Soil-Water Relations and Interference Between Devil's-Claw (Proboscidea louisianica) and Cotton (Gossypium hirsutum)

Soil water from plots containing cotton, devil's-claw, cotton with devil's-claw, and bare soil was measured throughout the growing season using a neutron probe and related to weed interference with the crop. Volumetric water content throughout the soil profile to a depth of 180 cm did not...

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Bibliographic Details
Published in:Weed science 1990-01, Vol.38 (1), p.39-44
Main Authors: Riffle, Michael S., Murray, Don S., Stone, John F., Weeks, David L.
Format: Article
Language:English
Subjects:
Agricultural soils
Agrology
BALANCE HIDRICO
BALANCE HIDRICO DEL SUELO
BILAN DE L'EAU DANS LE SOL
BILAN HYDRIQUE
COMPETENCIA BIOLOGICA
COMPETITION BIOLOGIQUE
CONTENIDO DE AGUA EN EL SUELO
Cotton
ETAPAS DE DESARROLLO DE LA PLANTA
FIBRAS VEGETALES
FIBRE VEGETALE
GOSSYPIUM HIRSUTUM
LLUVIA
MALEZAS
MAUVAISE HERBE
Moisture content
PERDIDAS
PERTE
PLUIE
RENDEMENT
RENDEMENT DES CULTURES
RENDIMIENTO
RENDIMIENTO DE CULTIVOS
Soil depth
Soil profiles
Soil water
Soil water content
STADE DE DEVELOPPEMENT VEGETAL
STRESS
TENEUR EN EAU DU SOL
Tillage
TUBIFLORAE
Weed Biology and Ecology
Weeds
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Summary:Soil water from plots containing cotton, devil's-claw, cotton with devil's-claw, and bare soil was measured throughout the growing season using a neutron probe and related to weed interference with the crop. Volumetric water content throughout the soil profile to a depth of 180 cm did not differ among treatments before the 5th or 6th week after cotton emergence. Greater water depletion occurred early in the season in plots containing devil's-claw which corresponded to a period of rapid weed growth. In plots containing only cotton, the largest reduction in water content occurred later in the season during peak bloom and early boll formation. Soil water content at depths greater than 105 cm remained unchanged in all plots throughout the season. Interference from devil's-claw reduced cotton lint yield 96% in 1986 and 46% in 1987. Higher rainfall and reduced weed populations in 1987 reduced the impact of weed interference on cotton lint yield.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500056083