Your search found 3 records
1 Ncube, B.; Magombeyi, M.; Munguambe, P.; Mupangwa, W.; Love, D. 2009. Methodologies and case studies for investigating upstream-downstream interactions of rainwater water harvesting in the Limpopo Basin. In Humphreys, E.; Bayot, R. S. (Eds.). Increasing the productivity and sustainability of rainfed cropping systems of poor smallholder farmers: proceedings of the CGIAR Challenge Program on Water and Food, International Workshop on Rainfed Cropping Systems, Tamale, Ghana, 22-25 September 2008. Colombo, Sri Lanka: CGIAR Challenge Program on Water and Food. pp.209-221.
Water harvesting ; Models ; Supplemental irrigation ; River basins / South Africa / Mozambique / Zimbabwe / Limpopo Basin
(Location: IWMI HQ Call no: 631 G000 HUM Record No: H042441)
(8.92MB)
Rainwater harvesting (RWH) is a promising technology for increasing water availability for crop production of smallholder farmers in the semi-arid regions of the Limpopo Basin. A few studies on rainwater harvesting have been conducted in the basin at small plot and farmer field scales. Results from Mozambique, Zimbabwe and South Africa indicate substantial benefits to crops grown using a range of rainwater harvesting techniques. However, there have been no catchment and basin level studies to investigate the impacts of wide scale adoption at these levels. A methodology flow chart is proposed for systematically investigating the impacts of out-scaling of these in-field and ex-field rainwater harvesting techniques. The method proposes an analysis of levels of adoption to help identify optimum levels that will maximize land and water productivity while minimizing negative hydrological and ecological impacts at catchment or basin scales.
2 Goldin, J.; Nhamo, L.; Ncube, B.; Zvimba, J. N.; Petja, B.; Mpandeli, S.; Nomquphu, W.; Hlophe-Ginindza, S.; Greeff-Laubscher, M. R.; Molose, V.; Lottering, S.; Liphadzi, S.; Naidoo, D.; Mabhaudhi, Tafadzwanashe. 2022. Resilience and sustainability of the water sector during the COVID-19 pandemic. Sustainability, 14(3):1482. [doi: https://doi.org/10.3390/su14031482]
Water security ; COVID-19 ; Pandemics ; Resilience ; Sustainability ; Sanitation ; Public health ; Research projects ; Stakeholders ; Case studies / South Africa
(Location: IWMI HQ Call no: e-copy only Record No: H050969)
(5.37 MB) (5.37 MB)
The COVID-19 pandemic brought unprecedented socio-economic changes, ushering in a “new (ab)normal” way of living and human interaction. The water sector was not spared from the effects of the pandemic, a period in which the sector had to adapt rapidly and continue providing innovative water and sanitation solutions. This study unpacks and interrogates approaches, products, and services adopted by the water sector in response to the unprecedented lockdowns, heralding novel terrains, and fundamental paradigm shifts, both at the community and the workplace. The study highlights the wider societal perspective regarding the water and sanitation challenges that grappled society before, during, after, and beyond the pandemic. The premise is to provide plausible transitional pathways towards a new (ab)normal in adopting new models, as evidenced by the dismantling of the normal way of conducting business at the workplace and human interaction in an era inundated with social media, virtual communication, and disruptive technologies, which have transitioned absolutely everything into a virtual way of life. As such, the novel approaches have fast-tracked a transition into the 4th Industrial Revolution (4IR), with significant trade-offs to traditional business models and human interactions.
3 Mndzebele, B.; Ncube, B.; Fessehazion, M.; Mabhaudhi, Tafadzwanashe; Modi, A. T. 2023. Assessment of the effects of NPK fertilizer on edible yield and agro-biological parameters in a cowpea–amaranth intercrop. Frontiers in Sustainable Food Systems, 7:1210984. [doi: https://doi.org/10.3389/fsufs.2023.1210984]
NPK fertilizers ; Cowpeas ; Amaranthus ; Intercropping ; Crop yield ; Cropping systems ; Yield losses ; Parameters ; Food security ; Nutrition security ; Biomass ; Nitrogen fertilizers ; Phosphate fertilizers ; Potassium ; Land use / South Africa
(Location: IWMI HQ Call no: e-copy only Record No: H052404)
https://www.frontiersin.org/articles/10.3389/fsufs.2023.1210984/pdf?isPublishedV2=False
https://vlibrary.iwmi.org/pdf/H052404.pdf
https://vlibrary.iwmi.org/pdf/H052404.pdf
(0.49 MB) (497 KB)
Introduction: Estimates indicate that food and nutritional demand in sub-Saharan African nutrient-poor soils will exceed the high population demand. Vegetables such as amaranth and cowpea are key in contributing to food and nutritional security. Fertilizers are used to mitigate low nutrient levels in soils. This study aimed to investigate the yield parameters of cowpea and amaranth vegetables.
Methods: The experiment was designed with a 2 × 4 factorial treatment structure in a completely randomized design, with intercropping and fertilizer level as treatment factors and with four replications.
Results and discussion: The biomass of amaranth and cowpea increased with increased fertilizer application up to the level of 100% nitrogen, phosphorus, and potassium (NPK) fertilizer. A measure of land utilization showed values greater than one. Crop comparison showed that cowpea was more aggressive, had higher actual yield loss, and was highly competitive compared to amaranth. More income could be obtained from intercropping. The research shows the benefits of fertilizer application in improving the biomass of amaranth and cowpea. Overall, the application of NPK fertilizer at levels up to 100%, based on the results of this study, resulted in higher biomass accumulation and improved intercropping indices.
Methods: The experiment was designed with a 2 × 4 factorial treatment structure in a completely randomized design, with intercropping and fertilizer level as treatment factors and with four replications.
Results and discussion: The biomass of amaranth and cowpea increased with increased fertilizer application up to the level of 100% nitrogen, phosphorus, and potassium (NPK) fertilizer. A measure of land utilization showed values greater than one. Crop comparison showed that cowpea was more aggressive, had higher actual yield loss, and was highly competitive compared to amaranth. More income could be obtained from intercropping. The research shows the benefits of fertilizer application in improving the biomass of amaranth and cowpea. Overall, the application of NPK fertilizer at levels up to 100%, based on the results of this study, resulted in higher biomass accumulation and improved intercropping indices.
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