This study investigates the factors influencing evaporation loss from sprinkler systems during operation. Through analysis, it is determined that evaporation is influenced by climate demand, time of ...operation, and water droplet surface area. A nomograph is introduced to estimate evaporation loss, with findings suggesting an average daily loss of 1.5 percent in Gainesville, Florida. Moreover, operation during early afternoon hours in typical summer conditions may lead to a 3 percent loss. Conversely, minimal loss is expected during nighttime and early morning operations. Strategies to mitigate evaporation loss include adjusting operating conditions to increase droplet size and avoiding high climate demand periods. Conversely, factors such as using small nozzles and operating at high pressures can exacerbate evaporation loss, particularly during peak climate demand periods. It is emphasized that adherence to manufacturer-recommended pressure ranges is crucial to prevent performance issues.
The article outlines how computer control technology is used in agriculture to monitor and manage environmental conditions for optimal production. It discusses the complexity of agricultural systems, ...the hardware and software components involved in control systems, and various control strategies. It also mentions commercially available systems, do-it-yourself options, and emerging technologies like real-time expert systems, computer modeling, and robotics. Overall, it suggests that computer-controlled systems are becoming increasingly important in agriculture, offering improved efficiency and resource management.
This study investigates the factors influencing evaporation loss from sprinkler systems during operation. Through analysis, it is determined that evaporation is influenced by climate demand, time of ...operation, and water droplet surface area. A nomograph is introduced to estimate evaporation loss, with findings suggesting an average daily loss of 1.5 percent in Gainesville, Florida. Moreover, operation during early afternoon hours in typical summer conditions may lead to a 3 percent loss. Conversely, minimal loss is expected during nighttime and early morning operations. Strategies to mitigate evaporation loss include adjusting operating conditions to increase droplet size and avoiding high climate demand periods. Conversely, factors such as using small nozzles and operating at high pressures can exacerbate evaporation loss, particularly during peak climate demand periods. It is emphasized that adherence to manufacturer-recommended pressure ranges is crucial to prevent performance issues.
Turf Irrigation for the Home F. S. Zazueta; A. Brockway; L. Landrum ...
EDIS,
06/2014, Letnik:
2014, Številka:
2
Journal Article
Recenzirano
Odprti dostop
Water is essential for turf growth. It is required for germination, photosynthesis, and as a part of the turf. Most of the water absorbed by turf is transpired through the leaves into the atmosphere. ...This water moves nutrients from the soil into the plant, but equally important, it eliminates heat buildup from solar radiation. The water applied by an irrigation system will evaporate from the soil and be transpired from plant surfaces. Evaporation and transpiration (evapotranspiration) depend mostly on the climate around the plant; thus, the amount of water used by turf changes with the seasons. This document explains what to do for a well-managed turf.
When an existing pumping system will be used as a component of an irrigation system, it is necessary to measure the capacity of the pump so that the irrigation system can be designed to operate ...efficiently using the available flow rate and pressure. This requires measuring pump discharge rates and pressures at several points over the available range. Flow meters or volumetric methods can be used to measure discharge rates, while pressures are easily measured with pressure gauges. This document presents procedures for measuring pump capacity and also this work discusses factors affecting pump capacities under field conditions.
A three-year study of water use by two species of cultivated blueberry was conducted. The experiment was performed on two rabbiteye (Vaccinium ashei Reade) varieties, Premier and Powderblue, and one ...highbush (Vaccinium corymbosum L.) variety, Sharpblue. Water was applied to the plants using a microirrigation system. Irrigations were triggered at three soil water tension levels: 10-kPa, 15-kPa, and 20-kPa. Water use for both species was monitored using drainage-type lysimeters and a water budget method. Grass reference crop modified coefficients for the modified Penman equation (Burman, 1980) during the first three years of establishment were developed based on the 10-kPa treatments for both species. Modified crop coefficients for microirrigated highbush blueberries were below 0.2 during the first two years of plant establishment and increased to 0.35 in the third year as the plants rapidly increased in size. Coefficients for the rabbiteye varieties were consistently higher during all three years, reaching 0.5 in the third year
The article outlines how computer control technology is used in agriculture to monitor and manage environmental conditions for optimal production. It discusses the complexity of agricultural systems, ...the hardware and software components involved in control systems, and various control strategies. It also mentions commercially available systems, do-it-yourself options, and emerging technologies like real-time expert systems, computer modeling, and robotics. Overall, it suggests that computer-controlled systems are becoming increasingly important in agriculture, offering improved efficiency and resource management.
This publication presents procedures to separately evaluate the effects of pressure variations in the pipe network (hydraulic uniformity) and variations due to the emitter characteristics (emitter ...performance variation) on uniformity of water application. Knowing both of these factors will help an irrigation system manager identify the causes of low application uniformities and the corrections that may be required to improve the uniformity of water application.
