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- Phenoxy_herbicide abstract "A phenoxy herbicide is any member of a family of chemicals related to the growth hormone indoleacetic acid (IAA). When sprayed on broad-leaf plants they induce rapid, uncontrolled growth, eventually killing them. When sprayed on crops such as wheat or corn, it selectively kills just the broad-leaf plants in a field, the weeds, leaving the crops relatively unaffected. There are a wide variety of phenoxies in use today, further grouped into the phenoxyacetic, phenoxybutyric and phenoxypropionic subtypes, the latter itself containing the aryloxyphenoxypropionic subtype, which contains the greatest number of commercial variants. Chemically they are acids, and are typically applied in an ester or salt form.First introduced in 1946, these herbicides were in widespread use in agriculture by the middle of the 1950s. The best known phenoxy herbicides are MCPA, 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T). 2,4,5-T was later found to be inherently contaminated with the dioxin 2,3,7,8-tetrachlorodibenzo-para-dioxin (TCDD), and has since been banned in most countries. 2,4-D may also contain dioxin impurities, depending on the production method.".
- Phenoxy_herbicide thumbnail 2,4-Dichlorophenoxyacetic_acid_structure.svg?width=300.
- Phenoxy_herbicide wikiPageID "3452343".
- Phenoxy_herbicide wikiPageRevisionID "537913532".
- Phenoxy_herbicide hasPhotoCollection Phenoxy_herbicide.
- Phenoxy_herbicide subject Category:Herbicides.
- Phenoxy_herbicide type Abstraction100002137.
- Phenoxy_herbicide type Chemical114806838.
- Phenoxy_herbicide type Herbicide114906850.
- Phenoxy_herbicide type Herbicides.
- Phenoxy_herbicide type Material114580897.
- Phenoxy_herbicide type Matter100020827.
- Phenoxy_herbicide type Part113809207.
- Phenoxy_herbicide type PhysicalEntity100001930.
- Phenoxy_herbicide type Relation100031921.
- Phenoxy_herbicide type Substance100019613.
- Phenoxy_herbicide comment "A phenoxy herbicide is any member of a family of chemicals related to the growth hormone indoleacetic acid (IAA). When sprayed on broad-leaf plants they induce rapid, uncontrolled growth, eventually killing them. When sprayed on crops such as wheat or corn, it selectively kills just the broad-leaf plants in a field, the weeds, leaving the crops relatively unaffected.".
- Phenoxy_herbicide label "Phenoxy herbicide".
- Phenoxy_herbicide label "氯苯氧基類除草劑".
- Phenoxy_herbicide sameAs m.09d6t6.
- Phenoxy_herbicide sameAs Q7181399.
- Phenoxy_herbicide sameAs Q7181399.
- Phenoxy_herbicide sameAs Phenoxy_herbicide.
- Phenoxy_herbicide wasDerivedFrom Phenoxy_herbicide?oldid=537913532.
- Phenoxy_herbicide depiction 2,4-Dichlorophenoxyacetic_acid_structure.svg.
- Phenoxy_herbicide isPrimaryTopicOf Phenoxy_herbicide.