Treadle Pump Research Articles

The influence of an agricultural intervention on social capital and water insecurity coping strategies: Qualitative evidence from female smallholder farmers living with HIV in western Kenya

BackgroundGreater social capital is associated with positive health outcomes and better HIV management. The ways by which social capital may influence household water insecurity (HHWI), a critical determinant of health among persons living with HIV, remain underexplored. Further, despite the importance of reliable water access and use for health and agricultural productivity, few studies have described the strategies smallholder farmers living with HIV use to manage water insecurity. ObjectiveWe qualitatively explored how an agricultural intervention (provision of a treadle pump for irrigation) influenced HHWI coping strategies through its impacts on social capital among smallholder farmers living with HIV in western Kenya. MethodIn 2018, we purposively recruited participants from the Shamba Maisha study, a randomized agricultural intervention (NCT02815579) that provided irrigation pumps to improve treatment outcomes and food security among smallholder farmers living with HIV in western Kenya (n = 42). Participants shared their experiences with water insecurity through go-along and photo-elicitation interviews. Data were thematically analyzed using inductively developed codes. ResultsParticipants described diverse strategies for coping with agricultural water insecurity. Dimensions of social capital such as feelings of belonging, connectedness, and trust influenced the use of the treadle water pump and other water access behaviors. For instance, participants reported borrowing or sharing water pumps with friends and neighbors if they felt they had a good rapport. In addition, participants indicated a willingness to engage in collective activities, such as supporting the operation of the irrigation pump during planting, when they felt sufficiently connected to a larger group. Overall, individuals in the intervention arm described greater social cohesion, reciprocity, and community connectedness than those in the control arm. ConclusionThe impact of an agricultural intervention on water access and use was described as being modified by social capital among female smallholder farmers living with HIV. Findings suggest that social capital may create an enabling environment for implementing strategies that improve the management and reduce the burden of HIV. Measuring these strategies and their associations with HIV outcomes may strengthen our understanding of resilience among female smallholder farmers living with HIV. The development of a coping strategies index and its use in a longitudinal study could help to identify pathways through which social capital influences health and the effectiveness of livelihood interventions.

Development and Performance Evaluation of a Vacuum Drum Based Water Pumping System

A vacuum drum based water pumping system (VDBWPS) is a cost effective system for lifting and carrying water from a nearby flowing canal/nallah as well as from standing water of farm pond/open well. The main component of the developed system includes of a mild steel (MS) drum, polyvinyl chloride (PVC) pipe, jointer, elbow joint, T-joint, L-joint, regulator valve, and foot valve. In this system water can be filled manually or via other devices, such as a solar pump or a treadle pump. The drum's capacity is nearly 80% filled, and the remaining 20% is kept empty. A continuous supply is created by closing both air release valves and opening the discharge valve. More is the vacuum, better will be the pumping. The testing of vacuum drum based water pumping system was evaluated at different suction lift and carrying horizontal distances, both affecting the discharge. The result show that the water pumping system gave a discharge 2.22 to 2.40 litre per minute (lpm) at a constant suction lift of 0.92 meter (m) and varying distances 0 to 12 m. it was also found that the discharge increase with the distance having peak discharge at 6 m i.e. 3.75 lpm and afterwards it decreases gradually as the carrying length increases. The vacuum drum based water pumping system can give a discharge of 5400 litre per day (lpd) at 0.92 m of suction lift and carrying horizontal distance of 6 m. The cost of operation of vacuum drum based water pumping system was 352.41 ₹/day. It has always been a demand that the "technology should be technically feasible, economically viable and socially acceptable".

Multidimensional evaluation of the impacts of agricultural interventions to achieve food security in Malawi

AbstractMalawi's food and nutrition security heavily relies on rainfed agricultural production, which is prone to the effects of climate change, such as floods and dry spells. To improve the situation, policies have been established as a guide to assist in the implementation of agricultural technologies in the country. This study aims to evaluate the effect of two national policies on addressing nutrition, economics, and food security by introducing modern/existing technologies in the Phalombe district in Malawi. To gain insight into the representative farm operations, financial, demographic, and consumption behaviors of smallholder farmers, the data were obtained through a combination of focus group discussions, expert opinions, and various published reports, including both government and nongovernment sources. The farm simulation model (FARMSIM) was utilized to analyze district‐level crop and livestock farm operations. In this study, four irrigation technologies (treadle pump system, motorized pump system, solar‐powered system, and river diversion irrigation system) were assessed among the agricultural interventions implemented in Malawi. Also, seven land uses (i.e., corn, onion, bean, rice, tomato, leafy vegetable, and cabbage) were developed and simulated under irrigation scenarios. The irrigation systems and land use scenarios were evaluated based on economics, productivity, nutrition, and risk. The treadle pump and leafy vegetable scenario were generally identified as the most preferred combination. In addition, the productivity and riskiness of the other scenarios can be improved by selecting the best combination of crop and irrigation systems. The study concludes that government and private investment in subsidies for large‐scale irrigation systems, as well as improvements to market prices and infrastructure, are necessary to boost food security and enhance the livelihood of smallholder farmers in rural Malawi.

DESIGN, CONSTRUCTION AND EVALUATION OF RUNOFF WATER HARVESTING POND FOR SMALLHOLDER FARMING

Rainfall shortage and variability constrain crop production of smallholder farmers in Ethiopia is the main problem. For this supplementary irrigation by run off harvesting is strategic pathway to reduce poverty in rural drought prone areas for enhancing agricultural productivity and boosting farm income. For this, this study is conducted to Design, construction and evaluation of runoff water harvesting Pond for supplementary irrigation to addressing inherent crop failures under the rain fed agriculture due to mainly erratic rainfall. For this design climatic and soil data were input to determine seasonal crop water requirement (CWR) of onion and evaporation loss of water from water surface. Then the performances of water harvested verses area irrigate were evaluated. To make this study more economical the water harvester capacity decreed by two fold and water harvesting made at two times. Seasonal volume crop water requirement (CWR) of onion for farm area 2500 m2 and evaporation loss of water from water surface of 121 m2 and total volume of seasonal water need were 382.05,53.38 and 435.43 m3 respectively. The geo-membrane laminated water harvester that has capacity of 223 m3 was designed and constructed. From on field performance shows, this volume of water harvested twice can irrigate 0.25ha by supplementary irrigation using water saving irrigation technology (treadle pump) by over showering and was produced 4.2 tone/ha. The investment, operation and production costs were 63116, 1125 and 6675 ETH birr respectively. The total cost was 70,916 birr and The growth return of 0.25ha was 15,750 birr/year (1050kg*15 birr/kg). This show the farmer can return 22.21% of their investment cost. So it is recommended to the government and non-government to initiate the farmers at lower stream of the catchment to harvest run off water and use for supplementary irrigation to increase their income.

An Economic-Based Evaluation of Maize Production under Deficit and Supplemental Irrigation for Smallholder Farmers in Northern Togo, West Africa

While the world population is expected to reach 9 billion in 2050, in West Africa, it will more than double. This situation will lead to a high demand for cereals in the region. At the same time, farmers are experiencing yield losses due to erratic rainfall. To come up with a sound and effective solution, the available but limited water should be used to achieve high yields through irrigation. Therefore, full and deficit irrigation management strategies were evaluated. The expected profit that can be obtained by a smallholder farmer under a conventional irrigation system in the short-term of investment was also assessed considering rope and bucket, treadle pump, and motorized pump water-lifting methods. The study focused on maize in northern Togo. The framework used in this study consisted of (i) a weather generator for simulating long-term climate time series; (ii) the AquaCrop model, which was used to simulate crop yield response to water; and (iii) a problem-specific algorithm for optimal irrigation scheduling with limited water supply. Results showed high variability in rainfall during the wet season leading to significant variability in the expected yield under rainfed conditions. This variability was substantially reduced when supplemental irrigation was applied. This holds for the irrigation management strategies evaluated in the dry season. Farmers’expected net incomes were US$ 133.35 and 78.11 per hectare for treadle pump and rope and bucket methods, respectively, under 10% exceedance probability. The motorized pump method is not appropriate for smallholder farmers in the short run.

Empowerment and Tech Adoption: Introducing the Treadle Pump Triggers Farmers’ Innovation in Eastern Ethiopia

In 2013, thirty-eight treadle pumps (TPs) were installed as low-cost technology introduction for small-scale irrigation in eastern Ethiopia. This pilot project also trained six farmers on tube well excavation, as well as the installation and maintenance of pumps. In June 2015, researchers visited nine of the thirty-eight TP villages and found only two TPs functioning as originally installed. The rest were replaced with a new technology developed by the trained farmers. Farmers, empowered by training, gained more control in developing technology options tailored to local needs and conditions of their communities. Adopters of the new technology stated that the limited water output and high labor demand of the conventional TP did not optimally fulfil their irrigation water requirements. The new technology had spread quickly to more than one hundred households due to three key factors. First, farmers’ innovative modifications of the initial excavation technique addressed the discharge limitations of the conventional TP by excavating boreholes with wider diameter. Second, local ownership of the new technology, including skills used in well drilling and manufacturing excavation implements, made the modified irrigation technology affordable and accessible to the majority of households. Third, this innovation spread organically without any external support, confirming its sustainability.

Treadle pump: A low cost irrigation option for marginal farmers

The population of marginal farmers in India is bound to increase due to continued division of farm holdings. Characteristically, marginal farmers are having more family labours but the production and productivity of their land holdings is low. The foremost reason behind this is the erratic rainfall and lack of assure supplementary irrigation during long dry spells. This paper presents the scope and applicability of a diaphragm based treadle pump in Bihar where groundwater is abundant and available at shallow depths round the year. Therefore, this pump could be very useful for marginal farmers in improving production and productivity of their tiny piece of land, as it uses human power and can be operated by male and female of age group 32- 45 years and lifts water from a depth ranging from 0- 30 feet. The water saving technologies such as bucket kit drum kit etc. could be used with this pump to irrigate the crops with high water productivity.

Performance of Small‐Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Three Agro‐Ecologies of Malawi

AbstractAgricultural water management interventions play a critical role in mitigating hunger during droughts and dry seasons in southern Africa. A study was conducted in Malawi to compare the performance of improved agricultural water management interventions with traditional water management practices to assess the performance of the interventions on crop yield and water use. The study used questionnaires and focused group discussions to collect data from farmers and key informants. The results showed significant gains using regulated surface irrigation compared with unregulated surface irrigation. The results showed that yield increases of 33 and 37% for onion and tomato respectively were obtained from wetland seepage irrigation compared with upland cultivation. Treadle pump irrigation increased crop production by 5–54% compared with water can irrigation. Treadle pumps also increased gross and net incomes by ≥12%, suggesting that farmers using the treadle pump were able to realize higher incomes across all crop enterprises compared with farmers using water cans. However, there is a dire need to improve the efficiency of the surface irrigation systems for rice production because the water applied was about two to three times the gross irrigation requirement which could result in environmental degradation through increased salinity and waterlogging. Copyright © 2014 John Wiley & Sons, Ltd.

Evaluation of a treadle pump for low lift irrication at NCAM, Ilorin, Nigeria

The treadle pump is a low speed foot operated single acting double cylinder piston pump for low lift irrigation. A scientific methodology is demonstrated for the evaluation of a metal treadle pump manufactured in Kenya to present pump performance data for the benefit of users. The experimental data indicated that the treadle pump cannot pull water from any source more than 7 m below the pump. Results showed an inverse relationship between discharge and delivery head with discharge varying from 1.3 l/sec to 0.8 l/sec for 1m to 6m delivery head respectively. The maximum overall efficiency of the treadle pump was found to be 89.7% at a static suction head of 2.5 m. Treadle pumps are suitable, ergonomic and economical for supplying water for drinking and small-scale irrigation in developing countries. Key Words: Discharge, Efficiency, Manual pump, Small-scale irrigation, Treadle

Impacts of Small-Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Two Agro-Ecologies of Malawi

A study was conducted in Malawi to compare the performance of improved agricultural water ma- nagement interventions with traditional water management practices to assess the impact of the interventions on crop yield and water use productivity. The study used questionnaires and focused group discussions to collect data from farmers and key informants. The results showed significant gains in crop yield, farmer income, and water use productivity using the regulated surface irrigation compared with unregulated surface irrigation. Treadle pump irrigation increased crop production by 5% - 54% compared with water can irrigation. Treadle pumps also increased gross and net incomes by >12% suggesting that farmers using the treadle pump were able to realize higher incomes across all crop enterprises compared with farmers using water cans. However, there is a dire need to improve the efficiency of the surface irrigation systems for rice production because the water applied was about 2 to 3 times the gross irrigation requirement (~10,780 m3·ha－1) which could result in environmental degradation through increased salinity and water logging.

TREADLE PUMP IRRIGATION IN MALAWI: ADOPTION, GENDER AND BENEFITS

ABSTRACTAs part of their irrigation strategy, the government and non‐governmental organizations (NGOs) in Malawi are actively promoting the use of treadle pumps in smallholder irrigation. The positive impact of treadle pumps on food security and poverty reduction in Malawi and elsewhere in sub‐Saharan Africa is well documented. However, few studies have analysed the adoption dynamics and dissemination approaches of treadle pumps. This study uses a logit model to analyse the factors influencing treadle pump adoption among a stratified random sample of 100 adopters and 100 non‐adopters in two districts in Malawi. The results indicate that relatively well‐off farmers have a significantly higher probability of adopting the treadle pumps than poor farmers. This raises questions about dissemination approaches and targeting, because treadle pumps are typically geared towards poor smallholders. The study further indicates differences between male and female adopters. Female adopters are more likely to pay for subsidized treadle pumps in cash. Male adopters mostly acquire their pumps through a loan. Women tend to spend the additional income on food for the household while men tend to spend it mostly on non‐food items. It is therefore likely that treadle pump adoption by women will positively impact on household food security, though it also adds to women's workload. Copyright © 2012 John Wiley & Sons, Ltd.

Performance of bucket drip irrigation powered by treadle pump on tomato and maize/bean production in Malawi

The performance of a bucket drip irrigation system (BDI) powered by treadle pump was evaluated on tomato and intercropped maize/bean crops, between 2005 and 2007 in Malawi. It was a split plot experiment with three replicates. The BDI system consisted of a 1,300-l tank mounted 1.5 m above ground and connected with a 32-mm mainline and 15-mm lateral lines spaced at 1 m by 0.6 m. A treadle pump was used to uplift water to the tank. Tomato and intercropped maize/bean were irrigated every 4 days. The system reduced labour and water by >25% and it showed high uniform application depth and wetted diameter. Yields were significantly different between tomato varieties (P < 0.05). Maize/bean yields were highly significantly different between monoculture, intercropping system and bean varieties (P < 0.001). Consequently, an economic analysis shows that there is a significant difference, in terms of net income, between the various crop enterprises. Tomato was more valuable with BDI, compared to maize and beans. It can be concluded that BDI, powered by a treadle pump, saves labour and time and it provides uniform irrigation for crop production. Therefore, tomato is recommended for use with this system, compared to maize and bean.

Any link between sexual inactivity and treadle pump performance characteristics: The Malawi case

In mitigating the effects of climate change in Malawi, government promotes the use of low cost irrigation technologies to small-scale farmers, especially in wetlands where water is available. The treadle pump is one such technology. The pump is a manual water lifting device operated by feet. Although the technology has been widely accepted by small-scale farmers, there are documented reports that some farmers abandon the technology, preferring other technologies such as river diversion. One theory for the abandonment is that female farmers claim that the technology makes their male counterparts sexually inactive. This research seeks to find an explanation to the misconception. The study analyzed the physical characteristics of the treadle pump and its users.The results show that the technology is male-dominated (30% were females out of a sample of 40). The results also show that the technology is labor-intensive with very small discharge rates (an average of 0.78l/s) achieved regardless of the BMI of the operator. With such small discharge rates, in order to fulfill irrigation requirements of a crop, the operator has to pump for long hours. This exercise makes men naturally tired, perhaps making them sexually inactive as well.

Performance Evaluation of an Indigenous Metallic Treadle Pump

Treadle pumps are the most suitable and economical option to supply water for drinking and small-scale irrigation in developing countries. The performance evaluation of a treadle pump is usually done only by measuring discharge. Although few studies have considered operating forces and efficiency of the pump, the details about operating force measurement, input power, output power, mechanical efficiency of the pump and mechanical advantage of the paddles are absent. A scientific methodology is demonstrated for the performance evaluation of a commonly used metallic treadle pump manufactured in India, and to present pump performance data for benefit of the users. The analysis of the experimental data indicated that the metallic treadle pump was able to lift water up to 5 m static suction head. The maximum overall efficiency of the treadle pump was found to be 32.6% at a static suction head of 3.5 m. However, the volumetric efficiency of the pump ranged from 92.9 to 66.7% at static suction heads of 1 to 5 m.

The MicroConsignment Model Reconsidered: Invention-Led Development by Shifting Risk, Transferring Knowledge, and Scaling Capabilities (Innovations Case Discussion: The MicroConsignment Model)

an emerging definition: “Innovative and effective activities that focus strategically on resolving social market failures and creating opportunities to add social value systematically by using a range of organizational formats to maximize social impact and bring about change.” This definition acknowledges three key aspects of social entrepreneurship: an innovative element, a primary focus on the creation of social value, and a diverse set of approaches that employ creativity to deliver social value. Thus it paves the way for a greater understanding of “invention-led development,” which, according to the Lemelson Foundation, focuses on how new ideas, products, or services can be converted to widely accessible or adopted forms in the creation of social value. When the language of invention-led development is used, it conjures up images of novel products and services used in development activities. On the product side, for example, a treadle pump—such as those designed by KickStart— offers significant advantages over other alternatives in improving irrigation for subsistence farmers in Africa. Similarly, on the service side, the creation of microfinance by organizations such as Grameen Bank makes credit available to populations that previously had been denied such access.

The Impact of Treadle Pump Irrigation Technology Adoption on Poverty in Ghana

Treadle pump (TP) technology has been promoted by Enterprise Works in West Africa as an alternative to the traditional rope and bucket irrigation. The aim is to improve output and incomes and reduce poverty among farm households. This paper reports a short term (two years) assessment of the dynamics of its adoption and impacts, with a special focus on poverty reduction. Data used were from primary surveys of adopters and non-adopters of treadle pumps in two regions of Ghana. The data were analyzed using descriptive statistics, budgetary and production function analysis. The results of the study reveal that time and labor savings for irrigation were the major attractive features of the treadle pump for those who adopted it. The difference in net income between adopters and non-adopters was about US$393 per hectare, with an increase in land and labor productivities. About 21% stopped the use of the treadle pump because it broke down, while about 10% shifted to motorized pumping. The study shows that adoption of treadle pumps reduces poverty. It is recommended that increased collaboration with local institutions, such as extension services, will improve the transfer of treadle pump technology to farmers. After-sales service and training of farmers on repairs could reduce treadle pump abandonment. This paper is original as it compares the factors that affect adoption and non-adoption of treadle pumps. It also reveals reasons for abandonment. A multivariate analysis was used to examine the productivity impact of adoption.

Impact of Irrigation on Food Security in Bangladesh for the Past Three Decades

Bangladesh has made impressive progress in agriculture sector in the last three decades and has almost be-come self-sufficient in food grain production. This is a tremendous achievement owing to its small territory and huge population and this was achieved through agricultural mechanization and modernization. Irrigation is one of the leading inputs has direct influence to increase yield, food grains production and plays vital role for ensuring food security in Bangladesh. The present study examined the growth of irrigated area and its impact on food grain production during last three decades. Time series data were used for the study. Differ-ent statistical methods such as mean, percentage, linear and exponential growth model were applied for get-ting meaningful findings. Various technologies have been used for irrigating crops which have contributed to rapid expansion of irrigated area. The conventional irrigation methods (Low Lift Pump, Dhone, Swing Bas-ket, Treadle Pump etc.) were replaced by modern methods (i.e Deep Tube Well and Shallow Tube Well). In addition, surface water irrigation also sharply declined, losing its importance due to lack of new surface irri-gation project and the ineffectiveness of earlier project. Groundwater covered 77 percent of total irrigated area and major (62%) extractions occurred through Shallow Tube Wells (STWs). The rapid expansion of ground water irrigation in respect to STWs irrigation was due to government’s withdrawal on restrictions on tube well setting rule, encouraging private sector and the cost effectiveness of Chinese engine which have been affordable to the small and medium farmers. Irrigated area thus, increased by about three times and cropping intensity also increased from 154 to 176 percent. Boro rice, an irrigated crop, consumed 73 percent of the total crop irrigation and contributed to a greater extent in total rice production in Bangladesh. Boro rice alone contributed to 55 percent of total food grain and was also highest (3.44 MT per hectare) compared to aus rice (1.66 MT per hectare) and aman rice (1.99 MT per hectare) per unit production. Consequently, the cultivated area of boro rice increased by 1168 to 4068 thousand hectares. The higher productivity of boro rice has almost helped the nation to meet her food requirements (about 24 Million MT). Boro rice production was highly correlated (r = .978) with irrigated area. Expansion of one hectare of irrigated area added 3.22 MT of boro rice in Bangladesh. Finally, the study suggested for expansion of irrigated areas (ground water and surface water), adoption of modern technologies and formulation of farmers’ friendly policy.

Impact of treadle pump irrigation technology on smallholder poverty and food security in Malawi: a case study of Blantyre and Mchinji districts

The Malawi Government has intensified the use of treadle pump irrigation technology in an attempt to increase agricultural production and also to enrich the livelihoods of resource-poor farmers. As a result, the treadle pump is gaining in popularity among smallholder farmers throughout the country. This study was conducted in the districts of Blantyre in the Southern Region and Mchinji in the Central Region of Malawi. A total of 50 treadle pump and 50 non-treadle pump farmers were interviewed in each district to assess the impact of treadle pump irrigation technology with regard to food security and poverty. Gross margin analysis showed that adopters of the technology had higher net farm incomes per hectare (NFIs/ha) than non-adopters per year. In Blantyre, NFI/ha value for adopters was MK122,855 (US$1007) compared with MK15,987 (US$131) for non-adopters under irrigation conditions. Similar results were found in Mchinji with MK51,858 (US$425) and MK16,090 (US$132) for adopters and non-adopters, respectively. Likewise, under rain-fed conditions, adopters had higher NFIs/ha than non-adopters: in Blantyre, the respective NFIs were MK19,497 (US$152) and MK3344 (US$27), whereas in Mchinji the respective values were MK16,896 (US$138) and MK10,084 (US$83). Furthermore, the well-being measurements and analyses of poverty revealed a higher poverty level among non-adopters compared with adopters. The former also had a greater relative risk of falling into deeper poverty than the latter. Transition matrices depicting movement in and out of poverty showed that from 2004 to 2005, some poor adopters moved out of poverty while some non-adopters dropped from being non-poor to poor. No adopter moved from non-poor to poor. From the results, it is concluded that the Government of Malawi should be urged to increase the availability of this kind of technology to the market at a reduced cost by offering tax incentives to local manufacturers and by using an input voucher system to subsidize qualified poor smallholder farmers.

Intensive Groundwater Use: Silent Revolution and Potential Source of Social Conflicts

Many papers, including a recent editorial of this journal Stakhiv 2003 , have advocated the need for a paradigm shift toward adaptive, integrated water resources management as a means to attain a rationalization in water use. There is, however, one significant element of water policy that has received less attention by most experts and water decision-makers: intensive groundwater use for irrigation in arid and semiarid regions more significantly in developing countries . This editorial provides an overview of this phenomenon and its main pros and cons, aiming to contribute to the current debate over adaptive integrated water resources management. Assessing the implications might not only shed some new light upon some pervasive world water visions, but also help to avoid or mitigate potential social conflicts. Groundwater development has for a long time provided drinking water to urban and rural populations of developed and developing countries. Currently, groundwater is estimated to provide about 50% of the world’s drinking-water supplies United Nations 2003 p. 78 . Moreover, groundwater is arguably the cheapest and fastest way to achieve the United Nations Millennium Declaration goal of halving the number of people worldwide without affordable drinking water and/or malnourished by 2015 Llamas and Martinez Cortina 2002 . In addition, groundwater abstraction by simplified mechanisms, such as the treadle pump, together with cheap drip irrigation systems, also constitutes a plausible alternative for developing countries to overcome the poverty threshold one dollar/person and day per capita income Polak 2004 . While the human and political relevance of these figures is obvious, it cannot be overlooked that urban and rural domestic supply for human consumption amounts to less than 15% of global water use. Thus, this editorial is concerned solely with irrigation, which is generally acknowledged to be about 70% of the world’s freshwater withdrawal United Nations 2003 . Note that this percentage might increase to about 90% if consumptive uses were considered.

Water and the other three revolutions needed to end rural poverty

Eight hundred million of the current 1.1 billion people who earn less than a dollar-a-day live in rural areas in developing countries. Since more than 550 million of them earn their living from agriculture, poverty eradication depends on increasing their income from farming. The millennium goals for hunger and poverty in the semi-arid tropics will not be met without four simultaneous revolutions. A revolution in water is needed to develop and mass disseminate a whole range of new affordable small plot irrigation technology. A revolution in agriculture is required to enable smallholders to produce a variety of high value marketable labor intensive cash crops. A revolution in markets is needed to open access to inputs and to profitable markets for their high value crops, incorporating effective strategies for aggregation, quality control, and decentralized added value processing. Finally, a revolution in design based on the ruthless pursuit of affordability is needed to support the other three revolutions. This paper describes the rapidly growing micro-irrigation revolution exemplified by the 250 million dollars in new net annual income now being earned by Treadle Pump farmers, and outlines the key features of the other three revolutions required to meet millennium poverty goals.