Control of purple nutsedge (<i>Cyperus rotundus</i> L.) using glyphosate and 2,4-D sodium salt

Control of purple nutsedge (<i>Cyperus rotundus</i> L.) using glyphosate and 2,4-D sodium salt

Authors

  • M. Ameena Department of Agronomy, College of Agriculture, Vellayani 695 522, Thiruvananthapuram, Kerala
  • Sansamma George Department of Agronomy, College of Agriculture, Vellayani 695 522, Thiruvananthapuram, Kerala

Keywords:

Herbicidal mixtures, systemic herbicide, tuber germination, tuberisation

Abstract

An experiment was conducted to investigate the efficacy of two systemic herbicides, viz., glyphosate and 2,4-D Na salt at varying doses and combinations for the control of purple nutsedge (Cyperus rotundus L). The lowest dose (1.5 kg ai ha-1) of both herbicides gave complete control of shoot growth and there was no re-growth up to six weeks after spraying. Tuber dry weights also showed drastic reduction following herbicide application and glyphosate at 2.0 kg ai ha-1 recorded the least values. Data on tuber germination, however, indicated probable reinfestation, necessitating repeated application or the use of herbicidal mixtures for a complete kill of the weed.

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Published

28-10-2006

How to Cite

Ameena, M., & George, S. (2006). Control of purple nutsedge (<i>Cyperus rotundus</i> L.) using glyphosate and 2,4-D sodium salt. Journal of Tropical Agriculture, 42, 49–51. Retrieved from https://jtropag.kau.in/index.php/ojs2/article/view/116

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