Articles by Author: Matt Barnes

Search results for Matt Barnes

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  1. Grazing management that regenerates ecosystem function and grazingland livelihoods

    Grazing management that regenerates ecosystem function and grazingland livelihoods

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Adopting a systems view and regenerative philosophy can indicate how to regenerate ecosystem function on commercial-scale agro-ecological landscapes. Adaptive multi-paddock grazing management is an example of an approach for grazinglands. Leading conservation farmers have achieved superior results in ecosystem improvement,...
  2. The Genetic Control of Ring Width, Wood Density and Tracheid Length in the Juvenile Core of <em>Pinus patula</em>

    Item type: Journal Article • Journal: South African Forestry Journal
    Controlled crosses were made between six Pinus patula Schiede & Deppe plus trees selected in plantations. Six full-sib families and two commercial checks were planted in randomised complete block thrice-replicated progeny tests at two sites in Zimbabwe. At 7,5 years,...
  3. Genetic Parameters and Provenance Productivity of <em>Pinus oocarpa</em> and <em>Pinus patula</em> ssp. <em>tecunumanii</em>

    Item type: Journal Article • Journal: South African Forestry Journal
    Results are presented of a provenance-progeny test of six populations of Pinus oocarpa Schiede and two of P. patula Schiede & Deppe in Schlecht. & Cham. ssp. tecunumanii (Equiluz & Perry) Styles; each population was represented by 8 or 16...
  4. Runoff and soil loss on a sandveld in Rhodesia

    Runoff and soil loss on a sandveld in Rhodesia

    Runoff and soil loss from veld treated in various ways was measured over a ten‐year period on a sandy soil with a 4 per cent slope in south‐western Rhodesia. The runoff as a percentage of the mean annual rainfall varied...
  5. Some effects of varying the duration, frequency and intensity of grazing on the growth of steers on veld

    Some effects of varying the duration, frequency and intensity of grazing on the growth of steers on veld

    In a grazing trial on open granite sandveld near Bulawayo, Rhodesia, three periods of stay in a paddock, namely, 5, 10 and 20 days, are being used in all combinations with 4 and 8 paddock units to give a range...
  6. Defoliation effects on perennial grasses — continuing confusion

    Defoliation effects on perennial grasses — continuing confusion

    Although an adequate knowledge of growth patterns and defoliation effects in perennial grasses is a prerequisite for the rational use of veld and pastures for animal production, our knowledge of this subject is far from adequate. The results of various...