irrigation water requirement Articles
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GIS based graphical user interface for irrigation management
A geographic information system (GIS) based graphical user interface for irrigation management within an ArcGIS customization has been developed using Visual Basic for Applications for estimation of spatially distributed irrigation water requirements. It is capable of providing an appropriate framework for manipulating, visualizing and analyzing spatial data to support decision making in ...
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Assessment of climate change impacts on irrigation water requirement and rice yield for Ngamoeyeik Irrigation Project in Myanmar
This study analyzes the impacts of climate change on irrigation water requirement (IWR) and yield for rainfed rice and irrigated paddy, respectively, at Ngamoeyeik Irrigation Project in Myanmar. Climate projections from two General Circulation Models, namely ECHAM5 and HadCM3 were derived for the 2020s, 2050s, and 2080s. The climate variables were downscaled to basin level by using the ...
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Wavelet transform analysis of reference crop evapotranspiration during the growing season in three typical regions of Inner Mongolia, China
Management and scheduling of irrigation water requires consideration of evapotranspiration, one of the most important hydrological variables. This study investigates the variations in the daily potential evapotranspiration (ET0), and its aerodynamic (ETa) and radiometric (ETr) components in three areas (western, central and eastern) of the Inner Mongolia Autonomous Region (IMAR) during the ...
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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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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 ...
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Impacts of climate change on irrigation water requirements for rice–wheat cultivation in Bagmati River Basin, Nepal
This study highlights the spatial and temporal impacts of climate change on rice–wheat cropping systems, focusing on irrigation water requirement (IWR) in the Bagmati River Basin of Nepal. The outputs from a general circulation model (HadCM3) for two selected scenarios (A2 and B2) of IPCC and for three time periods (2020s, 2050s, and 2080s) have been downscaled and compared to a baseline ...
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Modeling the impacts of increase in temperature on irrigation water requirements in Palakkad district: a case study in humid tropical Kerala
Rise in temperature is one of the predicted impacts of climate change with significant implications on water resources management. An attempt has been made to calculate the water requirement of crops in different agro-ecological zones of Palakkad district in humid tropical Kerala using the CROPWAT 8.0 model. Sensitivity analysis was done for a simulated rise in temperature from 0.5 to 3.0 ...
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Irrigation water requirements for seed corn and coffee under potential climate change scenarios
The impact of potential future climate change scenarios on the irrigation water requirements (IRRs) of two major agricultural crops (coffee and seed corn) in Hawai'i was studied using the Irrigation Management System (IManSys) model. In addition to IRRs calculations, IManSys calculates runoff, deep percolation, canopy interception, and effective rainfall based on plant growth parameters, site ...
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Reuse: Agriculture
Agronomic and water quality considerations Water use for agricultural irrigation is the largest component of water use in most countries and is more than 70% of human water use in drier countries. Use of recycled water for irrigation requires consideration of soil types, groundwater levels, soil and water chemistry, nutrient loads, limits on chemicals, the salt tolerance of crops, the ...
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Ecohydrological modeling of irrigation scheduling of maize using time series analysis in the temperate region of Kashmir valley, India
Water, one of the most crucial inputs of irrigation, should be utilized judiciously to identify appropriate strategies for planning and management of irrigated farmland. The present study was conducted for the crop maize (Zea mays), grown mainly in the rabi-season (July–October), to evaluate the irrigation water requirements in the temperate region of Kashmir Valley, India during the ...
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Assessment of climate change impact on crop yield and irrigation water requirement of two major cereal crops (rice and wheat) in Bhaktapur district, Nepal
Rice and wheat are major cereal crops in Nepal. Climate change impacts are widespread and farmers in developing countries like Nepal are among the most vulnerable. A study was carried out to assess the impact of climate change on yield and irrigation water requirement of these cereal crops in Bhaktapur, Nepal. Laboratory and soil-plant-air-water analysis showed silt-loam being the most ...
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The optimization of the paddy field irrigation scheduling using mathematical programming
In planting rice, a significant amount of irrigation water is required to prepare the farmlands and do transplanting and this is directly related to the number of machines and workers available; that is, the more the length of plowing and transplanting process due to the lack of required machinery and labor, the more the water volume consumed. Therefore, in such conditions, it is important to ...
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Power Z Grow liquid growth enhancer increases strawberry yield and nutrition
Fruit growers among other agriculture growers across the world are looking to surmount the challenge of increasing crop production with a dramatic reduction of synthetic agrochemical use and a reduction of environmental nutrient leaching in ground water and surface water sources. Many growers are pursuing ways to integrate more sustainable agriculture practices that will simultaneously enhance ...
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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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Improving alfalfa irrigation in The west
Alfalfa grown for forage is a major crop in many areas of the western United States. In the arid and semi–arid west, irrigation is required to obtain economic alfalfa yields. Because alfalfa is a perennial crop with a potentially long growing season, it can use a substantial amount of water. Alfalfa production in Imperial County, CA, has been valued at more than $170 million dollars for ...
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Subsurface drip irrigation; the future of Irrigation is Underground
Placing water beneath the soil surface via buried lines is slowly becoming the "preferred choice" of many vineyard irrigators. The reasons are many, including the absence of surface evaporation, as well as reduced weed growth, herbicide washout, maintenance, injury, and vandalism found with using conventional water application systems. The advantages of subsurface drip add to reduced cost for ...
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Five benefits of agricultural smart irrigation
Population growth and an increase in irrigated agricultural land lead to a greater need for water and energy, at a time when global warming and rising greenhouse gas emissions are posing a real environmental challenge. In this context, the benefits of smart irrigation, i.e., using the exact amount of water needed for each crop, help to optimize this scarce resource. If we take a closer look at ...
By Idrica
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Optimizing Irrigation Efficiency with Smart Soil Sensor Systems
In the face of growing water scarcity and the pressing need for sustainable agricultural practices, optimizing irrigation efficiency has become a paramount concern for farmers worldwide. Traditionally, irrigation scheduling has relied on estimates and fixed schedules, often leading to overwatering or underwatering, resulting in wasted water, nutrient leaching, and reduced crop yields. The advent ...
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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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Leveraging Water Quality Sensors for Optimal Irrigation Practices
Water is a precious resource, especially in agriculture where efficient irrigation practices are essential for crop growth and yield. With the increasing global demand for food production and water scarcity challenges, optimizing water use has become critical. In recent years, the advent of water quality sensors has revolutionized irrigation practices by providing real-time data on water quality ...
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