Irrigation Scaling Control Articles on agriculture-xprt.com

Large-scale irrigation - Understanding energy-water-food connections

Original story at MIT News An MIT team is providing new understanding of the growing interconnections among three critical resources: energy, water and food. The work focuses on Pakistan's Indus Basin, where irrigation water is increasingly pumped from underground, a practice that is intensifying a preexisting shortage of energy. Using new and ...

Aug. 19, 2013

By MIT - Massachusetts Institute of Technology

Why Drip Irrigation Design is Crucial to Your Success

Drip irrigation is one of the most cost-effective and efficient watering methods in agriculture. It has become incredibly popular in the past 50-years and has been widely adopted by agriculturalists in dozens of countries throughout the world. In simple term, drip irrigation works by sending water through plastic pipes into drip emitters. These emitters are specifically designed to release water ...

Jan. 18, 2016

By KIM

Peru: Olmos irrigation project sparks development debate

The recently launched irrigation and hydropower Olmos megaproject in Peru is hailed a ‘masterpiece of engineering’ aimed ...

Dec. 11, 2014

By SciDev.Net

Soil and water: towards a larger-scale perspective of their relations

Land use changes over time have altered relations between soils and water cycles throughout Europe. There are regions where forests were cut for agriculture or herding, or for industrial, mining, and/or railroad use. Soils were lost, through mud floods, and the water cycles changed so that their present status is one of badlands and/or desert-like areas. Early stages in the path to degradation ...

Nov. 1, 2015

By European Commission, Environment DG

Different Asias, same problems: negotiating the state-user interface in surface irrigation in China and India

This paper explores the dynamic interface of state-water users' relationships in large-scale surface irrigation in India and China, to inquire to what extent the issues encountered in large-scale irrigation management and governance are independent of regime characteristics. Though operating in very different overall political regimes, China and India exhibit strong similarities in the way a ...

Oct. 17, 2016

By IWA Publishing

Novel simulation-based algorithms for optimal open-loop and closed-loop scheduling of deficit irrigation systems

The scarcity of water compared with the abundance of land constitutes the main drawback within agricultural production. Besides the improvement of irrigation techniques a task of primary importance is solving the problem of intra-seasonal irrigation scheduling under limited seasonal water supply. An efficient scheduling algorithm has to take into account the crops' response to water stress at ...

Jan. 1, 2012

By IWA Publishing

Brazil: Controlled Composting In Developing Countries

For more than six years, pilot and large-scale composting experiments have been done at the University of Vicosa in Vicosa, Brazil. We focused on low cost technologies, forced aeration techniques, vector and leachate control, process monitoring, staff training, and technical assistance to farms and city councils. It seems that an unwritten law for solid waste management for developing countries ...

Jan. 1, 2001

By BioCycle Magazine

Using Compost To Control Plant Diseases

Losses due to soilborne diseases on some greenhouse, nursery and vegetable crops can amount to thousands of dollars per acre annually. Until the 1930s, organic amendments — consisting of animal and green manures, coupled with crop rotation — were principal methods of control. But these approaches were largely abandoned for reasons of cost and inconvenience after commercial fertilizers and the ...

Jan. 1, 1999

By BioCycle Magazine

Control of algal production in a high rate algal pond: investigation through batch and continuous experiments

For decades, arid and semi-arid regions in Africa have faced issues related to water availability for drinking, irrigation and livestock purposes. To tackle these issues, a laboratory scale greywater treatment system based on high rate algal pond (HRAP) technology was investigated in order to guide the operation of the pilot plant implemented in the 2iE campus in Ouagadougou (Burkina Faso). ...

Jun. 25, 2014

By IWA Publishing

Supply- and demand-side management of water in Gujarat, India: what can we learn?

Agriculture in Gujarat has grown rapidly over the last decade, driven at least partly by diversification to high value crops and dairying. High value agriculture requires better water control and offers higher returns for irrigation. Farmers, farm communities and the state government in Gujarat have responded to this requirement by implementing large-scale water supply and demand management ...

Apr. 29, 2013

By IWA Publishing

Canopy gas exchange measurements of cotton in an open system

A portable, open transparent chamber system for measuring canopy gas exchanges was developed and tested. Differentials between incoming and outgoing atmospheric H2O and CO2 concentrations were used to calculate canopy transpiration (E) and net assimilation (A) at 10-s intervals using solenoid valve actuated sample lines connected to an infrared gas analyzer. A programmable data logger controlled ...

Jan. 8, 2009

By Soil Science Society of America (SSSA)

Omaha beach golf course

The rich green swathes of the new extension of Omaha Golf Course are visual proof of high technol¬ogy at its best, enabling lush ungated grass to survive all year round despite being bordered on two sides by ocean and estuary and buitt on a combination of sand dunes and wetlands. It is a world first, and an international success story for the three main players - local drainlayer Ivor Jones, ...

Oct. 22, 2002

By Geoflow, Inc.

Crops flourish with Scalewatcher

Water is an essential component of horticulture and agriculture whether it is used for irrigating field-scale vegetables, nursery stock, flowers or fruit. Where water contains high degrees of calcium, magnesium and sodium, it can cause nutrient deficiency in plants and crops resulting in stunted growth and poor yields. Calcium also blocks irrigation systems and boilers in heated ...

Feb. 1, 2012

By Scalewatcher North America Inc.

Separation of solids and disinfection for agronomical use of the effluent from a UASB reactor

The present work addresses the preparation of the effluent from a full-scale upflow anaerobic sludge blanket (UASB) reactor for drip irrigation of orange crops. The pilot plant included a lamella plate clarifier followed by a geo-textile blanket filter and a UV disinfection reactor. The clarifier operated with a surface load of 115 m3m−2d−1, whereas the filter ...

Jan. 16, 2014

By IWA Publishing

Composting

Introduction Composting is a controlled biological process by which organic contaminants (e.g., PAHs) are converted by microorganisms (under aerobic and anaerobic conditions) to innocuous, stabilized byproducts. Typically, thermophilic conditions (54 to 65 °C) must be maintained to properly compost soil contaminated with hazardous organic contaminants. The increased temperatures result from heat ...

Oct. 1, 1997

By Federal Remediation Technologies Roundtable

Xylem helps Italian Winery toast success

A case study on the Pasqua Vigneti e Cantine Winery, Verona Italian wine is enjoyed by many all over the world. However, to grow the best grapes, develop the best flavour and ensure success on a global scale, a seamless production process needs to be in place behind the scenes. The family-run Pasqua Winery in Verona, Northern Italy, has been making wine for over ...

Dec. 1, 2015

By LOWARA - a Xylem brand

California Vineyard Finds Large Role for Compost

Untitled Document I CAME to Robert Sinskey Vineyards (RSV) with experience in both small and large-scale wine-grape farming, all of it in ...

Jun. 1, 2005

By BioCycle Magazine

Could food shortages bring down civilization?

One of the toughest things for people to do is to anticipate sudden change. Typically we project the future by extrapolating from trends in the past. Much of the time this approach works well. But sometimes it fails spectacularly, and people are simply blindsided by events such as today’s economic crisis. For most of us, the idea that civilization itself could disintegrate probably seems ...

Apr. 27, 2009

By Earth Policy Institute

Composting of biodegradable organic wastes for sustainable agriculture

Investigators: M.A. Ali Khan, Manoj Kumar, Kavita Kashyap, Ruby Rani, Sanjay Yada, Priti Kaushik Siraohi Environmental Science Lab. Dept. of Botany, Simbhaoli, Ghaziabad, India Objectives: To recycle, reduce and reuse hazardous distillery spent wash (DSW). Pressmud cake (PMC) fly ash, Eicchornia/Azolla/trash/litter and DSW inoculated with Trichoderma viride were observed for temperature based ...

Jun. 29, 2009

By BioCycle Magazine

CO2 Enrichment in Horticulture... A `Good Life´ for all?

If you’ve ever watched that classic 1970s TV series, ‘The Good Life’, you might have some idea of the work involved in attaining self-sufficiency. As funny and light-hearted as it was, ‘The Good Life’ offered many insights into the unenviable lot of the vegetable gardener. To its credit, the programme was also ...

Sep. 17, 2015

By Analox Sensor Technology

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