irrigation timing Articles

  • Knowledge of Farm Practices – The Key for Successful Farming

    Agriculture plays an important part in the world economy. One-third of the economically active population obtains its livelihood from agriculture. In Asia and Africa, millions of small-scale farmers, fishermen, and indigenous people produce most of the food consumed worldwide, in most cases on very small plots of land. Agriculture is increasingly called upon to address a wide range of critical ...


    By Agrivi Ltd

  • Arsenic in irrigated paddy soils

    Natural arsenic pollution of drinking water has been reported from over 70 countries world-wide, affecting an estimated 150 million people (Ravenscroft et. al., 2008). About 50 million of these people live in Bangladesh, 30 million in India and 33 million in six other countries of south and south-east Asia. It has recently been recognised that arsenic-contaminated groundwater used for irrigation ...

  • Empowering Women in Irrigation Management

    This case study aims to highlight, within the context of a Gender Pilot of the Peru Sierra Irrigation Project, how women's different needs were identified to facilitate their access to training and to increase their participation in the management of water users' organizations. It follows the diagnostic participatory discussions around the importance for communities to include women in water ...


    By IWA Publishing

  • 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 ...


    By IWA Publishing

  • Monitoring Water Resources Beyond Irrigation

    Over the past year, California’s governor has taken unprecedented action, requiring Californians to drastically cut potable urban water use. While the restrictions may seem harsh to some, it actually provides an opportunity for building managers and community association boards to implement an effective long-term water conservation program. And the result can be significant dollar savings. ...


    By WaterSignal

  • Effect of deficit irrigation and fertilization on cucumber

    Soil water budgets are essential in determining the proper timing and amount of irrigation. Organic fertilizers can be substituted for commercial fertilizers; however, information is sparse on the interaction of irrigation management and nutrient source on cucumber (Cucumis sativus L.) production. This study evaluated nutrient source and irrigation management on growth and yield of cucumber grown ...

  • India's groundwater irrigation boom: can it be sustained?

    Development of groundwater irrigation (GWI) has been very impressive in India, especially after the introduction of the green revolution. The area under GWI accounts for 62% of the net irrigated area today. Though GWI provides added benefits to farmers, compared to other sources of irrigation, the continuous exploitation of groundwater of late has resulted in a drastic drop in the water table, ...


    By IWA Publishing

  • Fertilization and blending alternatives for irrigation with desalinated water

    Received for publication April 29, 2008. In arid-zone agriculture where available irrigation water is saline, desalination is becoming an attractive method for increasing yields and reducing negative environmental consequences. However, irrigation with desalinated water can be problematic if essential nutrients, including Ca, Mg, and S, removed during reverse osmosis, are not reintroduced. We ...

  • Flow monitoring for golf course irrigation case study

    “We are all talking about the price of oil, but it's water we'll be fighting for in the future” Summerheights Golf Links in Cornwall, Ontario draws irrigation water from the South Raisin River. Flow rates in the river can become very low during dry periods so water extraction is regulated and monitored closely. Under a water extraction permit issued by the Ministry of The ...


    By Greyline Instruments Inc.

  • Can drip irrigation keep the Prairie Profitable?

    The use of flood and center pivot irrigation of crops via the waters of the Ogallala Aquifer is as hot a discussion topic as the current drought. To many who mine the aquifer to make a living, trying to keep a profitable way of life sustainable in a time when the broader public is seeking more conservation of resources yet wanting inexpensive, plentiful and safe food is problematic. Perhaps it's ...


    By Netafim USA

  • Assessment of the performance of participatory irrigation management in Antalya, Turkey

    This study examined 29 irrigation organizations in the province of Antalya, Turkey. Sufficiency, efficiency, sustainability and producer satisfaction were used as criteria for the productivity of irrigation networks. Differences in the irrigation organizations were compared and analyzed using a number of performance indicators. It was found that the irrigation associations had an irrigation ...


    By IWA Publishing

  • Optimization of water distribution for open-channel irrigation networks

    Water distribution for open-channel irrigation networks is more and more complex due to increasing constraints on water resources and changing demand patterns, whereas the performance of such systems is expected to increase. In this regard, an optimization approach is developed in order to schedule a fair scenario of water distribution among different users, where water demand is formulated in ...


    By IWA Publishing

  • LG Sound, controlling algae in irrigation reservoirs

    Algae growth in irrigation water can cause a serious problem. Algae in irrigation tanks can clog the entire irrigation system, such as the pumps, filters, drip-installation and sprinkler nozzles. Besides that the algae and their by-products can also be spread over the irrigated area. In addition, some types of fungi, also present in these waters, can be harmful for the plants grown. Typical ...


    By LG Sonic

  • Colorado Irrigation Canal Channels - Case Study

    Project Background “Different materials to protect canal liners had been tried in irrigation canals across the West over the past 15 or 20 years.   One typical method uses a low cost earthen material like clay. Over time, however, these systems begin to crack and start to leak.  It’s not a very efficient way to convey water,” notes Joe Kaul, Kaul ...


    By Presto Geosystems

  • Commercial Experiences :Time for (compost) Tea in the Northwest

     Understanding Compost Tea COMPOST TEA describes many different preparations made using compost as a starting material and producing a liquid extract or in some cases a “liquid version” of the original compost. There are many home-designed pieces of equipment and some commercially available equipment made to produce compost tea. New ideas abound on how to fabricate the better tea-maker and ...


    By BioCycle Magazine

  • Aerated biofilter with seasonally varied operation modes for the production of irrigation water

    Water reuse for agricultural irrigation can contribute to the conservation of valuable water resources and opens the possibility to reuse the wastewater's nutrients (N and P) at the same time. As irrigation is usually limited to vegetation periods, effluent requirements for treated wastewater may vary seasonally. A process concept for wastewater treatment with variable operation modes for the ...


    By IWA Publishing

  • Design of drip irrigation lateral for optimum capital and operating cost

    The drip irrigation system cost can be reduced effectively by using optimal design methods and decreasing the system pressure. In this paper, a two-stage optimum drip irrigation lateral design model is developed based on a new uniformity formula that includes hydraulic variation, emitter manufacture’s variation, and field roughness variation. The non-linear objective function minimizes the ...


    By IWA Publishing

  • Yield and water use response of cuphea to irrigation in the Northern Corn belt

    Cuphea (Cuphea viscosissima Jacq. x C. lanceolata W.T. Aiton) may be prone to drought stress, yet little is known about the yield response of this new oilseed crop to irrigation. A field study was conducted in western Minnesota on a Barnes loam soil (fine-loamy, mixed, superactive, frigid Calcic Hapludolls) in 2002 and 2003 to compare yield and water use of irrigated and nonirrigated cuphea. ...

  • Re-using Winery Wastewater to Irrigate Redgum Plantations: Berri Estates

    Berri Estates is using the wastewater from its winery to grow a plantation of Murray River Redgums. Their success has solved problems posed by large volumes of smelly waste water that cannot be easily treated when disposed of by traditional lagooning systems. The trees are a resource for the future, are aesthetically pleasing and are ensuring that Berri’s wastewater doesn’t add to the serious ...


  • Soil salinity and exchangeable cations in a wastewater irrigated area, India

    Received for publication May 29, 2008. The salinity and cation composition of water and soil were documented in a large (98 km2) wastewater-irrigated area (WIA) downstream of Hyderabad, India. The wastewater, which flows in a river that passes through the city, had a high to very high salinity hazard (EC = 1.1–3.0 dS m–1) that increased with distance from the city. The EC of soil irrigated by ...

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