populations of the study were registered students at the University of Venda. Purposive technique was used to recruit 18 participants. Data was collected using in-depth interviews and analyzed using using Tesch’s thematic analysis. The study concluded that students at the University of Venda perceive transactional sex as a material-based relationship, prostutition, immoral behaviour and abusive relationship.Students perceived socio-economic status, social classes, behavioural aspects and peer pressure to be the driving factors pushing students to engage in transactional sex. Transactional sex is common among the University community and has far-reaching public health as well as social consequences. Students at the University of Venda perceive transactional sex an a bad behavior. This calls for the University to ensure that there are enough extra-mural activities for students to engage in,which could generate some pocket money, awarenesses and educate student not to engage in transactional sex and also provide health talks through printing of pamplets communicating massages against this practie.