Showing results for: agriculture water Articles
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Conjunctive effect of water productivity and cultivation pattern on agricultural water management
Agricultural water resources are scarce in Iran, and agricultural water management is essential to overcome this limitation. Determination of the water productivity index (WP) using the methods of optimization of cropping patterns and optimal water allocation is the most effective tool in water management in the agricultural sector. In this study, a non-linear optimization model was used to ...
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Analysing the links between agriculture and climate change: can 'best management practices' be responsive to climate extremes?
Rural communities the world over depend on agriculturally–based livelihoods. In the Canadian prairies, access to sufficient quality and quantity of water can be challenging. Agriculture is fundamentally susceptible to access to water during critical crop germination and growth periods. Climate change models for the Canadian prairies indicate, in general, that summer growing seasons will ...
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Irrigation Systems and Practices in Challenging Environments
The book Irrigation Systems and Practices in Challenging Environments is divided into two interesting sections, with the first section titled Agricultural Water Productivity in Stressed Environments, which consists of nine chapters technically crafted by experts in their own right in their fields of expertise. Topics range from effects of irrigation on the physiology of plants, deficit irrigation ...
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Accounting for the market and non-market values of multifunctional outputs in evaluating water transfers to non-agricultural uses: empirical evidence from Taiwanese rice production
Increased demand for water for municipal and industrial uses throughout Taiwan has intensified the pressure to re-allocate water from agricultural to non-agricultural uses. The full policy implications of such water transfers must not only account for the value of lost agricultural production and income, but also any loss in the social value of multifunctional benefits from agricultural ...
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The water we eat
Agriculture imposes a heavy and growing burden on Europe's water resources, threatening water shortages and damage to ecosystems. To achieve sustainable water use, farmers must be given the right price incentives, advice and assistance. Food is intrinsically bound to human wellbeing. Besides the importance of good food for good health and the pleasure we derive from eating, agricultural ...
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The future of agriculture: saving water with Hydroponic Crops
In the hydroponic crops, the plants complete their vegetative cycle without the necessity of using the soil. The water with mineral nutrition (total or partial) is provided through a solution in which the different essential nutrients for their development are dissolved. The future of modern agriculture goes through the optimal use of one of the most limited and most important resources: water. ...
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Evaluation of water demand and supply in the south of Iraq
This paper presents results from the first study that focuses on water resources availability and demand for different purposes in the four oil-rich provinces of southern Iraq. The region accounts for 23% of the surface area and 18% of the country's population, but holds 88% of its oil. A water shortage of 430 Mm3/year for 2010 is estimated for this region where irrigation accounts for 81% of ...
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Integrated modelling of a coupled water-agricultural system using system dynamics
An integrated System Dynamics Model for the water-stressed Rosetta region, Egypt, assessing water balance, and agricultural yield and revenue to 2050, is presented. The study uses 57 simulations to better understand impacts on water, food and economic security and their interactions, in order to highlight potential pathways towards a more sustainable future for the Rosetta region. Current water ...
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Sustainable Management of Large Scale Irrigation Systems: A Decision Support Model for Gediz Basin, Turkey
While water on a global scale is plentiful, 97% of it is saline and 2.25% is trapped in glaciers and ice, leaving only 0.75% available in freshwater aquifers, rivers and lakes. About 70% of this fresh water is used for agricultural production, 22% for industrial purposes and 8% for domestic purposes. Increasing competition for water for domestic and industrial purposes is likely to reduce the ...
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Assessing the cost, effectiveness and acceptability of best management farming practices: a pluri-disciplinary approach
The AgriBMPWater project has been imagined and built in a pluri-disciplinary approach and framework, with the study of the object 'BMPs' using several disciplines at the same time (hydrology, economy, sociology, geography and agronomy). The knowledge of the object in each discipline is deepened by a fertile multi-field contribution: borders of disciplines have been broken down, allowing ...
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Marginal value of natural water in agriculture: a study in the suburbs of Mekelle City, Ethiopia
In areas where markets for natural water are lacking, information on its marginal value can be an important tool for proper pricing to achieve efficient allocation of the resource. This article investigates the marginal value of natural water (rainwater used as a proxy) in agricultural crop production in the suburbs of Mekelle City, Ethiopia, by econometrically estimating individual value ...
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China: agricultural production and groundwater
As in many parts of the People’s Republic of China, Shanxi Province is experiencing reduced water security for the agriculture sector. Changing climate conditions, including reduced rainfall, are increasing reliance on groundwater resources in the province. Unsustainable groundwater use for food production intensifies the impacts of climate change, and cost-effective adaptation responses ...
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One-Quarter of World’s Agriculture Grows in Highly Water-Stressed Areas
All living creatures need two things to survive: food and water. A new WRI analysis shows just how much tension exists between those two essential resources. A new interactive map from WRI’s Aqueduct project reveals that more than 25 percent of the world’s agriculture is grown in areas of high water stress. This figure doubles when looking at irrigated cropland, which produces 40 ...
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Effect of recycled water applied by surface and subsurface irrigation on the growth, photosynthetic indices and nutrient content of young olive trees in central Iran
Water shortage has encouraged the quest for alternative sources of water for food production and agricultural development. Recycled water (RW) is one of the most available water resources with great potential for use in farm irrigation. This experiment was carried out to investigate the use of RW as the irrigation source and its application method, subsurface leaky irrigation (SLI) system or ...
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Can water use efficiency be modeled well enough to impact crop management?
Crop water use efficiency (WUE, yield per unit of water use) is key for agricultural production with limited water resources. Policymakers and water resource managers working at all scales need to address the multitudinous scenarios in which cropping systems and amounts, timing and methods of irrigation, and fertilizer applications may be changed to improve WUE while meeting yield and harvest ...
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Aviro D16 Drone: The way to respond to agricultural losses due to pests
Agriculture is the backbone of the critical industry, especially in Southeast Asia regions, and helps sustain food security worldwide. Notably, they produce prominent productions like rice and palm oil. Each region's most scenic coastline is subjected to the country's broadest range of geographical hazards. The sector currently faces some challenges, including a shortage of human ability, ...
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The Role of Portable Soil EC Detectors in Enhancing Agricultural Productivity and Water Management
Agriculture is a crucial aspect of our global food supply chain, and proper soil management is essential for sustainable crop production. Portable soil EC detectors have become an invaluable tool for agricultural managers, providing them with real-time soil EC (electrical conductivity) readings that can help optimize crop growth and water management. In this article, we will explore the role of ...
By JXCT
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Massive freshwater gains from producing food at sea
Water scarcity may be the most limiting factor to increasing world food production. Irrigation water is already overdrawn beyond sustainable levels and to increase reliance on rainfed agriculture is risky, even more so with climate change. However, to promote deliberate food production at sea, both fished and farmed, and both plant and animal, requires no freshwater or land. The thousands of ...
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Sub-critical water as a green solvent for production of valuable materials from agricultural waste biomass: A review of recent work
Agricultural waste biomass generated from agricultural production and food processing industry are abundant, such as durian peel, mango peel, corn straw, rice bran, corn shell, potato peel and many more. Due to low commercial value, these wastes are disposed in landfill, which if not managed properly may cause environmental problems. Currently, environmental laws and regulations pertaining to ...
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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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