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Growth evolution of maize in competition with Chenopodium album and Datura stramonium



Growth evolution of maize in competition with Chenopodium album and Datura stramonium



Proceedings of the second international weed control congress, Copenhagen, Denmark, 25-28 June 1996: Volumes 1-4: 215-219



Field studies were carried out on irrigated loamy soils during 1994 in Madrid, Spain, on maize biomass evolution with or without weed competition of Chenopodium album (1:1 maize relation density) and Datura stramonium (1:2). Field data were fitted satisfactorily in a logistic curve Y=A/(1+exp(-B*(x-C))), where Y=maize biomass (g/msuperscript 2) or leaf area index and x=thermal time. C. album reduced the maize maximum growth rate by 9% and D. stramonium by 18.5%.

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