• Effect of Fertilizer and Brush Control on Soil Fertility

      McMurphy, W. E.; Rommann, L. M.; Stiegler, J. H.; Stritzke, J. F. (Society for Range Management, 1980-11-01)
      Seven years after herbicide application was applied to reduce woody vegetation and increase native grass, there was no change in total available soil NO3- N, P, and K in the surface 15 cm. However, the area of native grass conversion had more soil K in the surface 5 cm and a higher pH in the surface 15 cm than the area supporting woody vegetation. Brush control followed by seeding of tall fescue (Festuca arundinacea) and annual fertilization with N, P, and K increased total available soil P and K in the surface 15 cm. Most of the P increase was in the surface 5 cm. Fertilizer applied to areas seeded to fescue appeared to reduce soil pH from that of native grass conversion.