Date of this Version
Thesis (M.S.)—University of Nebraska—Lincoln, 1959. Department of Agronomy.
The principal objective of the investigations reported here was to study the effects of different clipping treatments vs. grazing upon several grasses. A study of 10 different clipping methods was conducted at Lincoln, Nebraska in 1957 and 1958. The treatments involved the following intensities of foliage removal at 14-day and 28-day intervals during the growing season: (1) Clipping to a uniform height of five inches. (2) Clipping to simulate the degree of grazing in the pasture. (3) Light rate of foliage removal, based on the estimated forage requirement of one 600-700 pound steer per acre. (4) a heavy rate of foliage removal, based on the estimated forage requirement of two steers per acre.
The study was conducted in exclosures in duplicate pastures of three cool-season grasses – smooth bromegrass, intermediate wheatgrass, and tall wheatgrass – and three warm-season grasses – big bluestem, switchgrass, and side-oat grama. Sand Lovegrass was included in the mixture in one pasture of each of the warm-season grasses.
Some of the results were that the study found no significant differences between the total herbage yields obtains from clipping at 14-day and 28-day intervals under the three rates of foliage removal, and also, there was also no significant differences between the average yields from clipping to simulate the degree of grazing in the pastures and the light rate of foliage removal in either year.
Advisor: Dr. Elverne C. Conard.