3 edition of Influences on the efficiency of irrigation water use found in the catalog.
Influences on the efficiency of irrigation water use
by International Institute for Land Reclamation and Improvement in Wageningen, The Netherlands
Written in English
Includes bibliographical references (p. 111-113)
|Series||Publication -- 51., Publication (International Institute for Land Reclamation and Improvement) -- 51.|
|Contributions||International Institute for Land Reclamation and Improvement.|
|The Physical Object|
|Pagination||150 p. :|
|Number of Pages||150|
Quantifying the influence of driving factors on irrigation water productivity (IWP) is vital for efficient agricultural water use. This study analyzed contributions of agronomic practice and climatic factors to the changes of IWP, based on the data from to in Hexi Corridor, Northwest China. Topic: Major crops-cropping patterns in various parts of the country, – different types of irrigation and irrigation systems storage, transport and marketing of agricultural produce and issues and related constraints; e-technology in the aid of farmers. Conservation, environmental pollution and degradation, environmental impact assessment. 5. Unscientific use of irrigation water is giving.
Learn how to evaluate the efficiency of in-canopy sprinklers. Converting Center Pivot Sprinkler Packages: System Considerations, G PDF version ( KB; 4 pages) Describes system-oriented factors that should be considered when changing sprinkler packages on a center pivot irrigation system. Water Loss from Above-Canopy and In-Canopy. The term irrigation efficiency expresses the performance of a complete irrigation system or components of the system. Irrigation efficiency is defined as the ratio between the amount of water used to meet the consumptive use requirement of crop plus that necessary to maintain a favourable salt balance in the crop root zone to the total volume of water diverted, stored or pumped for irrigation.
ANALYSIS OF FACTORS THAT INFLUENCE THE USE OF IRRIGATION TECHNOLOGIES lower total farm-level water use or achieve real water savings in terms of reductions in consumptive water use (Pfeiffer and Lin, ). The focus on more efficient irrigation technologies, however, may miss. Partial water use efficiency increased as irrigation rate decreased but was not affected by the other factors significantly. Trials will be repeated in and in Logan and in Vernal, Utah but preliminary results suggest modifying irrigation rates might enable conservation more effectively than some crop, soil, and irrigation technologies.
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Efficient irrigation depends on a balance between the atmospheric and edaphic (soil) conditions. Atmospheric precipitation and evaporation play important roles as does the water-holding characteristics of the soil. The selected forage species will also add new characteristics that influence water utilization and efficiency, like root depth.
Book Title: NA: Year Published: Month Published: NA: Author: Domuta, C. Book Group Author: NA: Abstract: Results are presented of a long-term trial conducted duringin Oradea, Romania, on preluvosoil, focusing on the influence of irrigation on the microclimatic conditions, water consumption, water use efficiency and yield of potato.
Book Title: NA: Year Published: Month Published: NA: Author: Al-Naeem, M. Book Group Author: NA: Abstract: This study was conducted to study the performance of lucerne under water stress conditions and determine water use efficiency (WUE) for optimal forage production under the arid climatic conditions of Al-Ahsa, Saudi Arabia, having limited irrigation water supplies.
4. Impacts of irrigation efficiency improvement on water use and consumption. The study considered three typical irrigation techniques—furrow, sprinkler, and drip, whose standard efficiencies were set asandrespectively, by referring to the work of Berbel et al.
().The agro-economic model was first applied to the WUU to investigate the impacts of irrigation Cited by: 4. Irrigation efficiency or water-use efficiency can be defined in different ways, however, depending on the nature of the inputs and outputs considered.
For example, one can define as an economic criterion of efficiency the financial return in relation to the money invested in the installation and operation of a water-supply system.
Understand the different interpretations of irrigation efficiency and the application of productivity terms e.g. water use efficiency, crop water productivity, net efficiency etc.
Calculate optimal water requirements for optimal crop yields. Define the controlling factors in maintaining water application efficiency and the impacts of different. Influences on the efficiency of irrigation water use / Wouter Wolters International Institute for Land Reclamation and Improvement Wageningen Wikipedia Citation Please see Wikipedia's template documentation for further citation fields that may be required.
Efficient transport of irrigation water 4. Use of runoff or tailwater 5. Management of drainage water A well designed and managed irrigation system reduces water loss to evaporation, deep percolation, and runoff and minimizes erosion from applied water.
Applica-tion of this management measure will reduce the waste of irrigation water. Rice is one of the most important food crops in China and is also the largest user of agricultural water.
Experiments were conducted for two consecutive years at two locations of Jiangsu province to study the effect of four irrigation methods with four replications (shallow water irrigation (FSI), wet-shallow irrigation (WSI), controlled irrigation (CI), and rain-catching and controlled.
the micro-efficiencies of irrigation water use. Nested system efficiency (NSE) is the efficiency of two or more connected system depending on a single source of water supply. Net water requirement (NWR) is the amount of water required to replenish evapotranspiration and deep percolation/seepage or root zone soil moisture deficit.
The irrigation method also had a relevant influence on the irrigation water use. This influence was only statistically significant in the second year. The efficiency of the irrigation water use was higher with the SDI system than with the DI system, especially in the second year.
Get this from a library. Influences on the efficiency of irrigation water use. [Wouter Wolters; International Institute for Land Reclamation and Improvement.].
irrigation water by the user is a necessary activity in our existence as a society. Competition for a limited water supply for other uses by the public require the irrigation water user to provide much closer control than ever before. The importance of irrigated crops is extremely vital to the public's subsistence.
Irrigation Efficiency: A Bibliography, Volume 1 Issue of Bibliography series Irrigation Efficiency: A Bibliography, Water Resources Scientific Information Center: Author: Water Resources Scientific Information Center: Publisher: Water Resources Scientific Information Center, Original from: Cornell University: Digitized: Sep 4, Improve water-use efficiency and increase crop yield with this guide to on-farm irrigation management.
Learn how irrigation system maintenance and management can reduce runoff, deep percolation and spray losses; improve crop yields; minimize salinity buildup in the soil; and prevent pesticides and fertilizers from contaminating water bodies. Evapotranspiration (ET) and the Factors that Affect ET Rates 2.
Overview of “Water Budget Approach” for Efficient Irrigation Management 3. Soil Moisture Sensing Instruments Commonly Used for Irrigation Schedules 4. Overview of Dry Farming on the Central California Coast 5. Nitrate Contamination of Groundwater Water use efficiency of winter wheat ranged from – kg m –3, and summer maize ranged between – kg m –3 under limited irrigation condition in our study (Figure 2).
Zwart and Bastiaanssen reported that globally measured average WUE was (–) kg m –3 for wheat, and (–) kg m –3 for maize. Irrigation Efficiency G Connellan 2 1. WATER MANAGEMENT ISSUES Water Management Plan The era of unlimited high quality water available for irrigation has passed in Australia.
There is pressure to ensure that water used for irrigation in urban landscapes is not wasted and is used in an environmentally responsible manner. water demand. This increasing pressure on water resources urges enhancing water use efficiency. Water use efficiency has a significant role in addressing the challenges faced by the agricultural water use.
While irrigation can increase yields of most crops by to percent, water. The ratio of the amount of water available (output) to the amount of water supplied (input) is known as Irrigation Efficiency. It is expressed in percentage. The following are the various types of irrigation efficiencies: (a) Water Conveyance Efficiency: (ηc).
(b) Water Application Efficiency: (ηa). (c) Water Use Efficiency (ηu): (d) Consumptive use Efficiency (ηcu). Book Detail: Language: English Pages: Author: TNAU Price: Free How to download PDF Book [Full Guide] Course Outline: Water Management including Micro Irrigation. DEVELOPMENT OF IRRIGATION IN INDIA – WATER RESOURCES, IRRIGATION POTENTIAL AND IRRIGATION SYSTEMS OF INDIA AND TAMIL NADU.Efficiency of irrigation depends on soil texture, method of irrigation and quantity of water stream.
Efficiency of irrigation is possible through the following formula (Surajbhan ): After estimation of efficiency of irrigation, the interval between irrigation is .The efficient use of water in irrigation: principles and practices for improving irrigation in arid and semi-arid regions (English) Abstract.
This book is in the nature of a primer, providing a basic review and analysis of the principles governing soil-crop-water-climate relationships, irrigation and the efficient utilization of water in arid and semiarid regions.