IMPROVING ASPEN POPLAR AND PRICKLY ROSE-COVERED RANGELAND WITH HERBICIDES AND FERTILIZER

Abstract

The improvement of brush-covered rangeland seeded to tame forage species following the application of three herbicide mixtures, with and without fertilizer, was documented. The area was located 193 km northeast of Regina, Saskatchewan, on a Waitville loam in the Grey (Podzol) soil association. The highest forage yields were reported on areas that received either a combination of 2,4-D + 2,4,5-T, 2,4-D + dicamba or 2,4-D + picloram and a yearly fertilizer treatment. The forage yields on the three previously mentioned treatments ranged from 109 to 139 g/m2 and from 394 to 424 g/m2 during the first and second years, respectively, of the experiment, respectively.