1989. ", James Russell | Armstrong Garden Centers | Chino, CA - View All Testimonials, "We have been using Dosatron fertilizer injectors proudly for over 20 years. Combination pumps usually contain a piston that forces oil or other fluid against a diaphragm, displacing the concentrated chemical. For beautiful, healthy plants and blooms, professional growers have been turning to Dosatron for trusted experience. This "prescription" application both follows plant needs much closer than traditional methods and minimizes the possibility of environmental pollution. Then, it is carried between the gears or lobes and the casing to the discharge side of the pump. ", Henry Huntington | Pleasant View Gardens | Loudon, NH - View All Testimonials, "Dosatron is perfect for drip line fertilization. Centrifugal pumps. Comparison of various chemical injection methods. A positive displacement pump moves a constant volume of fluid from the intake to the discharge side of a pump. Pumps. This method has become a widely accepted management practice, so most states, federal regulatory agencies and foreign governments have adopted guidelines requiring producers to be certified or licensed. Flow sensors described above for reciprocating pumps can assure a constant injection rate (Bajpai, 2018). ), the cumulative costs just keep going up. 1987. Agri-Inject fluid injection technology is effective with any sprinkler package in common use today, including rotators, wobblers, spray/superspray and orbitor types. The pressure drop is accomplished using a line restriction, such as a valve, orifice, pressure regulator, or another device that would create a pressure drop. To operate, as described previously, there must be a pressure differential in the irrigation line between the inlet and the outlet of the injector. On some crops, chemical use has been reduced by the following amounts without reducing yields: Tests indicate increased effectiveness of chemicals applied through fluid injection technology compared to standard application methods, even when smaller amounts of chemicals are applied. Its all up to you! They're accurate, reliable, and simple to operate! Check with your state officials to learn about the regulations governing fluid injection technology in your area. Dorota Z. Haman, professor emeritus; and Fedro S. Zazueta, professor emeritus, Department of Agricultural and Biological Engineering; UF/IFAS Extension, Gainesville, FL 32611. And that payback continues to pay benefits with each applicationand every growing season. This vacuum causes the chemical to flow into the pump. Read our privacy and cookies notice to learn more. This makes sense both economically and environmentally. The Dosatron D14MZ10 chemical injector is the premier technology in water-powered dosing. Valve use allows for pressure drop adjustment, and therefore, injection rate adjustment (Botermans, 2013). Rotary pumps transfer chemicals from suction to discharge through the action of rotating gears, lobes, or other similar mechanisms. Specific methods further subdivide these four groups (Figure 1). Bloch, H. P., & Geitner, F. K. (1997). The injection of chemicals into a pressurized irrigation system frequently uses positive displacement pumps. It is used in industrial applications, including Metal Processing and Food Safety & Sanitation. This rate cannot be easily adjusted (Palgrave, 2019). A smaller piston injects a chemical into the irrigation line. Positive Displacement Pumps for AgriculturalApplications. The payback period varies based on your application methods, but the more applications you make, the quicker the system pays for itself. However, this is not necessarily true for all pumps classified as positive displacement pumps. Aerial application concentrates the chemical into one to two gallons of water per acre. However, the flow rate of the chemical from the pump depends on the pressure in the irrigation line. The injector is usually constructed of plastic and is resistant to most chemicals. In addition to ensuring complete atomization and dispersion of chemicals and fertilizers into the irrigation water stream, the patented Mister Mistr injection check valve on all Agri-Inject systems also serves as a reliable backflow check valve to prevent irrigation water from entering the chemical supply tankas well as preventing chemical from leaking into the main line water stream during system shutdown. A detailed description of the principle of operation of a centrifugal pump is in UF/IFAS Extension Circular 832 (Haman, 1989). OAKTrust Home. Basic principles of operation, advantages, and disadvantages are presented. What is the payback on an Agri-Inject fluid injection system? It compensates for flow and pressure changes providing consistent, repeatable results, and there is no need for electricity. https://floridadep.gov/water/source-drinking-water/documents/chapter-62-555%C2%A0fac-coded-draft-rule-may-2021, Ebrahimian, H., Keshavarz, M. R., & Playn, E. (2014). Part of Circular 695. Spanish Journal of Agricultural Research, 12(3), 820. https://doi.org/10.5424/sjar/2014123-5393. Fluid enters the centrifugal pump near the axis of the high-speed impeller, and by centrifugal force, is thrown radially outward into the pump casing. The flow back into the mainline is often controlled by a metering device installed on the inlet side of the injector. The water is diverted from the main flow, mixed with fertilizer, and injected or drawn back into the mainstream (Figure 11). This site uses cookies and similar technologies to store information on your computer or device. Gear and lobe types of rotary pumps are often for chemical injection into irrigation systems. Below are the most common ways to install and use your Dosatron. Additional advantages of chemigation include less operator hazard and possibly reduced amounts of chemicals (Ebrahimian, 2014). An interested reader may refer to the IFAS Extension Circular 826 (Haman, 1989) for a detailed description, typical applications, and discussion of the advantages and disadvantages of the various positive displacement pumps used in agriculture. Learn more by watching ourVideos, refer to ourLiterature, and check out theMini Maintenance KitsandSeal Kits. Frequently it is some application of the venturi meter or the orifice with changing diameter. Center pivots provide the most effective means of application, while drip/trickle, flood, furrow and subsurface systems are less effective. 
They can be used as often as necessaryto ensure that your Dosatron injects accurately and runs smoothly. (4) 3-Part Solutions A/B/C Tank
Using an Agri-Inject system reduces human and wildlife toxicity since the chemicals are diluted to a greater extent that with conventional application.
The chemical is placed in a collapsible bag separating the chemical from the water (Figure 12). In this case, the chemical flow is proportional to the flow rate in the irrigation system. Garden Center/Greenhouse/Field Irrigation Key, (1) Living Walls provided that full and clear credit is given to Dosatron International, LLC and www.dosatronusa.com with appropriate and Compare that to the multiple risk of spills and exposure associated with filling a spray tank multiple times in one field. (2021). A small venturi can inject small chemical flow rates into a relatively large mainline by shunting a portion of the flow through the injector. Gear and lobe rotary pumps are occasional exceptions. You will find the D14MZ10 chemical injector in many different industries. Chapter 5 - Pipe system basics. The higher the pressure in the irrigation lines, the smaller the flow rate from the injection pump. As water flows through the injector, it causes a cam to turn and push a piston back and forth. Processes, 8(1), 64. https://doi.org/10.3390/pr8010064, Palgrave, R. (2019, November 27). A set of rollers press a flexible tube, creating an even flow. Independent studies indicate that the annual cost of fluid injection technology ranges from 34% to 60% of aerial or ground applicationand decreases dramatically as the number of applications increases during the year. To assure that the water will flow through the shunt, a pressure drop must occur in the mainline. Increase your flow withparallel installations, or inject multiple nutrients withseries installations. The primary reason for chemigation is economics, as a chemical application via irrigation is often less expensive than other methods. It has a ratio range of 1:100 to 1:10 and a flow range of 0.05 to 14 GPM. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. Reciprocating pumps are often electrically driven. However, even with these pumps, excessive discharge pressures should be avoided (for example, due to a closed valve in a discharge line) because excessively high pressures may result in pump or line damage (Stewart, 2019).
Mount them on booms or benches, or use them in conjunction with our portable15-gallon DosaCart,5-gallon Lil Bud-D DosaCart, or theEco-Cartfor fertigation dosing on the go. Another advantage is the ability to apply chemicals only when needed and in required amounts. Choosing the Right Injector. Richardson, M.R. A full vacuum of 28 in of mercury is attained with a differential pressure of 5% or more. Not at all. Unauthorized use and/or duplication of this material without express and written permission from this site's author and/or owner is strictly prohibited. Reciprocating pumps are pumps in which a piston or a diaphragm displaces a given amount of chemical with each stroke. Direct use of pressure differential combined with a venturi can be found in some systems where the pressure drop required for a venturi may be difficult to provide due to design restrictions of the existing irrigation system. Give your crops the perfect amount of fertilizer with our versatile, easy-to-use fertilizer injectors for irrigation. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Before injecting any chemicals into an irrigation system, it is necessary to check that the system is provided with the required backflow prevention system for a given type of chemical. No. It can be plumbed into a system, or be installed using the Industrial Plumbing Kit (IPK34-14GPM). Bajpai, P. (2018). Obviously, you should use common sense safety equipment such as goggles and chemical-resistant gloves when handling material. The Mini Maintenance Kits are available for the 11, 14, 20, 40, and 100 GPM injectors. Advanced Piping Design. (6) Foaming Venturi injectors come in various sizes and can be operated under different pressure conditions. Sprinkler systems accommodate both soil- and foliar-applied chemicals, and provide good uniformity of application. A centrifugal pump, used to provide additional pressure in the shunt (Figure 15), can also be used. How does fluid injection technology compare to traditional application in terms of cost effectiveness? The concentration of the injection changes as the chemical becomes diluted as the water enters the tank during the injection. The operation of a piston pump is similar to the cylinder of an automobile engine. The pulsating motion is transmitted to the diaphragm through a fluid or a mechanical drive and then through the diaphragm to the chemical being injected (Figure 4a and Figure 4b). The pump is suitable for pumping corrosive chemicals since the pumped liquid is completely isolated from all moving parts of the pump. Dosatron fertilizer injectors can be used in a variety of installations and configurations. Agri-Inject systems are being used with great success on a wide range of crops: alfalfa, dry beans, canola, potatoes, corn, cotton, peanuts, soybeans, strawberries, blueberries, lettuce, carrots and more. Various metering valves used with mixing and proportioning tanks operate on pressure or flow changes in the irrigation system. Agri-Inject technology can be a very profitable alternative to aerial or ground rig application depending on the type and amount of use. The chemical flows into the line if the pressure at the injection point is lower than at the chemical intake. Chemical application through irrigation systems is called chemigation. Chemicals only need to be handled once per field. Fans, pumps, and compressors. a) Diaphragm pump - suction stroke. A venturi injector does not require external power to operate. This publication discusses different types of injectors. ", Harold Witzke | Witzke Greenhouses | Courtice, ON, Canada - View All Testimonials, "Dosatron makes a difference with our extraordinary plant material. These methods have four major groups: centrifugal pumps, positive displacement pumps, pressure differential methods, and methods based on the venturi principle (Kowalski, 2001). A. Does fluid injection technology reduce chemical costs? With an Agri-Inject system, you simply inject the chemical through your irrigation water, so you can treat the crop and continue to provide much-needed water. a) Piston pump - suction stroke.
From row crops to forages, from fruits and nuts to vegetablesAgri-Inject technology is on the job helping growers improve yields, quality and profitability. Price and other details may vary based on product size and color. 