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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.
This publication presents basic information on factors (veil, water and plant relationships) to be considered in developing an effective irrigation schedule.
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.
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.
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.
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.
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.
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.
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 provides a step-by-step description of how to use the gravimetric method to calibrate soil-water measuring equipment.
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 contains step-by-step guidelines for determining irrigated acreage of stationary sprinkler irrigation systems.
This fact sheet describes management strategies designed to conserve and use existing water resources more efficiently in coastal plain soils.
North Carolina farmers grow crops on over 2 million acres of poorly drained soils. These fields represent nearly 40 percent of the state's cropland. This publication offers information on controlled drainage management guidelines for improving drainage water quality.
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.
This publication contains step-by-step guidelines for field calibration of hard hose and cable tow irrigation systems. Proper calibration is required by law.
This factsheet explains how wetlands type and location influence water quality, and it reviews the cases for development or preservation.
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.
Before installing a dual-purpose subsurface drainage and subirrigation system on your farm, have your site evaluated by the local Soil Conservation Service (SCS) to determine whether this option is suitable for your farm and your needs. If your site is found to be physically suitable, this publication will help you determine whether installing this type of system will be a wise investment.
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 to plan and maintain subirrigation systems by providing information on types of water supplies and pumps and water quality.
This publication provides guidelines and recommendations for proper irrigation scheduling of wastewater.
This publication contains step-by-step guidelines for field calibration of stationary sprinkler irrigation systems. Proper calibration is required by law.
This publication discusses irrigation decisions that affect water and energy efficiencies.
This publication explains how future agricultural practices must be designed and managed to protect water quality.
This publication summarizes design considerations, system operations and information on monitoring controlled drainage and subirrigation systems.
The center pivot and linear-move type irrigation systems are usually the most practical system for irrigating large, rectangular or regular shaped fields. Selection and management considerations for center pivot and linear-move type systems are discussed in this article.
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.
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 will help you understand hydrology (the movement of water above and below ground) and how it influences the effectiveness of management practices aimed at improving coastal water quality.