Items where Author is "Johnson, R.W."

1981

Johnson, R.W. and Back, P.V. (1981) Some studies on the chemical control of Dawson gum or blackbutt (Eucalyptus cambageana). Part III. Basal bark and cut stump treatment of multi-stemmed regrowth. Queensland Journal of Agricultural and Animal Sciences, 38 (1). pp. 33-42.

1977

Johnson, R.W. and Back, P.V. (1977) Combination of cropping and spraying to control brigalow (Acacia harpophylla) suckers. Queensland Journal of Agricultural and Animal Sciences, 34 (2). pp. 197-203.

Johnson, R.W. and Back, P.V. (1977) Control of brigalow (Acacia harpophylla) in cattle country by two aerial spraying applications 10 months apart. Queensland Journal of Agricultural and Animal Sciences, 34 (1). pp. 9-24.

Johnson, R.W. and Back, P.V. (1977) Relationship between burning and spraying in the control of brigalow (Acacia harpophylla) regrowth. 1. Burning as a pre-spraying treatment. Queensland Journal of Agricultural and Animal Sciences, 34 (2). pp. 179-187.

Johnson, R.W. and Back, P.V. (1977) Relationship between burning and spraying in the control of brigalow (Acacia harpophylla) regrowth. 2. Burning as a post-spraying treatment. Queensland Journal of Agricultural and Animal Sciences, 34 (2). pp. 189-196.

1976

Johnson, R.W. (1976) Competition between brigalow (Acacia harpophylla) suckers and establishing pastures following pulling and burning. Queensland Journal of Agricultural and Animal Sciences, 33 (1). pp. 43-65.

1974

Johnson, R.W. and Back, P.V. (1974) Control of brigalow (Acacia harpophylla) regrowth by single and double ploughings. Queensland Journal of Agricultural and Animal Sciences, 31 (4). pp. 351-361.

Johnson, R.W. and Back, P.V. (1974) Some studies into the chemical control of Dawson Gum or Blackbutt (Eucalyptus cambageana). Part I - Introduction and stem injection of virgin trees. Queensland Journal of Agricultural and Animal Sciences, 31 (3). pp. 263-269.

Johnson, R.W. and Back, P.V. (1974) Some studies into the chemical control of dawson gum or blackbutt (Eucalyptus cambageana). Part II. Stem injection of sapling trees. Queensland Journal of Agricultural and Animal Sciences, 31 (4). pp. 309-315.

1973

Johnson, R.W. and Back, P.V. (1973) Influence of environment on methods used to control brigalow (Acacia harpophylla). Queensland Journal of Agricultural and Animal Sciences, 30 (3). pp. 199-211.