Theses and Dissertations

Issuing Body

Mississippi State University


Baldwin, Brian S.

Committee Member

Rude, Brian J.

Committee Member

Rushing, J. Brett

Committee Member

McCurdy, James D.

Date of Degree


Document Type

Graduate Thesis - Open Access

Degree Name

Master of Science


College of Agriculture and Life Sciences


Department of Plant and Soil Sciences


Tall fescue (Schedonorus arundinaceus), is a cool season perennial that provides grazing into the early summer months for southern livestock. Grazing the tall fescue variety, Kentucky-31, has negative effects on animal health, particularly after jointing. Two studies were arranged as randomized complete blocks in a split-plot design, with three replicates to compare: the effect of ten herbicides on seedhead suppression, or the effect of inter-seeding legumes [white clover (Trifolium repens) or alfafla (Medicago sativa)] coupled with nitrogen supplementation on fescue yield and forage nutritive value. The herbicides imazethapyr + 2,4-D and without, metsulfuron + chlorsulfuron, reduced seedheads emergence, but not yield compared to the control. Kentucky-31 inter-seeded with white clover and fertilized with 11 kg N ha-1 produced greater biomass than tall fescue fertilized with 11 kg N ha-1. The inter-seeding of white clover produced composite forage samples with greater in vitro dry matter disappearance than nitrogen supplemented alfalfa.



Tall fescue||white clover||alfalfa||endophyte||Neutral detergent fiber||acid detergent fiber||crude protein||pasture herbicides||seedhead suppression||nitrogen supplementation