- 行业: Government
- Number of terms: 41534
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Pollutants that are not discharged or emitted from a specific "point" source, such as a pipe or smokestack. Nonpoint water pollutants are often carried from dispersed, diverse sources into water channels by rain-induced runoff. Runoff from streets, open pit and strip mines, and agricultural fields are prominent examples (see agricultural pollution). Nonpoint source air pollutants (often called fugitive emissions) include small dispersed sources, e.g., fireplace smoke, and uncontained emissions, like dust blown from fields and unpaved roads.
Industry:Agriculture
A statistical allowance used in farm income compilations to credit farmers with income for the value of farm products used on the farm (instead of being sold for cash) and the rental value of farm dwellings. It assumes farmers otherwise live rent-free on their farm business premises.
Industry:Agriculture
Nonrenewable resources, in contrast to renewable resources, do not naturally replenish themselves within time limits that permit sustained yield (i.e., minerals and hydrocarbons, such as phosphate rock, limestone, petroleum). Nonrenewable resources may be called stock resources because of their fixed supply. Some resources, such as soil and water, can be termed either nonrenewable or renewable depending on circumstances. For example, some underground reservoirs replenish so slowly they are effectively nonrenewable, such as the Ogalala Aquifer. Soil that is eroding faster than its T value faces eventual depletion.
Industry:Agriculture
The annual process by which member countries report to the WTO information on commitments, changes in policies, and other related matters as required by the various agreements.
Industry:Agriculture
Undesirable plants that infest either land or water resources and cause physical and economic damage. Under the Federal Noxious Weeds Act of 1974, (P.L. 93-629, January 3, 1975), the Animal and Plant Health Inspection Service works to prevent noxious weeds from entering the country, and conducts cooperative control/eradication programs with the states. Local governments frequently impose taxes on landowners to carry out noxious weed control programs.
Industry:Agriculture
A chemical element or compound that is essential for the metabolism and growth of an organism.
Industry:Agriculture
the practice of applying fertilizers and plant nutrients such as manures in a time and manner to best ensure they will be taken up by growing plants and not leach into the groundwater or wash away. The term may mean the use of natural methods of enhancing soil fertility, such as through crop rotations and green manures, and the use of soil tests to determine the fertility needs of the soil.
Industry:Agriculture
Contamination by excessive inputs of nutrient: a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrogen or phosphorus, stimulate algal growth. Sources of nutrient pollution include runoff from fields and pastures, discharges from septic tanks and feedlots, and emissions from combustion.
Industry:Agriculture
Federal programs in Puerto Rico and American Samoa that provide food assistance through block grant funds in lieu of food stamps, and to the Northern Marianas under a covenant governing U.S. relations with that jurisdiction.
Industry:Agriculture
Federal guidelines established for meals served in child nutrition meal service programs governing the types of foods and nutrient content required in order to be eligible for reimbursement.
Industry:Agriculture
