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A C F G M N R S

A:
Ask an Earth Scientist - Answers specific questions related to volcanoes, earthquakes and seismology, natural hazards, environment and hydrology, sediments and sedimentary rocks, igneous rocks and minerals [National Aeronautics and Space Administration (NASA)]

C:
Climate Prediction Center - Famine Early Warning System Network (FEWS-Net); Mesoamerican Famine Early Warning System (MFEWS); Asian Flood Network (AFN). [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Weather Service (NWS)]

F:
FS INFO - National Forest Service Library catalog--indexing forestry and natural resources literature, including many full-text links. [U.S. Department of Agriculture (USDA), Forest Service]

G:
Grassland Soil and Water Research Laboratory - Develops technology for maximizing forage and crop production; controlling non-economic brush and weeds; and solving problems relating to efficient use of soil and water, crop production, soil fertility, erosion, hydrology, and water quality [U.S. Department of Agriculture (USDA), Agriculture Research Service (ARS)]

M:
Midcontinent Agricultural Chemical Research Program - Homepage for the research on occurrence, movement, flux, fate, and effects of agricultural chemicals, such as pesticides, in 25 states by the Midcontinent Agricultural Chemical Research Project (MACRP) with links to study results and publications. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

N:
National Agriculture Compliance Assistance Center - Is the first stop for information about environmental requirements that affect the agricultural community [U.S. Environmental Protection Agency (EPA)]

National Design, Construction and Soil Mechanics Center - interdisciplinary technical support for design, construction, operation, and rehabilitation of complex engineering projects [U.S. Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS)]

National Soil Erosion Research Laboratory (NSERL) - Carries out research on the processes of soil erosion by water to develop methods to control soil erosion and reduce its adverse environmental effects [U.S. Department of Agriculture (USDA), Agriculture Research Service (ARS)]

National Soil Tilth Laboratory (NSTL) - Research for the development and evaluation of management practices that enhance water quality while ensuring conservation of the nation's soil and water resources [U.S. Department of Agriculture (USDA), Agriculture Research Service (ARS)]

Natural Resources and Environment - Information on sustainable soil and water conservation and management practices, whole farm environmentally-friendly farming, and providing a gateway to information on invasive plants, animals, and microbes. [U.S. Department of Agriculture (USDA), Agriculture Research Service (ARS), National Agricultural Library]

Northern Plains Agricultural Research Laboratory - The NPARL mission is to develop ecologically based strategies, technologies, and products for the sustainable management of crops and rangeland, and natural resource systems. [U.S. Department of Agriculture (USDA), Agriculture Research Service (ARS)]

R:
Record Group 54: Records of the Bureau of Plant Industry, Soils, and Agricultural Engineering, 1879 - 1972 - National Archives' Archival Research Catalog description for Record Group 54: Records of the Bureau of Plant Industry, Soils, and Agricultural Engineering, 1879 - 1972 [U.S. National Archives and Records Administration (NARA)]

Record Group 97: Records of the Bureau of Agricultural and Industrial Chemistry, 1862 - 1962 - National Archives' Archival Research Catalog description for Record Group 97: Records of the Bureau of Agricultural and Industrial Chemistry, 1862 - 1962 [U.S. National Archives and Records Administration (NARA)]

S:
Soil Classification - Reference material for soil classification from USDA NRCS [U.S. Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS)]

Soil Health - Soil health, also referred to as soil quality, is how well soil does what we want it to do. [U.S. Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS)]

Soils - Provides state-of-the-art soil survey technology, standards, data, and expertise [U.S. Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS)]

Standard Reference Materials (SRMs) - NIST supports accurate and compatible measurements by certifying and providing over 1300 Standard Reference Materials® with well-characterized composition or properties, or both. These materials are used to perform instrument calibrations in units as part of overall quality assurance programs, to verify the accuracy of specific measurements and to support the development of new measurement methods. [U.S. Department of Commerce (DOC), National Institute of Standards and Technology (NIST), Various laboratories]