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Publications (28)
Sub-Saharan Africa (SSA) is a significant user of pesticides, relying on agriculture for economic development. Pesticides and agrochemicals contribute to the presence of Persistent Organic Pollutants (POPs) in the environment. This review addresses knowledge gaps in monitoring and quantification of POPs, the application of natural coagulants for bi...
Irrigation schemes across sub-Saharan Africa are constructed with the intention of increasing agricultural production to increase food security, reduce poverty, and improve economic growth. However, most of these schemes are not performing as expected. This study, therefore, diagnosed performance gaps in the pilot irrigation schemes of Mubuku and D...
CONTEXT
Assessment of land suitability for irrigation under changing climate holds paramount significance given the pronounced reliance on rainfed agriculture in sub-Saharan Africa.
OBJECTIVE
To investigate land suitability for surface irrigation under changing climate in a tropical setting of Uganda, East Africa and explore implications for irrig...
Information on catchment sediment yield and its heavy metal content is crucial to understanding of the transport mechanisms and the potential ecological threats of this sediment. This research aimed at modelling sediment yield and quantifying heavy metals bound to the sediment. The study was conducted in the Lake Victoria's Inner Murchison Bay catc...
![Fig. 3. Summary of the methodology. Adapted from ([35]).](profile/Anthony-Gidudu-2/publication/367274376/figure/fig3/AS:11431281114172926@1674289713878/Summary-of-the-methodology-Adapted-from-35_Q320.jpg)
The rising competition for scarce land and water resources and the need to satisfy the global food demand from an ever-growing population necessitates novel methods to monitor irrigation scheme performance for improved water use efficiency. The traditional methods employed in sub-Saharan Africa to assess irrigation performance are point-based, expe...
The adverse effects of climate change and climate variability are hindering agricultural productivity in developing countries. When combined with the laborious nature of irrigated agriculture, many smallholder farmers in these countries abandon irrigation systems or occasionally fail to implement an irrigation event due to other
commitments. Theref...
Soil erosion and sedimentation contribute to deteriorating water quality, adverse alterations in basin hydrology and overall ecosystem biogeochemistry. Thus, understanding soil erosion patterns in catchments is critical for conservation planning. This study was conducted in a peri-urban Inner Murchison Bay (IMB) catchment on the northern shores of...
Closing the yield gap and enhancing efficiency in rainfed maize production systems in Ethiopia requires urgent action in increasing the productivity of degraded agricultural land. The degradation of land through continuous compaction and decline in the organic matter has resulted in a wide-spread formation of a hardpan that restricts deep percolati...
The frequency and intensity of extreme climate events such as heavy rainfall and droughts are expected to increase with climate change and are predicted to severely affect the agriculture sector. However, drought vulnerability of rural communities in sub-Saharan Africa is not well documented, despite these communities being composed of mainly small...
The development of and access to freshwater resources in East Africa is fundamental to the region's sustainable development goals. Following vision documents for regional development and working with local stakeholders, we developed water scenarios up to 2050 that inform the hydro-economic modeling analysis of the extended Lake Victoria Basin, the...
Irrigation scheduling and application efficiency were evaluated for Meki-Ziway irrigation scheme in an overall effort to revitalize the scheme. The evaluation was done on three furrows in each of the four farm plots. Field capacity, permanent wilting point and bulk density of the four plots were determined in the laboratory. We monitored furrow inf...
The development of and access to freshwater resources is fundamental if East Africa aims to achieve its goal of increased economic growth. Following vision documents for regional development and working together with local stakeholders, we developed water scenarios up to 2050 that inform the hydro-economic modelling analysis for the extended Lake V...
Intensification of rainfed agriculture in the Ethiopian highlands has resulted in soil degradation and hardpan formation, which has reduced rooting depth, decreased deep percolation, and increased direct runoff and sediment transport. The main objective of this study was to assess the potential impact of subsoiling on surface runoff, sediment loss,...
For planning, development and management of water resources, understanding runoff mechanism and groundwater recharge is useful especially to watershed management and groundwater use for domestic and irrigation water supply. During the period of the study, stream flow, groundwater levels, infiltration tests, rainfall and soil moisture measurements w...
Smallholder irrigation expansion would significantly increase agricultural production, and reduce food insecurity and poverty levels in East Africa. This paper reviews literature on trends, constraints and opportunities of smallholder irrigation in four East African countries: Ethiopia, Kenya, Tanzania and Uganda. Irrigation development has been sl...
Long term use of Maresha plow, a conventional plow pulled by oxen, has resulted in the formation of a restrictive layer thereby limiting water movement and aeration as well as root zone penetration in the soil profile. Several studies have shown that improved tillage practices can positively affect infiltration and aeration resulting in increased r...
In Sub-Saharan Africa small scale irrigation is developing rapidly. Whilst emphasis is mainly placed on water resource availability and access for irrigation, less attention is paid to the interaction of water management on nutrient balances. The quality and quantity of irrigation water delivered to the field not only controls the nutrient flow dyn...
Although Ethiopia has abundant rainfall during the monsoon, its agricultural system does not yet fully benefit from the technologies of optimal agricultural water management during the dry season when water supplies are short. Therefore, there is need to investigate the potential of simple water saving irrigation technologies for farmers. In this s...
The Ethiopian government has declared the Lake Tana Beles region a growth corridor Irrigation development is one of the priority. Since baseflow is limited, groundwater has the greatest potential for increasing irrigation in the near future. The main drawback is a lack of information on sustainable groundwater use and specifically the ground water...
Center pivot and linear move irrigation systems design and operation are primarily limited by soil infiltration rates. Surface runoff can be a problem on some soils whose in-take rates are low. Additional design and management factors must be considered to prevent runoff in these systems. Boom systems have been suggested to decrease runoff by reduc...
Water-saving strategies aimed at improving water use efficiency need to be applied in agriculture today to ensure sustainable use of scarce water resources. This article presents results of a 2-year study done at Washington State University’s Irrigated Agriculture Research and Extension Center (IAREC) to determine the effect of various water stress...
