Crop and Soil Sciences Resources
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C 1077
Cover Crop Biomass Sampling
Cover crops are one of the most important practices that farmers can use to improve their soils and the sustainability of their production system. Knowing how much biomass there is in a field is a critical piece of information for cover crop management. This resource covers taking a representative sample, preparing a sample for the lab, and provides a guide to help you calculate wet and dry weights.
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Shock chlorination is the process by which home water systems such as wells, springs, and cisterns are disinfected using household liquid bleach (or chlorine). Shock chlorination is the most widely recommended means of treating bacterial contamination in home water systems. This publication contains guidelines for safely and effectively using shock chlorination — a standard treatment for sanitizing your well system.
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This publication provides current guidance for insect, disease, and weed control in commercial pecan orchards.
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This comprehensive resource was fully revised in 2025-26 and represents the latest information available on the commercial production of short-day onions in south Georgia.
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Cation exchange capacity (CEC) is a measure of the total negative charges within the soil that adsorb plant nutrient cations such as calcium (Ca2+), magnesium (Mg2+) and potassium (K+). As such, the CEC is a property of a soil that describes its capacity to supply nutrient cations to the soil solution for plant uptake.
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The University of Georgia Agricultural and Environmental Services Laboratories offer soil salinity testing to help farmers and the general public diagnose and manage problems associated with soil salinity. By definition, a saline soil contains excess soluble salts that reduce the growth of most crops or ornamental plants. This publication discusses soil salinity testing, data interpretation and recommendations, specifically those pertaining to the University of Georgia.
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B 892
Irrigating Tobacco
This publication is a comprehensive guide to irrigation methods for tobacco in Georgia.
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Some of the most widely adopted precision agriculture technologies include guidance systems that utilize a Global Positioning System (GPS). Although these technologies are most commonly utilized in row-crop agricultural systems, they also have many potential benefits in forage-based production systems. With so many different options to choose from, it can be a daunting task to determine which technologies are the best fit for a specific farming application and budget. When coupled with a differential GPS system (which are available in various levels of correction accuracy), the accuracy of these guidance systems can be greatly improved. The main goal of this bulletin is to cover the currently available GPS guidance options for forage production systems.
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C 858-16
Radon in Your Water
Radon is a naturally occurring, radioactive gas formed from the decay of uranium and radium found in geologic deposits. Exposure to radon gas most commonly occurs through elevated levels in home air. However, in Georgia and neighboring states there is a lesser, though still significant, risk of exposure to radon dissolved in drinking water. This circular addresses the issues on its occurrence, human exposure pathways, testing, interpretations, and remediation strategies.
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