Effect of four herbicides on the establishment and forage yield of stargrass in Puerto Rico
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Keywords

Herbicides--Puerto Rico
Forage grasses
Cynodont niemfuensis
Forage grasses--Weed control--Puerto Rico

How to Cite

Lugo, M. de L., Liu, L. C., & Ortiz, C. E. (1989). Effect of four herbicides on the establishment and forage yield of stargrass in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 73(2), 149-153. https://doi.org/10.46429/jaupr.v73i2.6415

Abstract

An experiment was performed at the AES-UPR Gurabo Substation to evaluate atrazine, simazine, diuron, and tebuthiuron for preemergence control of weeds in a stargrass pasture. Tebuthiuron at 3.36 kg a.i./ha was the most effective, and tebuthiuron at 1.68 kg a.i./ha was the second most effective. The remaining herbicides also provided satisfactory weed control. At 3.36 kg a.i./ha, tebuthiuron was somewhat phytotoxic to stargrass, but less so at 1.68 kg a.i./ha. None of the other herbicides produced severe stargrass injury. Stargrass yield was not affected by any of the herbicides. Crude protein content of stargrass was not affected by any herbicide tested.

https://doi.org/10.46429/jaupr.v73i2.6415
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