Agricultural chemicals

Agricultural chemicals

Includes chemicals designed for agricultural use for protection of crops from fungus and insects, as well as for the growth and protection of plants.

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Agricultural chemicals > Pesticides

special review

Agricultural chemicals; Pesticides

Formerly known as Rebuttable Presumption Against Registration (RPAR), this is the regulatory process through which existing pesticides suspected of posing unreasonable risks to ...

topography

Agricultural chemicals; Pesticides

The physical features of a surface area including relative elevations and the position of natural and man-made (anthropogenic) features.

total dissolved phosphorous

Agricultural chemicals; Pesticides

The total phosphorous content of all material that will pass through a filter, which is determined as orthophosphate without prior digestion or hydrolysis. Also called soluble P. ...

Total Dissolved Solids (TDS)

Agricultural chemicals; Pesticides

All material that passes the standard glass river filter; now called total filtrable residue. Term is used to reflect salinity.

Total Maximum Daily Load (TMDL)

Agricultural chemicals; Pesticides

A calculation of the highest amount of a pollutant that a water body can receive and safely meet water quality standards set by the state, territory, or authorized tribe.

Total Petroleum Hydrocarbons (TPH)

Agricultural chemicals; Pesticides

Measure of the concentration or mass of petroleum hydrocarbon constituents present in a given amount of soil or water. The word "total" is a misnomer--few, if any, of the ...