Agricultural Resources and Environmental IndicatorsThe Service, 1997 |
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Page 44
... organic matter ) can sometimes produce very high yields without large increases in input use ( Vesterby and Krupa , 1993 ) . Erodibility . A commonly used measure of soil quality is highly erodible land ( HEL ) , which is of particular ...
... organic matter ) can sometimes produce very high yields without large increases in input use ( Vesterby and Krupa , 1993 ) . Erodibility . A commonly used measure of soil quality is highly erodible land ( HEL ) , which is of particular ...
Page 47
... organic matter , microbial biomass , carbon and nitrogen content , soil structure , water infiltration , and crop yield . Because of the correlation across these properties , a few key attributes can be selected as soil quality ...
... organic matter , microbial biomass , carbon and nitrogen content , soil structure , water infiltration , and crop yield . Because of the correlation across these properties , a few key attributes can be selected as soil quality ...
Page 48
... organic matter , and reducing the amount of nitrogen fixed by legumes ( NAS , 1993 ) . Biological Degradation . According to the NAS ( 1993 ) , biological degradation is perhaps the most serious form of soil degradation because it ...
... organic matter , and reducing the amount of nitrogen fixed by legumes ( NAS , 1993 ) . Biological Degradation . According to the NAS ( 1993 ) , biological degradation is perhaps the most serious form of soil degradation because it ...
Page 84
... organic chemicals , primarily PCB's and DDT that are often found in fish samples . Atmospheric deposition of toxics , including pesticides , and contaminated sediments are the leading sources of impairment . The Chesapeake Bay , the ...
... organic chemicals , primarily PCB's and DDT that are often found in fish samples . Atmospheric deposition of toxics , including pesticides , and contaminated sediments are the leading sources of impairment . The Chesapeake Bay , the ...
Page 86
... organic matter content , clay content , and permeability all affect the potential for nutrients in soils to leach through the root zone . Important nutrients from a water quality standpoint are nitrogen and phosphorus . Nitrogen ...
... organic matter content , clay content , and permeability all affect the potential for nutrients in soils to leach through the root zone . Important nutrients from a water quality standpoint are nitrogen and phosphorus . Nitrogen ...
Common terms and phrases
acreage active ingredients annual areas Atrazine average benefits chemical Clean Water Act Conservation Compliance Conservation Program Conservation Reserve Program conservation tillage Corn Belt cost-sharing costs cotton Crop Residue Management crop rotation cropland Cropping Practices Survey Department of Agriculture Econ Economic Research Service effects environmental estimated ethanol factors Farm Act farm machinery farmers farmland Federal field crops funding fungicides groundwater herbicides highly erodible improved incentive increased inputs insecticides irrigation irrigation water land major management practices manure million acres National Natural Resources nitrate nitrogen no-till nonpoint source pollution NRCS nutrient management operations pasture payments pest management pesticide phosphate plant pollution potential Protection reduce regions Report Ribaudo runoff signup soil erosion soil quality Southern Plains soybeans tillage systems U.S. Department U.S. Dept USDA vegetable water quality watersheds weed Wetland Reserve Program wetlands wheat wildlife
Popular passages
Page 58 - Grazing fees on public lands administered by the Bureau of Land Management (BLM) of the Department of the Interior, and the Forest Service (FS) of the Department of Agriculture are set by law.
Page 328 - Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska. Nevada. New Mexico, North Dakota. Oklahoma. Oregon, South Dakota. Texas, Utah, Washington, Wisconsin, Wyoming, American Samoa, Guam, Puerto Rico, US Virgin Islands Internal Revenue Service SS-8 Determinations PO.
Page 133 - Agriculture shall declare to be a pest, and (2) any substance or mixture of substances Intended for use as a plant regulator, defoliant or desiccant.
Page 21 - The ultimate objective of the Convention is to achieve the 'stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate...
Page 218 - BC, 1995, Nutrients in ground water and surface water of the United States— An analysis of data through 1992: US Geological Survey Water-Resources Investigations Report 95-4031 , 74 p.
Page 128 - Act of 1996 defines safe for dietary consumption products as "a reasonable certainty that no harm will result from aggregate exposure" including food, drinking water, and nonoccupational exposures. Under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and its amendments, the EPA decides which pesticides are registered and prescribes labeling and other regulatory requirements on their use to prevent unreasonable adverse effects on health and the environment. EPA also regulates pesticides...
Page 287 - ... $/acre/yr tons/acre/yr Appalachian 29 19 4 54.92 11 Com Belt 423 193 8 80.93 9 Delta 71 47 40 40.53 10 Lake States 144 68 8 59.13 6 Mountain 139 76 0 30.76 8 Northeast 16 10 0 43.95 5 Northern Plains 179 100 0 39.71 7 Pacific 30 18 0 49.00 8 Southeast 42 28 20 38.52 9 Southern Plains 101 58 0 32.45 25 US 1,174 616 80 53.79 10 CRP contracts scheduled to expire in September 1996, covering more than 14 million acres. As with the 1995 early-out opportunity, certain environmentally sensitive acres...
Page 29 - The timber culture laws provided for the granting of public lands to settlers on condition that they plant and cultivate trees on the lands granted.
Page 21 - Convention) is to achieve stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system. Such a level should be achieved within a timeframe sufficient to allow ecosystems to adapt naturally to climate change, to ensure that food production is not threatened, to avoid adverse health effects and to enable economic development to proceed in a sustainable manner.
Page i - December 1994, and expands coverage to include more detailed data and analysis on resourceconserving production practices. AREI takes stock of how natural resources (land and water) and commercial inputs (energy, nutrients, pesticides, and machinery) are used in the agricultural sector; shows how they contribute to environmental quality; and links use and quality to technological change, production management practices, and farm programs. Our objective is to provide a comprehensive source of data...