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This publication presents basic information on factors (veil, water and plant relationships) to be considered in developing an effective irrigation schedule.
This publication provides information you will need for measuring soil water: types of soil-water measuring devices, how to select the right measuring device and how to prepare and install these devices.
Subsurface drip irrigation (SDI) is the practice of installing drip irrigation below the ground. SDI may be used below planting and tillage operations even in standard row-crop production systems. This publication is the first in a series that examines how North Carolina growers can use the technology.
The self-propelled gun type traveler system is usually the most practical system for irrigating irregular shaped fields. Selection and management considerations for self-propelled gun type systems are discussed in this article.
This publication explains the weight-area method, one of the two methods in which solid or semi-solid applicators can be calibrated. Proper calibration is required by law.
This publication explains the load-area method, one of the two methods in which semi-solid animal waste applicators can be calibrated. Proper calibration is required by law.
Although subsurface drip irrigation (SDI) is in its infancy in North Carolina, it is becoming more popular as growers learn of its many benefits, which include increased irrigation efficiency. Proper management is imperative with an SDI system. Many components of an SDI system are underground; therefore, you must carefully monitor pressure and flow rates to ensure that the system is operating properly. This publication addresses water management, chemigation, system management and maintenance, and system evaluation.
Low volume irrigation systems are normally used for fruits, vegetables, container nursery plants and in the landscape. For all these uses, growers are interested in highly controlled water management systems. Selection and management considerations for low volume irrigation systems are discussed in this article.
This technical bulletin discusses riparian buffers and controlled drainage as best practices to reduce nonpoint (diffuse runoff) water pollution in North Carolina's basins. The article covers in-depth explanations of riparian buffers and controlled drainage; designs, how they work to protect stream health and reduce nitrogen and pesticides. Recommendations for best practices are provided for the coastal plain, lower coastal plain and Tidewater, middle and upper coastal plain, Piedmont and mountain regions. A glossary of terms is included.
A good source of water is a necessity for producing quality vegetables. During periods of drought, crop diversification and mulches can be used to cope with drought situations, but nothing will substitute for the timely application of water. This publication covers some guidelines for irrigation systems to help offset periods of drought in the Southeast United States.
Golf courses provide a unique setting for wetlands that can be used to provide both an environmental benefit and an aesthetic amenity. The research-based recommendations in this publication are intended to help you optimize concepts and designs for your next project.
This publication contains step-by-step guidelines for field calibration of center pivot and linear move irrigation systems. Proper calibration is required by law.
This publication contains step-by-step guidelines for determining irrigated acreage for hard hose traveler irrigation systems are presented. Proper calibration helps protect the environment and is required by law.
This publication provides guidelines and recommendations for proper irrigation scheduling of wastewater.
This publication explains calibration procedures for stationary and hard-hose traveler irrigation systems and how to determine acceptable application uniformity for the systems as established by the ninth and latest edition of the SB 1217 document (North Carolina 1217 Interagency Group, 2009). It does not invalidate the procedures (commonly referred to as the “catch can” method) described in AG-553-1 and AG-553-2 if operators want to use those for uniformity assessment. However, AG 553-1 and AG 553-2 do not fulfill the flow measurement calibration requirements currently established by the ninth edition of the SB 1217 document.
This publication discusses irrigation decisions that affect water and energy efficiencies.
Hand-move irrigation systems are normally used to irrigate small fields. Solid-set and permanent sprinkler irrigation systems are used for irrigation, frost/freeze protection, evaporative cooling, and land application of nutrient-rich effluent. Selection and management considerations for hand-move solid-set and permanent sprinkler irrigation systems are discussed in this article.
This publication provides a step-by-step description of how to use the gravimetric method to calibrate soil-water measuring equipment.
This publication discusses the causes of poor irrigation system performance. Some of these causes can be identified and corrected by the irrigator. Others require specialized evaluation equipment, and the corrections should therefore be performed by specially trained technicians.
This publication explains how you can make the most efficient use of water and energy by applying the right amount of water to cropland at the right time.