Integrating reduced herbicide use with mechanical weeding in corn (Zea mays)

Concern about the effects of pesticides on the environment and the desire to reduce purchased inputs are stimuli to reduce herbicide use. Field research was conducted at two locations for two growing seasons to identify integrated weed management practices in corn that are effective and economical....

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Bibliographic Details
Published in:Weed technology 1993-04, Vol.7 (2), p.382-389
Main Authors: Mulder, T.A, Doll, J.D
Format: Article
Language:English
Subjects:
Agricultural management
Agronomy. Soil science and plant productions
ANALISIS DE COSTOS
ANALISIS ECONOMICO
ANALYSE DES COUTS
ANALYSE ECONOMIQUE
APPLICATION A LA VOLEE
ATRAZINA
ATRAZINE
BAND PLACEMENT
BINAGE
Biological and medical sciences
Biological control and other methods
BROADCASTING
Broadcasting industry
CAVA
CHEMICAL CONTROL
COMPACTACION DEL SUELO
COMPACTAGE DU SOL
CONTROL QUIMICO
Corn
COST ANALYSIS
CROP YIELD
DESHERBAGE
DISTRIBUCION A VOLEO
ECONOMIC ANALYSIS
EPANDAGE EN BANDE
ESCARDA
ESPARCIMIENTO EN FAJAS
Fundamental and applied biological sciences. Psychology
GRAIN
GRANOS
HERBICIDAS
HERBICIDE
HERBICIDE MIXTURES
HERBICIDES
HOEING
Hoes
INTEGRATED CONTROL
LOW INPUT AGRICULTURE
LUCHA INTEGRADA
LUTTE CHIMIQUE
LUTTE INTEGREE
METOLACHLOR
METOLACHLORE
METOLACLORO
Parasitic plants. Weeds
Phytopathology. Animal pests. Plant and forest protection
Planting
reduced application rates
RENDEMENT DES CULTURES
RENDIMIENTO DE CULTIVOS
RETURNS
SOIL COMPACTION
Tillage
WEED CONTROL
Weeds
Wheat
WISCONSIN
ZEA MAYS
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Summary:Concern about the effects of pesticides on the environment and the desire to reduce purchased inputs are stimuli to reduce herbicide use. Field research was conducted at two locations for two growing seasons to identify integrated weed management practices in corn that are effective and economical. Weed control treatments included PRE application of a herbicide mixture of 1.8 kg ai ha-1of atrazine plus 2.2 kg ai ha-1of metolachlor alone, this mixture broadcast or band-applied at a reduced rate in combination with mechanical weeding, and mechanical weeding alone. Weed control, corn yield, and economic returns were generally higher in treatments combining herbicides and mechanical weeding than those using only mechanical measures. Without herbicides, timeliness of rotary hoeing was critical. Herbicide use can be reduced 50 to 75% in integrated systems with minimal risk of yield loss due to uncontrolled weeds.
ISSN:0890-037X
1550-2740
DOI:10.1017/S0890037X00027779