The Effects of Mowing On Annual Ryegrass Used As a Nursecrop.

The competitive nature of annual ryegrass has caused problems across Texas roadsides when used as a nurse crop. Two less competitive genotypes of annual ryegrass, dwarf and early-maturing, were evaluated to determine if they can provide ample erosion control without interfering with the establishment of wildflowers and perennial grasses. Plots were set up in four climate zones across Texas to measure the variation between zones. Wildflower, annual ryegrass, and perennial grass were seeded at different rates to conclude the best rates. Plots were split into mowed versus non-mowed to determine if mowing impacts wildflower and perennial grass establishment. Data collected included species, height, numbers of plants, and percent groundcover. The objective is to design a protocol to establish winter groundcover that does not out compete with desired warm-season plants.