irrigation water Articles
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Treating Winery Wastewater Without Ponds
Wineries traditionally treat their wine process wastewater with aerobic (aerated) ponds to biologically degrade the biochemical oxygen demand (BOD). The treated wastewater from these ponds needs to have a BOD of 40 ppm or less (depending on the location of the winery) before the winery can discharge the water to the vineyards for irrigation. The discharge level of 40 ppm as well as the ...
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AquaCrop model simulation under different irrigation water and nitrogen strategies
On a global scale, irrigated agriculture consumes about 72% of available freshwater resources. Deficit irrigation can be applied in the field to save irrigation water and still lead to acceptable crop production. The AquaCrop model is a simulation model for management of irrigation and nitrogen fertilizer. This model is a new model that is accurate, robust and requires fewer data inputs ...
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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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Conjunctive use of coffee effluent and pond water on the performance of robusta coffee and soil properties
A field experiment was conducted to study the influence of coffee effluent irrigation on performance of established robusta coffee, nutrient contribution and microbial activities in the soil. The results revealed that the field irrigated with coffee effluent from aerobic tank having COD of 1009 ppm, did not affect the yield of clean coffee (1309 kg ha-1) and it was on par with the plots irrigated ...
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A strategy for sustainable livestock husbandry wastewater treatment in China
A strategy for sustainable treatment of the livestock husbandry wastewater is proposed, which is to recycle anaerobic treatment effluent as irrigation water. The existing treatment system was modified by deleting the treatment units after the anaerobic digestion. Chinese cabbage and Korean radish were selected as seeding plants in two sets of field irrigation experiments with various portions of ...
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Cultivation of rice for animal feed with circulated irrigation of treated municipal wastewater for enhanced nitrogen removal: comparison of cultivation systems feeding irrigation water upward and downward
To achieve enhanced nitrogen removal, we modified a cultivation system with circulated irrigation of treated municipal wastewater by using rice for animal feed instead of human consumption. The performance of this modified system was evaluated through a bench-scale experiment by comparing the direction of circulated irrigation (i.e. passing through paddy soil upward and downward). The modified ...
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Modeling irrigation management strategies to maximize cotton lint yield and water use efficiency
Increasing pumping costs and declining well capacities in the Southern High Plains compel producers to seek irrigation strategies to maximize yield and water use efficiency (WUE), which is the ratio of yield to evapotranspiration (ET). Cotton (Gossypium hirsutum L.) is suited to deficit irrigation using wells ranging from 0.29 to 0.93 L s–1 ha–1 capacity to supply limited, 2.5 mm d–1, to ...
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Growing Produce Focuses on Drip Irrigation
Reporter Matthew Grassi from Growing Produce has just published an article about the choice growers face when switching from overhead to drip irrigation. They can save water and labor while deploying more sustainable and automated practices, but some may still be waiting to move forward. The article is titled, “Will Drip Replace Overhead Irrigation in Farm Fields?,” and you can read ...
By Farm(x)
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Evaluation of the management practice for controlling herbicide runoff from paddy fields using intermittent and spillover-irrigation schemes
Two water management practices, an intermittent irrigation scheme using automatic irrigation system(AI) and a spillover-irrigation scheme (SI), were compared for the fate and transport of commonly used herbicides, mefenacet (MF) and bensulfuron-methyl (BSM) in experimental paddy plots. Maximum mefenacet concentrations in paddy water were 660 and 540 µgL−1 for AI and SI plot, respectively. ...
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Validating the FAO aquaCrop model for irrigated and water deficient field maize
Accurate crop development models are important tools in evaluating the effects of water deficits on crop yield or productivity. The FAO AquaCrop model predicts crop productivity, water requirement, and water use efficiency (WUE) under water-limiting conditions. A set of conservative parameters [calibrated and validated for maize (Zea mays L.) in a prior study and considered applicable to a wide ...
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Improving Irrigation in Browns Valley, California
In Northern California, the Browns Valley Irrigation District supplies water to hundreds of farmers. As this water source needs to supply many farmers in Northern California, accurate measurement is key as it ensures that farms are able to properly function and sustain the plants and/or livestock they have. The specific source of water that irrigates the fields in the Browns Valley District ...
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Improving Irrigation in Browns Valley, California
In Northern California, the Browns Valley Irrigation District supplies water to hundreds of farmers. As this water source needs to supply many farmers in Northern California, accurate measurement is key as it ensures that farms are able to properly function and sustain the plants and/or livestock they have. The specific source of water that irrigates the fields in the Browns Valley District ...
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Parameterization and evaluation of the aquacrop model for full and deficit irrigated cotton
Predicting yield is increasingly important to optimize irrigation under limited available water for enhanced sustainability and profitable production. Food and Agriculture Organization (FAO) of the United Nations addresses this need by providing a yield response to water simulation model (AquaCrop) with limited sophistication. In this study, AquaCrop was parameterized and tested for cotton ...
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Using Soil EC Sensors for Irrigation Management
I. Introduction Irrigation is a critical component of agriculture, ensuring that crops receive the necessary amount of water for optimal growth and yield. However, the efficient use of water is becoming increasingly important due to water scarcity and the need to conserve resources. Soil EC sensors offer a valuable tool for irrigation management, allowing farmers to monitor soil moisture levels ...
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Eima 2016: A success for irrigation
Energy saving and maximum efficiency are the cardinal points of agriculture 2.0. Today, through the micro irrigation and subsurface irrigation, agricultural production reached a high level of efficiency that assures quality and quantity. “Micro-irrigation”, or drip irrigation, is a method which allows the farmer to give the same amount of water to the roots of each plant, without ...
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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. ...
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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 greenhouses, ...
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100% Faster Soil-Water Infiltration Rate with Cherries in Chile - Case Study
Details: The Kyminasi Plant Booster (KPB) technology was installed on 4 hectares of cherry trees in Chile on August 30, ...
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The Effect of Wastewater Irrigation on Perennial Energy Crops
Using treated wastewater to irrigate energy crops is a favourable alternative for traditional irrigation, especially on marginal lands or in seasons when water is scarce. Although irrigating crops with reused wastewater (even when used to irrigate non-food crop) not always have social acceptance, considering the amount of wastewater daily available, and its high nutrient loads, it is a ...
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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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