+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effect of glyphosate application timing and row spacing on weed growth in corn (Zea mays) and soybean (Glycine max)



Effect of glyphosate application timing and row spacing on weed growth in corn (Zea mays) and soybean (Glycine max)



Weed Technology 18(1): 177-182



Corn and soybean were planted in narrow- and wide-row spacings to study the effects of glyphosate application timing and row spacing on light interception and subsequent weed growth. Corn planted in narrow rows (38 cm) had greater light interception than corn planted in wide rows (76 cm) from 35 to 55 d after crop emergence. Soybean planted in narrow rows (both 19 and 38 cm) had greater light interception throughout the growing season than soybean in 76-cm rows. At maximum canopy closure, narrow-row soybean (both 19 and 38 cm) intercepted more light than narrow-row corn. Biomass of weeds emerging after glyphosate application was greater when soybean was planted in 76-cm than in 19- or 38-cm rows. However, weed biomass was generally similar in both row spacings of corn. Sequential glyphosate applications reduced weed biomass in corn each year compared with a single glyphosate application at the 5-cm weed height. Sequential glyphosate applications that followed initial glyphosate application to 10- or 15-cm-tall weeds did not reduce weed biomass compared with a single application.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 066184378

Download citation: RISBibTeXText

DOI: 10.1614/02-150b


Related references

Effect of glyphosate application timing and row spacing on corn (Zea mays) and soybean (Glycine max) yields. Weed Technology 18(1): 165-176, 2004

Effect of row spacing and herbicide application timing on weed control and grain yield in corn (Zea mays). Weed Technology 16(3): 548-553, 2002

Impact of glyphosate-resistant volunteer corn (Zea mays L.) density, control timing, and late-season emergence on yield of glyphosate-resistant soybean (Glycine max L.). Crop Protection 81: 38-42, 2016

Effect of planting date, residual herbicide, and postemergence application timing on weed control and grain yield in glyphosate-tolerant corn (Zea mays). Weed Technology 16(3): 488-494, 2002

Influence of herbicide application rate, timing, and interrow cultivation on weed control and corn (Zea mays) yield in glufosinate-resistant and glyphosate-resistant corn. Weed Technology 13(4): 807-813, 1999

Effect of weed removal timing and row spacing on soil moisture in corn (Zea mays). Weed Technology 20(2): 399-409, 2006

Effect of postemergence glyphosate application timing on weed control and grain yield in glyphosate-resistant corn: Results of a 2-yr multistate study. Weed Technology 17(4): 821-828, October-December, 2003

Effect of carrier volume on corn (Zea mays) and soybean (Glycine max) response to simulated drift of glyphosate and glufosinate. Weed Technology 16(3): 587-592, 2002

Effect of row spacing, mulching and weed control on weed growth and yield of soybean (Glycine max). Indian Journal of Agronomy 41(3): 427-432, 1996

Response of barnyardgrass (Echinochloa crus-galli) to glyphosate application timing and rate in glyphosate-resistant corn (Zea mays). Weed Technology 19(4): 830-837, 2005

Evaluation of weed control and crop tolerance with co-application of glyphosate and pyraflufen-ethyl in glyphosate-resistant soybean (Glycine max). Weed Technology 20(4): 1035-1039, 2006

Control of volunteer glyphosate-resistant corn (Zea mays) in glyphosate-resistant soybean (Glycine max). Weed Technology 20(1): 261-266, 2006

Weed Suppression for Weed Management in Corn ( Zea mays ) and Soybean ( Glycine max ) Production Systems 1. Weed Technology 14(4): 713-717, 2000

Management of Amaranthus rudis S. in glyphosate-resistant corn (Zea mays L.) and soybean (Glycine max L. Merr.). Crop protection 26(9): 1436-1443, 2007

Row spacing influences the critical timing for weed removal in soybean (Glycine max). Weed Technology 17(4): 666-673, 2003