irrigation water Articles
-
Study on the joint probability distribution of irrigation water volume and irrigation water efficiency
Using the copula method, the joint probability distribution of irrigation water volume and efficiency is constructed, and their joint return period is also described to reveal the encounter probability of irrigation water volume and efficiency. Furthermore, the conditional probability of irrigation water efficiency with different water volumes is built to show the quantitative effects of flow ...
-
Physiological interaction of soil moisture deficit and plant population on yield and yield components relationships of maize ( Zea mays L.)
Maize ( Zea mays L.) crops were grown at Coimbatore in the years 2009 and 2010 during the kharif season. The treatments imposed were three soil moisture levels: 100% irrigation water supply (0.8 IW/CPE ratio), 75% irrigation water supply (0.6 IW/CPE ratio) and 50% irrigation water supply (0.4 IW/CPE ratio). The plant density treatments adopted were normal spacing (60 × 20 cm), narrow ...
-
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 ...
-
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. ...
-
Raising water productivity
With water shortages emerging as a constraint on food production growth, the world needs an effort to raise water productivity similar to the one that nearly tripled land productivity during the last half of the twentieth century. Worldwide, average irrigation water productivity is now roughly 1 kilogram of grain per ton of water used. Since it takes 1,000 tons of water to produce 1 ton of grain, ...
-
Comparative advantage for the areas irrigated with underground blue water in North China Plain
North China Plain is one of the most important grain-producing areas in China. Because of unevenly distributed precipitation in this semi-arid area, crop production largely relies on underground blue water (UBW) to irrigate, overexploitation of which causes a lot of environmental problems. In this paper, we first defined the representative division of winter wheat irrigation water production ...
-
Irrigation water pricing policy for water demand and environmental management: a case study in the Weihe River basin
Irrigated agricultural production is the backbone of the Chinese agricultural sector, but the increasing demand for irrigation water, its inefficient utilization and overuse of chemical inputs, accompanied by the short supply of water resources have endangered the nation's agricultural and environmental sustainability. The Chinese government has proposed a water pricing policy with the ...
-
The effects of surface water abstraction for rice irrigation on floodplain fish production in Bangladesh
Abstraction of surface water for irrigation poses a serious threat to the sustainability of floodplain fisheries in Bangladesh. Previous fisheries research has accorded a central role to dry-season (Rabi) water maintenance in safeguarding the health of the fishery, but rice irrigation water abstraction dries up water bodies at a rapid rate. Having reviewed various aspects of this water ...
-
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 ...
-
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 ...
-
Self-Cleaning Irrigation Water Filters
One of the critical components of successful agriculture is irrigation, which ensures that crops receive the water they need to thrive. However, using untreated or impure water for irrigation can have detrimental effects on crops and the environment. Self-cleaning irrigation water filters have emerged as a groundbreaking solution to this problem. The Importance of Self-Cleaning Irrigation Water ...
-
Understanding irrigation water use efficiency at different scales for better policy reform: a case study of the Murray-Darling Basin, Australia
This paper examines water use efficiency and economic efficiency with a particular focus on the Murray-Darling Basin of Australia and the stated policy goal of increasing environmental flows of water in the Basin. The different measures of efficiency are explained, and their implications for water reform and the efficacy of market based approaches to addressing the water scarcity issues and ...
-
Morocco: Irrigation water pricing policy of large scale irrigation projects
In Morocco, the consequence of increased industrialization and a rapidly growing population accentuated by a progressive shift from rural to urban living. This resulted in the growth of requirements for the quality and quantity of water resources, their more intensive and comprehensive use. The government policy in the agricultural sector has always favored investments in the irrigation ...
-
Project - Direct solar pumping - C.R. Mérida
Irrigation system. Isolated photovoltaic generator system for water supply pumping station Type of reservoir: Irrigation water reservoir Location: Merida, Spain Usage: Solar pumping Nominal Power: 500 Kw Floats:3.300 units Year of installation:2019 ...
By Isigenere
-
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 ...
-
A comparative history, from the 16th to 20th centuries, of irrigation water management in Spain, Mexico, Chile, Mendoza (Argentina) and Peru
This paper explores the long-term development of irrigation system management, and looks at the influence of legislation, irrigation system size, scalar stress and polarized land tenure in the existence and success of self-management. The case studies are drawn from regions of the former Spanish Empire. Hispanic America, between the 16th and early 19th centuries, as part of the Spanish Empire, ...
-
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 ...
-
Project - Direct solar pumping. Private, Huercal - Overa, Almería
Direct solar pumping. Private Modernization of Irrigation System. Isolated Photovoltaic Generator System for Water Supply Pumping Station Type of reservoir: Irrigation water reservoir Location: Huercal -Overa, Almería Usage: Solar pumping Nominal Power: 27.5 KWp Floats: 208 units Year of installation: 2018 ...
By Isigenere
-
Can drip irrigation technology be socially beneficial? Evidence from Southern India
Drip irrigation has received considerable attention from policy makers because of its significant contribution towards resource saving, enhanced agricultural productivity and environmental sustainability. This paper explores the potential benefits of drip irrigation adoption by addressing the social benefits and costs in Southern India. The study shows that adoption of drip irrigation technology ...
-
Assessment of the performance of participatory irrigation management in Antalya, Turkey
This study examined 29 irrigation organizations in the province of Antalya, Turkey. Sufficiency, efficiency, sustainability and producer satisfaction were used as criteria for the productivity of irrigation networks. Differences in the irrigation organizations were compared and analyzed using a number of performance indicators. It was found that the irrigation associations had an irrigation ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you