Irrigation Control Articles
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Regulated Deficit Irrigation for Wine Grapes – Balancing Canopy, Yield and Quality
Sebastian Braum, Ph.D., is WaterBit’s director of soil science and agronomy. He is writing a series of posts for our blog that delve into irrigation-related topics. In the piece below, he discusses deficit irrigation in wine grapes. Dr. Braum holds a doctorate in soil chemistry from the University of Wisconsin-Madison and he studied soil science, plant nutrition, agronomy and viticulture at ...
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Cyanobacteria & Odor Control In Irrigation Ponds - Case Study
SolarBees continue to provide water quality benefits more than 10 years after deployment. Topics: cyanobacteria, odor control, effluent storage basins, irrigation, reservoir circulation. Reservoir Overview: Effluent storage basins used for irrigation. Pond #4: ~36 Surface Acres Pond #5: ~29 Surface Acres. Pre-Deployment Conditions: This location had a history of cyanobacteria ...
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International chocolate company Giant lysimeters for cocoa irrigation research - Case Study
On of our biggest projects till now has been planning and installing a system of 24 giant lysimeters in a cocoa research farm. Due to climate changes cocoa plantations are struggling to adjust to the new conditions in the tropical areas. This lysimeter system was designed according to our clients needs, determined to find the best irrigation plan for cocoa plantations around the world. ...
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Cannabis Irrigation-Israel
Getting to Know Cannabis Farming Israel’s agricultural industry is ripening for the beginning of medical cannabis export, with the expected passage of medical export legislation by the end of the year. The timing is particularly fruitful for growers who are interested in succeeding in a new venture that is still in its infancy. The rewards are also high: Israel’s Health and Finance ...
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Drip Irrigation Meets Drivable Grass
Drivable Grass® has originally been designed with the intention to have commonly used spray irrigation systems installed underneath the product, including fitting sprinkler heads through cut voids of the mat or spraying from outside the installation. The conventional overspray irrigation system has been used successfully with Drivable Grass® for many years. Soil Retention, manufacturer ...
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Effect of AgraGel T-400 on tomato crops, U. of Valparaiso, Chile - Case Study
Introduction At present, a great part of vegetable production in Chile is dedicated to industrial agronomy and one of the most important products is the tomato crop for industrial processing. Chile has a capacity of 180,000 tons of tomatoes per year, which is equivalent to 12,000 hectares of crop land. Among canned products tomato paste represents 38%. This is an important employment generating ...
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CSE algorithm: ‘canal survey estimation’ to evaluate the flow rate extractions and hydraulic state in irrigation canals
One of the main problems in water management of irrigation systems is the control of the equitable distribution of water among different orifice offtakes. The difficulty of managing a canal is partly caused by the lack of knowledge of the canal state because the scheduled demand is often not fulfilled, since farmers extract more water than is scheduled and it is impossible for the watermaster ...
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Factors affecting adoption of agricultural water-saving technologies in Heilongjiang Province, China
This study aimed to find key factors influencing the decisions of farmers regarding the adoption of water-saving practices including the rice-controlling irrigation technique, drip irrigation under plastic film, and sprinkling irrigation in Heilongjiang Province, China. It was found that reliability of the water source and government promotion had very significant and positive associations with ...
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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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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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Numerical simulation of bare soil water and heat flow under an automated irrigation system
Modern irrigation techniques use automated systems where irrigation schedules are controlled according to certain criteria. The objective of this study is to numerically estimate irrigation events, water content and temperature distributions, evaporation, drainage, and soil water under closed loop automated irrigation systems of a bare soil. The automated irrigation system is activated and ...
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The effect of winter flood irrigation with saline water on groundwater in a typical irrigation area
Flood irrigation in the winter has been widely applied in northwest China for several years, but little attention has been paid to the flood irrigation program to date. In order to seek a reasonable irrigation quota, a flood irrigation experiment using two common quotas (1,800 and 1,200 m3 ha−1) was conducted in an area irrigated by saline water in the Nanjiang basin with shallow ...
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Singer`s algorithm controls farm irrigation - Case Study
Their Challenge On the San Xavier Reservation near Tucson, Arizona, the Tohono O’odom Nation grows organic alfalfa for racing horses plus fruits and vegetables. Thanks to Singer Valve, San Xavier is home to a sophisticated flood irrigation system that consists of one 16” (400 mm) globe style and eight 16” angle style valves and five storage tanks each with its own control ...
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Irrigation planning for sustainable rain-fed agriculture in the drought-prone Bundelkhand region of Madhya Pradesh, India
The recent spells of recurrent and consecutive droughts in the Bundelkhand region in Central India have led to uncertain rain-fed agriculture and its sustainability. Adequate knowledge of starting dates and lengths of dry spells has a considerable importance in rain-fed agriculture, irrigation planning, and various decision-making processes. The long dry spells incur heavy costs to the affected ...
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Irrigation demand modelling using the UKCP09 weather generator: lessons learned
The determination of irrigation demand is typically based on crop modelling using a long historic record of local daily weather data. However, there are rarely adequate weather station records near to given sites; often any local records cover a limited number of years, are incomplete, costly or are of poor quality. This paper examines whether version 1 of the UKCP09 weather generator can ...
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The use of treated wastewater and fertigation in greenhouse pepper crop as affecting growth and fruit quality
The performance and suitability of tertiary treated wastewater (TW) and/or fertigation (F) in pepper plants were studied over a 4-month period in greenhouse conditions. Four treatments were used consisting of (1) water, (2) water + F, (3) TW, and (4) TW + F. The F and/or TW application increased plant height and plant biomass compared with the control plants (irrigated with water) ...
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A critical comparison of using a probabilistic weather generator versus a change factor approach; irrigation reservoir planning under climate change
In the UK, there is a growing interest in constructing on-farm irrigation reservoirs, however deciding the optimum reservoir capacity is not simple. There are two distinct approaches to generating the future daily weather datasets needed to calculate future irrigation need. The change factor approach perturbs the observed record using monthly change factors derived from downscaled climate ...
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Sustaining participation in irrigation systems of Ethiopia: what have we learned about water user associations?
Community participation, defined as engaging users of schemes in the decision-making processes for the planning and implementation of irrigation projects, is critical for the sustainability of irrigation schemes. This study was carried out in three regional states of Ethiopia to investigate the contribution of water user associations (WUAs) to sustaining participation in irrigation projects. ...
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Egypt: The role of water users` associations in reforming irrigation
Egypt’s water resources are severely constrained. This calls for increasing the water use efficiency by improving irrigation management practice, as the agriculture sector is the main user of water resources. Much of the irrigation infrastructure is elderly and in need of rehabilitation. The irrigation improvement program (IIP) is one of the large-scale projects to help Egypt to sustain its ...
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Two Approaches for Optimizing Water Productivity
Agricultural Research Service researchers in Bushland, Texas, are helping farmers make the most of their water supplies in a region where they depend on the Ogallala Aquifer, a massive underground reservoir under constant threat of overuse. Steve Evett, Susan O'Shaughnessy, and their colleagues at the Conservation and Production Research Laboratory are developing and testing soil-water and ...
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