Arsenic-phosphorus interactions on corn

Journal Article · Thu Jan 01 04:00:00 EST 1970 · Commun. Soil Sci. Plant Anal.; (United States)

DOI:https://doi.org/10.1080/00103627009366245· OSTI ID:6334038

Jacobs, L W; Keeney, D R

Samples of two widely divergent soils, a Waupum silt loam and a Plainfield sand, deficient in P, were treated with O, 20 or 80 ppm As and 0, 50, 100 or 300 ppm P in all possible combinations and cropped twice for 40 days to corn in the greenhouse. Arsenic had a much more pronounced toxicity to corn in the sand than on the silt loam. At the 80 ppm As level, P had little effect on As toxicity with the silt loam but enhanced toxicity with the sand and increasing rates of P increased As uptake by corn. At the 20 ppm As level, P did not affect As toxicity or uptake. Soil As extracted by N NH/sub 4/OAc (pH 7.0) decreased with time but increased with increasing levels of applied P. Bray Pl extractable As was not greatly affected by applied P or time, and appeared to be a more suitable ''available'' soil As test. From the results obtained, it would appear that P applications are not the solution to an As toxicity problem.

• Research Organization: Univ. of Wisconsin, Madison
• OSTI ID: 6334038
• Journal Information: Commun. Soil Sci. Plant Anal.; (United States), Journal Name: Commun. Soil Sci. Plant Anal.; (United States) Vol. 1:2; ISSN CSOSA
• 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.
ABSORPTION
ARSENIC
CEREALS
ELEMENTS
GRASS
GROWTH
MAIZE
NONMETALS
PHOSPHORUS
PLANT GROWTH
PLANTS
ROOT ABSORPTION
SEMIMETALS
SOILS
TOXICITY
UPTAKE
YIELDS