SEARCH OUR SITE	Tree & Vine Irrigation of tree and vine crops can be accomplished in a variety of ways. There are part-coverage systems with micro sprinklers, full-coverage under-canopy systems with Impact and rotator™ sprinklers, overhead sprinkler systems, and drip rrigation systems. Each system type has its advantages. For many years the trend has been towards drip and micro; however, with the introduction of the R5, R10, 10T, and R2000 Rotators™ a new trend towards highly uniform full coverage systems is emerging. Most micro sprinklers have relatively poor distribution uniformity; however, they have been successful because they provide a one-sprinkler-per-tree or one-sprinkler-per-two-tree relationship. The R5 offers the low-pressure operation of a micro sprinkler, a one-sprinkler-per-tree relationship, and highly uniform full coverage irrigation. Full coverage brings with it many application advantages including making more nutrients available to the tree, and developing an expanded root system that is much more resistant to high heat stress conditions and better support in high wind conditions. Other benefits include dust control and the ability to grow a cover crop for erosion control, a cooler environment, and a habitat of beneficial insects. Full coverage systems with properly-spaced low-trajectory R5, R10, R10T or R2000 Rotators™ can provide the same tree-to-tree uniformity as a micro system if obstruction is properly managed. Such systems are normally full-coverage and have the advantage of lower filtration and maintenance costs because there are fewer heads per acre. Some of the major reasons growers have converted from impulse sprinklers to the R10 or R2000 Rotators™ in under canopy orchard applications include better uniformity, better reliability, and smaller nozzles which better fit the higher sprinkler density required to properly manage obstruction. Weeds or vines simply will not hang up a Rotator™ they way they can on spinners and impact sprinklers. The R2000WF is wonderful fit for overhead sprinkling in tree and vine crops. It provides very high uniformity and larger nozzles that are less prone to plugging. It easily mounts a foot above the canopy and saves growers from the hassle of wind-blown vines stopping impact sprinklers during an irrigation. Its quick-connect acme thread is handy for removing sprinklers prior to mechanical harvests. The wide range of pressure and system control options of the Nelson 800 Series Control Valves have proven very useful in tree and vine irrigation systems. The ACV200 Air Control Valve is an essential system component as well. We recommend tree and vine growers take advantage of the ability to automate ... the wireless Nelson Solorain for automated on and off control of Nelson 800 Series Valves saves in installation costs and adds precision to your irrigation scheduling. Nelson Pressure Regulators are often a system component in tree and vine systems. Applications include the Hi-Flo or Lo-Flo models at the beginning of each lateral or drip line, the Mini Regulator at the base of the R10, R10T, R2000 or R2000WF, or the Mini Regulator Drain Check in orchard cooling systems. New design technologies have enabled the development of highly uniform sprinklers such as the Rotator™; however, any sprinkler can provide poor coverage if it is not properly spaced. Have a uniformity analysis completed before you finalize your spacing, pressure and sprinkler decisions. The Nelson Overlap Software is able to provide you with the information you need to get a highly uniform system at a reasonable cost.