Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-13T01:44:33.146Z Has data issue: false hasContentIssue false
  • English
  • Français

A Recirculating Spray System for Postemergence Weed Control in Row Crops

Published online by Cambridge University Press:  12 June 2017

C. G. McWhorter
C. G. McWhorter*
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Stoneville, Mississippi
Get access Rights & Permissions [Opens in a new window]

Abstract

A recirculating sprayer was developed for applying herbicides in row crops to weeds taller than the crop. Herbicide solutions are applied through solid stream nozzles above and at right angles to the rows, so that a trap collects herbicide spray not deposited on weeds. Trapped solution is returned to the original spray tank by gravity flow. Good to excellent control of pigweed (Amaranthus spp.), cocklebur (Xanthium spp.), and sesbania (Sesbania spp.) was obtained with (2,4-dichlorophenoxy)acetic acid (2,4-D) while monosodium methanearsonate (MSMA) effectively controlled johnsongrass (Sorghum halepense (L.) Pers.). The better treatments increased the harvested yields of soybeans (Glycine max (L.) Merr., var. Lee) 6 to 8 bu/A when weed infestations were severe at time of treatment. Use of the sprayer permits treatment with herbicides normally considered too toxic to crops, and reduces costs through recovery of most of the herbicide solution that is not intercepted by weeds.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 2 , March 1970 , pp. 285 - 287
Copyright
Copyright © 1970 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. McWhorter, C. G. and Hartwig, E. E. 1966. Cocklebur control in soybeans with 2,4-DB. Weeds 14:187–190.Google Scholar
2. Overton, J. R. and Andrews, Henry. 1964. Effects of time and rate of application of 2,4-DB on cocklebur control in soybeans. Proc. So. Weed Conf. 17:99–105.Google Scholar
3. Smith, Roy J. Jr. 1960. Effect of low rates of several phenoxyalkylcarboxylic acids on soybeans. Proc. So. Weed Conf. 13:243–244.Google Scholar
4. Williams, R. and Brown, L. C. 1963. Butoxone SB, postemergence hormone weed killer for control of cocklebur in soybeans. Proc. So. Weed Conf. 16:47–49.Google Scholar