Crop and Soil Sciences
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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. Part 1 of this circular provides a step-by-step guide to taking a sample that will be representative of your field. Part 2 provides additional steps for preparing a fresh cover crop sample to send to the Agricultural and Environmental Services Laboratory so it can be analyzed to determine nitrogen availability to the following crop. Equation examples and data sheets are also provided in order to help users calculate necessary information for submission using the given formulas.
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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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Occasionally, turfgrass areas begin to thin out and moss and algae start to form. These primitive plants develop because conditions for growing dense, healthy turf have declined. This publication gives you preventive practices and chemical suppression tips for controlling moss and algae in turf.
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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 quality of drinking water from wells may be compromised during a flood. Flooding around the well increases the risk of drinking water becoming contaminated with bacteria or any other contaminants, rendering it unsafe to drink and for washing food items. This publication describes the steps to take when you suspect that your well has been affected by flooding. Steps include well inspection, calculation of the depth of water and storage capacity of the well, shock chlorination, and laboratory bacteria testing. The circular also discusses tips on how to know whether the water is safe to drink again.
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Variety selection is one of the biggest decisions and investments cotton growers make each year. In 2010, the UGA Extension Cotton Agronomists implemented the UGA On-Farm Cotton Variety Evaluation Program to assist in this decision. Varieties are evaluated across a wide range of environments in the cotton producing regions of Georgia in cooperation with county agents and industry partners. The implementation of this program has made a tremendous impact on variety selection from year to year, and it will continue to have the same impact in the future.
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This publication is a monthly guide for professional managers of commercial, recreational, municipal, institutional or private grounds in Georgia.
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C 1003
Centipedegrass Decline
Centipedegrass is ideal for the homeowner who wants a lawn that needs little care. It can be established by either seed or vegetative parts and does not require much fertilizer. Compared to other lawn grasses, it is moderately resistant to insects and diseases. Although centipedegrass is a relatively low maintenance grass, proper management is still required.
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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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