Theses and Dissertations at Montana State University (MSU)
Permanent URI for this collectionhttps://scholarworks.montana.edu/handle/1/733
Browse
2 results
Search Results
Item Management options for producers who traditionally plant barley for grain or forage(Montana State University - Bozeman, College of Agriculture, 2007) Boss, Darrin Lewis; Chairperson, Graduate Committee: Philip L. Bruckner; Robert Stougaard (co-chair)The objective of the experiment was to evaluate barley management options by varying seed band width, seeding rates, and harvest endpoint under dryland production conditions in Northern Montana. The experimental design was a randomized complete block with a factorial arrangement and was conducted for three years. Treatments consisted of two cultivars ('Harrington' and 'Haybet'), two band widths (125 mm and 193 mm), and three seeding rates (140, 184 and 226 seeds m-2). Year effects were significant. All established plant populations were lower than planned. Band width was confounded with seeding rate. Established plant populations increased from the narrow to the wide band width, any effect attributed to band width appears to be more what would be expected for increasing the seeding rate. Malt quality was never achieved and no treatment combination aided in moving the quality towards an acceptable malt grade of barley. Feed barley production was greatest in 2001 for the lowest seeding rate where as in 2002 and 2003 no difference existed between seeding rates.Item Agronomics of Reseeding winterkilled winter wheat(Montana State University - Bozeman, College of Agriculture, 2009) Allen, Thomas Lee; Chairperson, Graduate Committee: Phillip L. Bruckner.Winterkill has long been a problem for winter wheat growers in Montana. In any given year up to 50% of the seeded acres of winter wheat may have to be reseeded to spring wheat. Research has addressed injury thresholds on when to reseed winter wheat. But little information is available regarding reseeding to spring wheat. The objectives of this study were to determine the level of injury whereby it is more profitable to reseed to spring rather than leave the reduced stand of winter wheat. Eighteen treatments were used to simulate different levels of winter injury and methods of termination of the winter wheat before reseeding. Soil water and nitrogen use by the winter wheat before termination was also determined. Mechanical and chemical termination of 60%, 40% and 20% stands of winter wheat were replanted to spring wheat. An early and late reseeding was also imposed. A 20% stand of winter wheat out yielded the early seeded spring wheat check in all environments. Early reseeded treatments were significantly better than late reseeded treatments. There was no difference between mechanically and chemically terminated plots.