Irrigation Networks Articles
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The Importance Pressure Management on Agricultural Irrigation Applications
Irrigation systems world wide are dependent on sound pressure management techniques which are normally incorporated at the design phase of the project. This holds true whether you are designing agricultural irrigation systems incorporating drip, micro spray, sprinkler or pivot systems and has similar ramifications for turf irrigation or even golf course irrigation systems. Automatic Control ...
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Dynamics of irrigation management and interlinked agrarian relations: empirical findings from a canal irrigation command in Odisha, India
The literature on the dynamics of irrigation management, in terms of the analysis of interlinked agrarian relations, is very limited. This paper attempts to get a detailed grassroots view of farmers' knowledge of various issues pertaining to the relationship between agrarian structure, land and water. Data from 200 sample cultivators of different farm sizes and 20 landless labour ...
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Root intrusion prevention
Nothing spells the death of a subsurface drip irrigation (SDI) system taster than root intrusion. With more growers placing drip irrigation lines below the soil surface, the need for a better understanding of how to keep roots out of drip emitters has also become more important. Work done at The ("enter for Irrigation Technology (GIT) over the past 10 years has given us some insight into how to ...
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Extracting physical homogeneous regions out of irrigation networks using fuzzy clustering method: a case study for the Ghazvin canal irrigation network
Improving the current operation and maintenance activities is one of the main steps in achieving higher performance of irrigation networks. Improving the irrigation network management, influenced by different spatial and temporal parameters, is confronted with special difficulties. One of the controversial issues often faced by decision-makers is how to cope with the spatial diversity of ...
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L.J.Seeds, Australia Pty Ltd A100 case study
Subject: Amnite A100 Application: Continental Cucumber Environment: Greenhouse, Plastic Covered Growing System: Hydroponics, Run To Waste Media: Coal Ash Reservoir: Yes, 2.5cm Deep Plant density: 2.5 Plants Per Square Metre Application Frequency: Weekly Application Method: Via Irrigation Lines Direct To Root System Observations Amnite A100 was introduced to the plants on the 25th April. Weather ...
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A comparative history, from the 16th to 20th centuries, of irrigation water management in Spain, Mexico, Chile, Mendoza (Argentina) and Peru
This paper explores the long-term development of irrigation system management, and looks at the influence of legislation, irrigation system size, scalar stress and polarized land tenure in the existence and success of self-management. The case studies are drawn from regions of the former Spanish Empire. Hispanic America, between the 16th and early 19th centuries, as part of the Spanish Empire, ...
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Analysis of the hydraulics of the irrigation canals of Otrar, Kazakhstan
Surveys of relic canals at the Oasis of Otrar in Kazakhstan have been used to re-construct patterns of agricultural water use for irrigation between AD700 and AD1500. Hydraulic simulation software was used to calculate the water carrying capacity of historical irrigation canal networks. An analysis of modern day irrigation systems has enabled the calibration of crop water use models and an ...
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Waterquality in irrigation canals and boreholes - Greece
Background Kavala is located in the North East of Greece, 680 km from the capital Athens. The population of the prefecture of Kavala is around 85,000 people. The River Nestos which flows through this prefecture is very important for the agriculture of the area. To allow for a fair distribution of the water for irrigation purposes, a number of Boreholes and canals have been established. The ...
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Transferring irrigation management to farmer's associations: Evidence from the Philippines
Irrigation management transfer (IMT) is an important strategy among donors and governments that aims to strengthen farmer control over water and irrigation infrastructure. In this study, we use data from a survey of 68 irrigator associations (IAs) and 1020 farm households in the Philippines to examine the impact of IMT on irrigation association performance and on rice yields. We find that the ...
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Incentives and instruments for sustainable irrigation
This book looks at Sustainable Irrigation in a holistic way, considering the multidisciplinary objectives of sustainable agriculture, sustainable water management, sustainable water infrastructure, sustainable irrigation communities and a sustainable environment, the need to reallocate water between competing users, and the need for water and food security in an environment of scarcity. It does ...
By WIT Press
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Our global Ponzi economy
Our mismanaged world economy today has many of the characteristics of a Ponzi scheme. A Ponzi scheme takes payments from a broad base of investors and uses these to pay off returns. It creates the illusion that it is providing a highly attractive rate of return on investment as a result of savvy investment decisions when in fact these irresistibly high earnings are in part the result of consuming ...
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Normalized difference vegetation index and soil color-based management zones in irrigated maize
Spectral vegetation indices such as the normalized difference vegetation index (NDVI) have been shown to be useful for indirectly obtaining crop information such as photosynthetic efficiency, productivity potential, and potential yield. The objectives of this study were (i) to examine the relationships among NDVI determined early in the growing season, soil color-based management zones (SCMZ), ...
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The implementation of participatory irrigation management in Andhra Pradesh, India
This paper discusses the implementation of irrigation reform policy in the State of Andhra Pradesh, India. It reports on the impact of the introduction of participatory irrigation management (PIM) in two secondary canals (distributaries) in the Tungabhadra Right Bank Low Level Canal irrigation system. The empirical findings are that the rural elite has captured most of the seats in the water ...
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Losing Soil
In 1938, Walter Lowdermilk, a senior official in the Soil Conservation Service of the U.S. Department of Agriculture, traveled abroad to look at lands that had been cultivated for thousands of years, seeking to learn how these older civilizations had coped with soil erosion. He found that some had managed their land well, maintaining its fertility over long stretches of history, and were ...
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CH#1115 - Small Holder Piggery Problems
Waste Type: Pig Manure Article: After 20 yrs with SAA, Mark Tutton, a qualified aircraft engineer, licenced to maintain Jumbos and having being stationed around SA and Mauritius decided to retire from the rat race. A few years before leaving he had purchased a small holding near Benoni where he bought [fattened] and sold goats & sheep. He came from a farming family, and, when he was ...
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Arundo Donax Removal in the Santa Ana River Watershed
Orange County Water District (OCWD) was awarded the Ruth Anderson Wilson Award by the Santa Ana Watershed Project Authority for its collaborative efforts in a program to remove Arundo donax (arundo) from the Santa Ana River watershed. The arundo removal program is also one reason the U.S. Environmental Protection Agency selected OCWD as a Clean Water Partner for 2003. Arundo donax, or the giant ...
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Decision support system for irrigation maintenance in Indonesia: a multi-objective optimization study
Maintenance of irrigation infrastructure is essential to sustain food production and farmers' earnings. Given the shortage of funds for maintenance in developing countries, it is critical to understand the degradation of the function of irrigation systems so that optimal budget allocations can be made. A case study of Indonesia proposes an Infrastructure Density Index that can be used to justify ...
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