Smutgrass (Sporobolus indicus) control in bahiagrass is improved with applications of herbicide and fertilizer

Smutgrass is an invasive weed species that can quickly outcompete bahiagrass because of its aggressive growth, prolific seed production, and rhizomatous nature. Total renovation of bahiagrass pastures or hayfields is generally not a feasible or economically viable option for most producers. Therefor...

Full description

Saved in:
Bibliographic Details
Published in:Weed technology 2022-10, Vol.36 (5), p.700-707
Main Authors: Shay, Nicholas J., Baxter, Lisa L., Basinger, Nicholas T., Schwartz, Brian M., Belcher, Jason
Format: Article
Language:English
Subjects:
agricultural pesticides
Ammonium
Ammonium nitrate
Coastal plains
Crop science
economics
Essential nutrients
Fertility
Fertilizers
forages
Grasses
Ground cover
Herbicides
Hexazinone
Integrated weed management plan
Invasive plants
Invasive species
Nutrients
Paspalum notatum
Pasture
Pastures
Soil fertility
Sporobolus indicus
Weed control
Weeds
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Smutgrass is an invasive weed species that can quickly outcompete bahiagrass because of its aggressive growth, prolific seed production, and rhizomatous nature. Total renovation of bahiagrass pastures or hayfields is generally not a feasible or economically viable option for most producers. Therefore, controlling the continual spread of smutgrass will require an integrated weed management (IWM) plan that incorporates multiple strategies. The objective of this study was to test the interactions of herbicides and fertilizers on smutgrass control in bahiagrass and determine the most efficacious and economical IWM plan for low-input bahiagrass systems. This research was conducted on a mixture of ‘Tifton 9’ and ‘Pensacola’ bahiagrass at the Alapaha Beef Station in Alapaha, GA. The study design was a randomized complete block with a three-by-four factorial treatment arrangement with six replications. Fertility treatments included 56 kg N ha–1 (ammonium nitrate, 34% N) + 56 kg K2O ha–1, 56 kg N ha–1, and an unfertilized control. Smutgrass was reduced to
ISSN:0890-037X
1550-2740
DOI:10.1017/wet.2022.73