irrigator Articles
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Modeling irrigation management strategies to maximize cotton lint yield and water use efficiency
Increasing pumping costs and declining well capacities in the Southern High Plains compel producers to seek irrigation strategies to maximize yield and water use efficiency (WUE), which is the ratio of yield to evapotranspiration (ET). Cotton (Gossypium hirsutum L.) is suited to deficit irrigation using wells ranging from 0.29 to 0.93 L s–1 ha–1 capacity to supply limited, 2.5 mm d–1, to ...
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Implementing participatory irrigation management in Thailand
Participatory Irrigation Management (PIM) was formally adopted in Thailand in 2004. The involvement of farmers in water management decision making is necessary to meet the implementation challenges of this initiative. As such, the research presented in this paper considered the level of farmer involvement in water management and decision making, and the lessons learned by both government ...
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Irrigation water governance in practice: the case of the Canale Emiliano Romagnolo district, Italy
Irrigation is an essential element of agricultural production whose absence would create great economic hardship in many regions of the global South. Yet irrigated agriculture uses 70% of global fresh water withdrawals, putting major pressure on global water resources. Whilst much research has focused on technological solutions to improve irrigation efficiency, irrigation water ...
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Cotton subsurface drip and overhead irrigation efficiency, maturity, yield, and quality
Subsurface drip (SSD) is used as a water-efficient alternative to overhead irrigation in many crops. This study compared soil water, water use, crop maturity, lint yield, and fiber quality of cotton (Gossypium hirsutum L.) grown with SSD to cotton grown with overhead irrigation. Three experiments were conducted at two Georgia locations in 2004 and 2005. Treatments consisted of overhead irrigated, ...
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Factors influencing water-use security among smallholder irrigating farmers in Msinga, KwaZulu-Natal Province
This study investigates the physical, socio-economic and institutional factors affecting water-use security among irrigating smallholder farmers in Msinga Local Municipality to recommend policy. Cluster analysis was used to classify farmers according to their water-use security status. The logit model was then used to investigate the socio-economic factors influencing farmers' water-use ...
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Irrigation - Water Management, Pollution and Alternative Strategies
Irrigated agriculture is the most significant user of fresh water in the world and, due to the large area occupied, is one of the major pollution sources for the water resources. This book comprises 12 chapters that cover different issues and problematics of irrigated agriculture: from water use in different irrigated systems to pollution generated by irrigated agriculture. Moreover, the book ...
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Analysis of the hydraulics of the irrigation canals of Otrar, Kazakhstan
Surveys of relic canals at the Oasis of Otrar in Kazakhstan have been used to re-construct patterns of agricultural water use for irrigation between AD700 and AD1500. Hydraulic simulation software was used to calculate the water carrying capacity of historical irrigation canal networks. An analysis of modern day irrigation systems has enabled the calibration of crop water use models and an ...
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Water Quality, Soil and Managing Irrigation of Crops
The book entitled Water Quality, Soil and Managing Irrigation of Crops comprises three sections, specifically: Reuse Water Quality, Soil and Pollution which comprises five technical chapters, Managing Irrigation of Crops with four, and Examples of Irrigation Systems three technical chapters, all presented by the respective authors in their own fields of expertise. This text should be of interest ...
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Institutional analysis of irrigation management in Haiti: a case study of three farmer managed schemes
In the late 1990s, like many other developing countries, Haiti started a process of devolving responsibilities over irrigation scheme management to water users’ associations. In this paper, a three-step methodology for institutional analysis is applied to investigate the functioning of this new setting in Haiti, using three irrigation schemes managed by farmers as case studies. First, the ...
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India's groundwater irrigation boom: can it be sustained?
Development of groundwater irrigation (GWI) has been very impressive in India, especially after the introduction of the green revolution. The area under GWI accounts for 62% of the net irrigated area today. Though GWI provides added benefits to farmers, compared to other sources of irrigation, the continuous exploitation of groundwater of late has resulted in a drastic drop in the water table, ...
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Transferring irrigation management to farmer's associations: Evidence from the Philippines
Irrigation management transfer (IMT) is an important strategy among donors and governments that aims to strengthen farmer control over water and irrigation infrastructure. In this study, we use data from a survey of 68 irrigator associations (IAs) and 1020 farm households in the Philippines to examine the impact of IMT on irrigation association performance and on rice yields. We find that the ...
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An assessment of farmers' willingness to participate in water trading in southern Spain
This study applies contingent valuation to assess farmers' willingness to trade irrigation water. We analyse farmers' willingness to pay for water and their willingness to accept the selling of water through a seasonal market, under both normal rainfall and drought conditions. A survey of 241 farmers (irrigators and non-irrigators) in the Guadalquivir River Basin and in the ...
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Turf Farm Irrigation Scheme - Case Study
Description: Irrigation of 100 hectares of turf for commercial sale. Location: Sunshine Coast SE QLD Scope:Turf Farm Irrigation Design supply installation and commissioning of pumping, pipeline and irrigation system including chemical injection for pH adjustment. Dual 30 kw electric pump sets with electrical control ,150mm PVC pipeline, Trailco 50 metre boom irrigator, ...
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Achieving financial sustainability and recovering costs in bank financed water supply and sanitation and irrigation projects
This note is a partial response to the above mentioned 2010 Independent Evaluation Group (IEG) evaluation. It covers the specific issues to be addressed in the Water supply and Sanitation (WSS) sector and in the irrigation sector in two distinct parts, because if WSS and irrigation have some common features, there are many distinctions to be made. Among the various water-using sectors, that ...
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Cost Effective Irrigation with Centre Pivot Irrigation Systems
There are certain factors that should be taken into consideration when choosing the best irrigation system for your specific requirements. Some of these factors include the type of crop you are watering, the size of the land which requires irrigation, where your water is coming from and how much labour the system requires to operate. Dragline irrigation or movable pipe systems require far more ...
By Irrirain
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Irrigation water demand and implications for groundwater pricing in Pakistan
This study employs the positive mathematical programming (PMP) approach to estimate groundwater derived demand for irrigation using a cross-sectional dataset of 200 predominantly groundwater irrigated farms from the Punjab province of Pakistan. First, we find that the PMP optimal solution uses less water than what is available (being extracted) in order to make farmers allocate all the ...
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Opportunities for saving and reallocating agricultural water to alleviate water scarcity
As water scarcity worsens globally, there is growing interest in finding ways to reduce water consumption, and for reallocating water savings to other uses including environmental restoration. Because irrigated agriculture is responsible for more than 90% of all consumptive water use in water-scarce regions, much attention is being focused on opportunities to save water on irrigated farms. At ...
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Changes in water demands under adaptation actions to climate change in an irrigation district
Climate change will affect the water balance of irrigated agriculture. Therefore, farmers and irrigation managers should consider adapting to new scenarios. Changes in water demands in a Mexican irrigation district were studied using an irrigation-scheduling model. The impact on water demands of two potential adaptation actions, adjusting planting season and using longer-season varieties ...
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Water efficiency of agricultural production in China: regional comparison from 1999 to 2002
We apply stochastic frontier analysis (SFA) techniques to a provincial level data set to measure technical and water efficiency in China's agricultural production from 1999 to 2002. The determinants of the efficiencies are identified together with the physical determinant structure of the irrigation factor, which refers to the water use per irrigated land area. The study yields the following ...
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Comparative research on water and energy-saving irrigation systems in the GAP and Aegean regions of Turkey
This research was carried out to determine the effects of furrow, sprinkler, drip, mobile nozzle, mobile drip and LEPA (Low Energy Precision Application) irrigation methods on the yields and Water Use Efficiency of cotton in the South Eastern Anatolian Project (GAP) Area and in the Aegean Region. According to the results obtained, the highest yield was produced from the drip irrigation method. ...
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