Irrigation systems
Field evaluation of various mathematical models for furrow and border irrigation systems
... In the present study, three mathematical models in the SIRMOD package including hydrodynamic (HD), zero inertia (ZI), and kinematic wave (KW) were tested by using the data from several field experiments for both border ...
11
Optimizing overhead irrigation systems
... CP&LM irrigation systems will advise prospective buyers that a good understanding only develops after 2-3 seasons of ...surface irrigation systems. Growers with existing surface ...
8
Automatic Controls for Surface Irrigation Systems
... • Automatic controls for surface irrigation systems consist of a combination of gates, structures, valves, timers, soil moisture sensors and related de- vices. These can be either semi-a[r] ...
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The Effect of Different Irrigation Systems, Discharge, and Irrigation Intervals on Green Onion Growth and Yields
... of irrigation systems and different discharges and irrigation intervals on the stem length of the green onion ...drip irrigation system was superior in getting higher stem length stood ...drip ...
8
Recirculating Farm Irrigation Systems
... Recirculating irrigation systems can raise water application.. efficiencies to 80 percent.[r] ...
14
Simulation modelling in surface irrigation systems
... As part of an on-going project at USQ aimed at modernising the furrow system, a computer simulation model for adaptive real-time control is currently under development. Although the model is initially being developed for ...
8
Satellite Derived Geospatial Irrigation Performance Indicators for Benchmarking Studies of Irrigation Systems
... of irrigation infrastructure and its efficient management is the primary concern for sustainable food pro- ...of irrigation infrastructure creation, its utilization, diagnostic evaluation of the various ...
13
Momentarily-Energized Pilot Valves for Irrigation Systems
... The force required to shift the valve spool varies with both operating pressure and elapsed time from the previous operation.. Tests were conducted to determine the relative magnitude of[r] ...
5
Feedback control of surge irrigation systems
... Using the feedback data and field parameters provided by the operator, the computer controls a surge valve for the advance phase of irrigation and determines cycle times during the cutba[r] ...
8
Improving Farm Irrigation Systems by Automation
... Farm systems using buried pipelines and gated pipe for distribution can be readily automated by simply placing Snake River automatic irrigation valves(13), in the surface line, or by att[r] ...
12
DEVELOPMENT OF 0.126 HECTARE SPRINKLER IRRIGATION SYSTEMS
... sprinkler irrigation system was not only developed to improve the standard of education and exhibition but could also be used for the production of food crops, citrus and vegetables in places and periods of ...
7
Short term planning and operation of irrigation systems
... These methods were evaluated for their suitability under Victorian (Australia) conditions using three smdy sites. Techniques were developed to estimate certain variables of these metho[r] ...
465
Surface Irrigation Systems
... By properly matching the intake rate of soil with stream size, area to be irri- gated, depth of water to be applied, and slope of the land, fairly uniform appli- cation can be obtained t[r] ...
20
Automatic Furrow Irrigation Systems
... 1 so that the furrow stream is reduced from primary to secondary flow half-way through the irrigation set, the percent- age reduction in the amount of water applied, PQ (no change in tim[r] ...
5
Design of Recirculating Irrigation Systems
... 3 Maximum improvement in total water use on the farm will result from using stored runoff water to achieve a reduced stream size for cutback irriga- tion; i.e., stored runoff water is pu[r] ...
5
‘Jalayagnam’ to Quench the Thirst of Farmers for Irrigation in Andhra Pradesh: Wither Regional Disparities
... ailing irrigation systems rather than strengthening formal institutional structures; b) in contrast with the fact that WUAs are to be promoted as non-political institutions, the political and elite sections ...
21
Greenhouse gas implications of water reuse in the Upper Pumpanga River Integrated Irrigation System, Philippines
... world‟s irrigation water is used for ...malfunctioning irrigation systems, now threatens the viability and sustainability of rice production (Rijsberman, ...of irrigation facilities for water ...
20
Vol 42, No 2 (2012)
... of irrigation systems in South Wallachia and ever smaller areas that apply to irrigation, lowers the total yields of all crops (Nicolaescu ...
7
Sustainable Mangement of Drainage Water of Fish Farms in Agriculture as a New Source for Irrigation and Bio Source for Fertilizing
... Irrigation system components consisted of a control head and a pumping unit. It consisted of submersible pump with 45 m 3 /h discharge driven by electrical engine back flow prevention device, pressure regulator, ...
14
Technological change in the Australian irrigation industry: implications for future resource management and policy development
... flood systems (border check and surge) or between the two pressurised systems (sprinkler and subsurface ...pressurised systems used 20% (2.0 ML/ha) less water than the flood systems in both ...
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