Theses and Dissertations

A Geospatial assessment of soil erosion risk and soil fertility changes due to ISPAAD programme: A case study of Dinogeng Agricultural Extension Area, Kgatleng District

Sitayelo, Lucky (Botswana University of Agriculture & Natural Resources, 2022-06)

This study was conducted in Dinogeng Agricultural Extension Area (DAEA) in the Kgatleng District located in the eastern part of Botswana. The main objective of this study was to assess soil erosion risk and soil fertility ...

Bio-efficacy of selected bean genotypes and some plant powders as protectant against the seed beetle, Callosobruchus Maculatus (Coleoptera: Chrysomelidae)in storage

Tlale, Oabile Lecage (Botswana University of Agriculture & Natural Resources, 2022-10)

Common bean (Phaseolus vulgaris L.) is one of the utmost significant grain legumes in developing countries, however its production in Botswana has been failing to retain pace with annual growth rates due to post harvest ...

Assessment of water quality in a drainage channel at Pandamatenga commercial arable farms for possible agricultural reuse

Kakooza, Simon Peter (Botswana University of Agriculture & Natural Resources, 2023)

Botswana is a semi-arid country with low rainfall and a lack of water resources. The country has reached its full potential in terms of surface water development, that is, the construction of dams, owing to the flat ...

Effects of land cover land use change on soil organic carbon stocks in Greater Gaborone, Botswana.

Neba, Suh Celestine (Botswana University of Agriculture & Natural Resources, 2022-12-17)

Changes in Land cover land use (LCLU) have long been considered to be among the many factors responsible for the physical and chemical degradation of the soil. Soils are potentially a viable sink for atmospheric carbon and ...

Assessing the potential of rainwater harvesting for sustaining small scale irrigated coffee farming in the Bigasha watershed, Uganda2023

Matyanga, Samuel (Botswana University of Agriculture & Natural Resources, 2023-01-25)

This study used remote sensing, Geographical Information System (GIS), the Quantum GIS Soil and Water Assessment Tool (QSWAT+) and Crop Water and Irrigation Requirements Program (CROPWAT) to assess the potential of rainwater ...

Wildfire prediction and monitoring in the rangeland areas of Botswana: a case study of Kgalagadi district

Kaduyu, Issa (Botswana University of Agriculture & Natural Resources, 2023-01)

Fire is a critical tool for managing rangeland ecosystems, particularly in the savannah. However, the increasing wildfire occurrence poses a considerable danger to rangeland ecosystem continuity. Burned area extent and ...

Abundance and diversity of safflower (Carthamus tinctorius l.) insects in Botswana

Basiame, Keheng (Botswana University of Agriculture & Natural Resources, 2022-10)

Water scarcity has become a major challenge for Botswana farmers to increase their production despite various development initiatives introduced by the government. Safflower (Carthamus tinctorius l.) is a drought tolerant ...

A Geospatial assessment of soil erosion risk and soil fertility changes due to ISPAAD programme: A case study of Dinogeng Agricultural Extension Area, Kgatleng District.

Sitayelo, Lucky (Botswana University of Agriculture & Natural Resources, 2022-06)

This study was conducted in Dinogeng Agricultural Extension Area (DAEA) in the Kgatleng District located in the eastern part of Botswana. The main objective of this study was to assess the impacts of the Integrated Support ...

The influence of nitrogen and phosphorus nutrition on growth and yield components of safflower (Carthamus tinctorius l.

Kolanyane, Maduo Opelo (Botswana University of Agriculture & Natural Resources, 2022-08)

Safflower (Carthamus tinctorius L.) is a versatile crop used for edible oil, vegetable, cut flower production, colouring foods, cosmetics, pharmaceuticals, livestock feed, biofuels, textile, and medicinal purposes. Soil ...

Evaluation of variety alone or in combination with diatomaceous earth or pyriproxyfen (an insect growth regulator) for managing plodia Interpunctella (hubner) (lepidoptera; pyralidae) on stored groundnuts (arachis hypogaea L.)

Masukujane, Masego (Botswana University of Agriculture & Natural Resources, 2018-09)

In storage, insect pests cause considerable losses to stored groundnut (Arachis hypogaca L.) and one of the major storage pests worldwide is Plodia interpunctella (Hubner). Two experiment were conducted to evaluate the ...

Evaluation of the diversity and pest status of fruit flies on marula, Sclerocarya Birrea in Gabane, Mochudi and Rasesa

Ntlogelang, Keabetswe (Botswana University of Agriculture & Natural Resources, 2011-07)

Manila (Sclerocarya birrea) is one of the most useful indigenous trees in Africa. The fruits of marula are used to produce useful products such as juice, jam and beer. The seed kernels are very rich in proteins and can be ...

Quantitative assessment and transfers of potentially toxic metals from soils to vegetable crops in urban and peri-urban agriculture land use system in Botswana.

Obuseng, Lambani Charles (Botswana University of Agriculture & Natural Resources, 2015-08)

Urban and peri-urban agriculture (UPA) is considered an important source of food for cities and for vulnerable households. It is usually characterized by high input intensity and use of wastewater for irrigation. The ...

Evaluation of bacillus thuringiensis (var. kurstaki), spinosad and cypermethrin for the control of diamondback moth (plutella xylostella l.) on cabbage.

Legwaila, Mosimanegape Mitch (Botswana University of Agriculture & Natural Resources, 2011-07)

An experiment was conducted al the Botswana College of Agriculture (BCA), Gaborone, Botswana (24° 55’S, 25" 95’E) at an altitude of 998m above sea level to evaluate the effectiveness of Bacillus thuringiensis(Bt), ...

Phosphate sorption and its relation to soil properties

Molapong, Keoagile Fanoel (Agricultural University of Norway, 1986-12-11)

In order to study the phosphorus sorption characteristics of six soils from Botswana, 2g of soil were equilibrated at 20°C in 0.01M CaCl2 containing various amounts of dissolved phosphate (0-900 pg P/g soil for two days). ...

An assessment of biological nitrogen fixation on legumes growing on farmers’ fields and in natural systems and authentication of associated root nodule bacteria

Bernard, Nkosilathi (Botswana University of Agriculture & Natural Resources, 2017-05)

The low inherent soil fertility, especially nitrogen (N) constrains arable agriculture in Botswana. Nitrogen is usually added to soil through inorganic fertilizer application. In this dissertation, biological N? fixation ...

The role and potential of tree growing on farms in the Barolong district – Botswana

Walker, Keitirele Patricia (University of Aberdeen, 1992)

In the Barolong District the depletion of the woodland resource, upon which households are dependent for fuelwood, poles, fencing material, livestock forage and protection of cropland soil, is a cause for concern. The ...

Effect of leaf bud removal and partial leaf harvesting on growth, development and yield of cowpeas (Vigna unguiculata [L.] Walp.)

Phatsima, Matthews (Botswana University of Agriculture & Natural Resources, 2017-05)

Cowpea (Vigna unguiculta [L.] Walp.) originates in tropical Africa. Most producers engage in “dual purpose” cowpea production, where sequential harvests of leaves arc made, followed by seed harvest at the end of the ...