Effect of tricalcium arsenate formulations on control of annual bluegrass (Poa annua)

Journal Article · Fri Jul 01 04:00:00 EDT 1977 · Weed Sci.; (United States)

OSTI ID:5004024

Carrow, R N; Rieke, P E

The influence of calcium arsenate (48% w/w tricalcium arsenate) rate, physical form, time of application, and phosphorus (P) rate on the growth of annual bluegrass (Poa annua L.) and Bray P/sub 1/ extractable arsenic (As) were investigated. Both powder and granular formulations reduced clipping yields and enhanced extractable As levels. Higher initial soil As activity and significantly better control were obtained in one study when the powder formulation was used. Similar levels of control were achieved whether the As was applied prior to germination or to the mature turf. Soil P-levels did not influence the effectiveness of either As formulation.

• Research Organization: Michigan State Univ., East Lansing
• OSTI ID: 5004024
• Journal Information: Weed Sci.; (United States), Journal Name: Weed Sci.; (United States) Vol. 25:4; ISSN WEESA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ARSENIC
BIOLOGICAL EFFECTS
DATA
ELEMENTS
EXPERIMENTAL DATA
GERMINATION
GRASS
GROWTH
HERBICIDES
INFORMATION
NONMETALS
NUMERICAL DATA
PESTICIDES
PHOSPHORUS
PLANT GROWTH
PLANTS
PRODUCTIVITY
SEMIMETALS
SOILS