Publications by Kerry A. Harrison
15 publications were found.
Chemigation in Georgia
Chemigation is an inclusive term referring to the application of a chemical into or through an irrigation system. It includes the application of fertilizers, acids, chlorine and pesticides. Chemigation can save time, reduce labor requirements, and conserve energy and materials. Chemigation is beneficial, however, only to the extent that the irrigation system is adequately designed, fully functional and properly managed. Published on Feb 28, 2014.
Commercial Snap Bean Production in Georgia
This is an in-depth publication covering Culture and Varieties,
Soils and Fertility, Irrigation, Sprayers, Diseases, Insect Management, Weed Control, Food Safety and Sanitation, Harvest/Post-Harvest and Waste Management, Marketing, Production Costs, and Organic Production of commercial snap bean production in Georgia. Published on Feb 28, 2014.
Cultural Management of Commercial Pecan Orchards
In order for a commercial pecan operation to be consistently successful, the goal of the operation should be annual production of a moderate crop of high quality nuts, rather than the production of a high yield in a single given year. Culturally, there are several basic factors that will help to promote optimum profitability with a commercial pecan orchard. Published on Feb 28, 2014.
Drip Chemigation: Injecting Fertilizer, Acid and Chlorine
Drip irrigation is an important component of vegetable production systems in Georgia. Drip irrigation is more desirable than other irrigation methods for several reasons. Two important advantages are (1) water conservation and (2) potentially significantly improving fertilizer management. Fertigation is the timely application of small amounts of fertilizer through drip tubes directly to the root zone. Compared to conventional ground application, fertigation improves fertilizer efficiency. Published on Feb 28, 2014.
Drip Irrigation in Pecans
Research conducted on drip-irrigated pecans in Georgia over the past several years has shown that drip irrigation is highly beneficial even in wet years. The objective of drip irrigation is to supply each plant with sufficient soil moisture to meet transpiration demands. Drip irrigation offers unique agronomic, agrotechnical and economic advantages for the efficient use of water. Published on Feb 28, 2014.
Evaluating and Interpreting Application Uniformity of Center Pivot Irrigation Systems
With rising fuel prices it is increasingly important that irrigation systems apply water uniformly in order to achieve maximum benefit from the water applied. The uniformity of water application under a center pivot is determined by setting out cans or rain gauges along the length of the pivot, bringing the irrigation system up to proper operating pressure, and letting the system pass over them. Published on Feb 28, 2014.
Irrigation Pumping Plant Performance
Irrigation pumping plant performance can be easily determined in the field with a few simple calculations. Standard figures can reasonably be expected from well-designed, well-maintained systems. Published on Feb 28, 2014.
Irrigation Pumping Plants and Energy Use
Energy inputs for irrigation pumping frequently exceed the energy used for all other crop production practices. This fact, coupled with rapidly increasing fuel and energy costs, causes irrigation farmers to look for ways to reduce energy consumption. Careful consideration should be given to selecting a pump that will deliver water to the system with the greatest possible efficiency. After installation, pump performance should be watched closely and evaluated, with steps being taken as needed to adjust, repair or replace inefficient pumping equipment. Published on Feb 28, 2014.
Irrigation Scheduling Methods
To schedule irrigation for most efficient use of water and to optimize production, it is desirable to frequently determine the soil water conditions throughout the root zone of the crop being grown. A number of methods for doing this have been developed and used with varying degrees of success. In comparison to investment in irrigation equipment, these scheduling methods are relatively inexpensive. When properly used and coupled with grower experience, a scheduling method can improve the irrigator’s chances of success.This publication covers the working principles of currently used methods for scheduling irrigation. Published on Feb 28, 2014.
Irrigation for Lawns and Gardens
In order to maintain a lush, green lawn and productive garden, supplemental water in the form of irrigation is often needed during peak water use periods. Two basic types of irrigation are suitable for the home landscape: sprinkler irrigation and drip (or trickle) irrigation. This publication contains comprehensive information about irrigating lawns and gardens. Published on Mar 31, 2014.
Onion Production Guide
This publication represents the latest information available on the commercial production of short-day onions in South Georgia. Published on Feb 28, 2014.
UGA EASY Pan Irrigation Scheduler
The UGA EASY (Evaporation-based Accumulator for Sprinkler-enhanced Yield) Pan Irrigation Scheduler is designed to provide in-field monitoring of crop water needs in humid areas for a fraction of the management time and cost associated with other irrigation scheduling methods. If a farmer is not currently using a more sophisticated irrigation scheduling method, this unit is a simplified, low cost alternative. The UGA EASY Pan Irrigation Scheduler is designed to help you keep track of when your next application is needed, so you can avoid applying too much or too little water. The overall goal is to be more efficient in the use of irrigation water. Published on Feb 28, 2014.
UGA EASY Pan Irrigation Scheduler: Pan Size Considerations
The University of Georgia EASY Pan (Evaporation-based Accumulator for Sprinkler-enhanced Yield) was introduced in 2001 as a simple, cost-effective alternative for scheduling irrigations on sprinkler irrigated row crops in humid regions. Several users have questioned the need for the larger sized tub or pan. This publication presents results of a test with two smaller pans. The potential to use a smaller unit would allow a single individual to easily set up and maintain the EASY Pan and, at the same time, reduce the overall cost of materials in the construction process. The hypothesis of this particular test was that the two smaller pans would respond in a similar manner to the larger pans under evaporation and excess rainfall conditions. Published on Feb 28, 2014.
Water Meters as a Water Management Tool on Georgia Farms
In 2004, the Georgia General Assembly passed and the governor signed House Bill 579, which required all permitted irrigation withdrawals in Georgia to be metered by 2009, depending on available funds. Farmers are continually trying to manage their irrigation systems to increase yields and improve the quality of food and fiber. Some management examples include end gun shut-offs (repaired or installed), uniformity tests, installing new sprinkler packages and improved irrigation methods. Each of these methods help improve the system, reduce costs and distribute more of the pumped water to the growing crop. The agricultural water meter also can be used for improved yields while conserving water. Published on Apr 30, 2015.
Water Quality and Common Treatments for Private Drinking Water Systems
An abundant supply of clean, safe drinking water is essential for human and animal health. Water from municipal or public water systems is treated and monitored to ensure that it is safe for human consumption. Many Georgia residents, especially in rural areas, rely on private water systems for human and livestock consumption. Most private water systems are supplied by wells. Water from wells in Georgia is generally safe for consumption without treatment. Some waters, however, may contain disease-causing organisms that make them unsafe to drink. Well waters may also contain large amounts of minerals, making them too “hard” for uses such as laundering, bathing or cooking. Some contaminants may cause human health hazards and others can stain clothing and fixtures, cause objectionable tastes and odors, or corrode pipes and other system components. Published on Jul 31, 2014.