Rootplow seeder

Rootplow seeding of an area infested with tarbush. In a simultaneous operation the competing vegetation is killed; the grass seed is placed in a firm seedbed; the dead brush is used to partially shade the seeded area, thereby substantially reducing summer soil temperatures; and water is concentrated in basin pits. The brush conveyor was designed and built by Dr. George Abernathy, agricultural engineer with New Mexico State University.