Design of Low-Head Bubbler Irrigation System

2016 ◽  
pp. 123-194
Keyword(s):  
Irrigation System ◽  
Low Head

Low-Head Gravity Bubbler Irrigation System

2016 ◽  
pp. 387-411 ◽  
Author(s):  
Peter Waller ◽  
Muluneh Yitayew
Keyword(s):  
Irrigation System ◽  
Low Head

Effect of Mulching on Chickpea under Low Head Drip Irrigation System

2019 ◽  
Author(s):  
K. V.R. Rao ◽  
Pushplata Aherwar ◽  
Suchi Gangwar ◽  
Deepika Yadav
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Dry Weight ◽  
Growth And Yield ◽  
Water Tank ◽  
Drip Irrigation System ◽  
Plastic Mulch ◽  
Net Returns ◽  
Yield Parameters ◽  
Low Head

The effect of plastic mulch on chickpea (Cicer arietinum L.) cultivation under low head drip irrigation systems was studied at ICAR-Central Institute of Agricultural Engineering, PFDC, Bhopal during 2018-19. Drip irrigation system was operated by placing water tank at a total water deliver height of 3 m and varied heads to 2.5 m and 2.0 m to find out the value of coefficient of uniformity under these heads. The experimental treatments consisted in five levels by varying irrigation methods: Flood irrigation, irrigation with drip laid on raised beds, irrigation with drip laid on raised beds covered with black mulch, irrigation with drip laid on raised beds covered with silver mulch and irrigation with drip laid on raised beds covered with white mulch. Growth and yield parameters of chickpea viz., plant height (cm), number of branches per plant, plant dry matter (g/plant), effective nodule per plant and nodules dry weight (mg/plant), number of pods per plant, 100 seed weight, seed yield (kg/ha) and harvest index were highest under silver plastic mulch laid on raised beds, irrigated with drip as compared to black plastic mulch and white plastic mulch treatments. Lowest growth and yield parameters were recorded in the flood irrigated treatment. Water Use Efficiency was highest under silver plastic mulch (17.21kg/ha mm) and lowest under flood irrigated condition (3.74 kg/ha mm). Net returns were higher in the treatment under the silver mulch (Rs/ha 77939) and followed by black mulch (Rs/ha 67179) with lowest net returns in the flood irrigated condition (Rs/ha 32690).

scholarly journals PERFORMANCE EVALUATION OF LOW HEAD BUBBLER IRRIGATION SYSTEM

2011 ◽  
Vol 2 (9) ◽  
pp. 925-938
Author(s):  
Hashem A.A. ◽  
M.A. Rashad ◽  
M.H. Ramadan ◽  
S. M. Abd El-Hak
Keyword(s):  
Performance Evaluation ◽  
Irrigation System ◽  
Low Head

To the issue of water treatment by hydrocyclone on the systems of the combined irrigation

2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova
Keyword(s):  
Water Treatment ◽  
Organic Compounds ◽  
Irrigation Water ◽  
Irrigation System ◽  
Petroleum Products ◽  
Cylindrical Part ◽  
Agricultural Landscapes ◽  
Treatment Unit ◽  
Drain Pipe ◽  
Irrigation Network

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.

Spray irrigation on dairy pastures - efficient or not?

2006 ◽  
pp. 177-181
Author(s):  
S.M. Thomas ◽  
D. Bloomer ◽  
R.J. Martin ◽  
A. Horrocks
Keyword(s):  
Irrigation System ◽  
Groundwater Resources ◽  
Dairy Farmers ◽  
Large Variability ◽  
Irrigation Application ◽  
Irrigation Uniformity ◽  
Survey Results ◽  
Spray Irrigation ◽  
Use Efficiency ◽  
Distribution Uniformity

Applying water efficiently is increasingly important for dairy farmers and other users of surface and groundwater resources to maintain sustainable production. However, irrigation is rarely monitored. We used a questionnaire survey and measurements of five spray irrigation systems working in normal farm conditions to make observations on how efficiently irrigation is being managed. Survey results from 93 dairy farmers showed that, although the farmers believe they know how much water is being applied during irrigation, only 60% make measurements, and about 18% measure irrigation uniformity. Catch-can measurement of irrigation application depth for the different spray systems indicated large variability in application depths during irrigation, and field distribution uniformity ranged greatly between the different systems, decreasing in the order of centre pivots >travelling irrigators> K-line. Changes in irrigation system settings were sometimes made without considering application depths or uniformity. If our five case studies are typical, they may explain the large range of seasonal irrigation amounts recorded in the survey. We recommend that farmers monitor irrigation application depths and uniformity to help manage irrigation water efficiently and to help them estimate the value of irrigation to their enterprise. Keywords: distribution uniformity, water use efficiency, catch cans

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