Articles by Keyword: Open Hydroponic System

Search results for Open Hydroponic System

We found 169 results for you
  1. Comparative performance of tomato cultivars cultivated in two hydroponic production systems

    Comparative performance of tomato cultivars cultivated in two hydroponic production systems

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Cultivar selection for different hydroponic production systems is an important management decision, potentially impacting the tomato grower’s profitability. Knowledge on the performance of tomato cultivars, in specific hydroponic systems (open-bag and closed system) under South African conditions, is still very...
  2. Die evaluering van vier <em>Eragrostis curvula</em> ekotipes met weidende skape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The evaluation of four Eragrostis curvula ecotypes with grazing sheep. Four ecotypes of Eragrostis curvula, namely, Cape Province 5, Ermelo, Pearston 204 and Makwassie 150 were evaluated in a grazing trial with sheep, at three stocking rates, during two growing...
  3. Open Source as a viable technical resource for Nigeria's developing health system

    Open Source as a viable technical resource for Nigeria's developing health system

    This article provides an in-depth analysis into the usefulness of Open Source Electronic Health Recording Systems for Nigeria's struggling health care system. It critiques the present quality of care received by patients, while advocating a revised education and management infrastructure...
  4. The Blackwood Group System: its relevance for sustainable forest management in the southern Cape

    Item type: Journal Article • Journal: South African Forestry Journal
    The invasion status of Australian blackwood, Acacia melanoxylon, is assessed against its value as a commercial tree in the southern Cape forests. The species was introduced from Australian rain forests and planted extensively in the southern Cape forests since 1909...
  5. ‘N vergelyking tussen <em>digitaria eriantha</em> steud. subsp. <em>eriantha</em> (smutsvingergras) en <em>eragrostis curvula</em> (schrad.) nees (oulandsgras) as hooigewasse vir skape<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Smutsvingergras‐ en oulandsgrashooi is by drie bemestingspeile, naamlik 30 kg N + 2,8 kg P ha‐1; 90 kg N + 8,3 kg P ha‐1 en 150 kg N + 13,8 kg P ha‐1 geproduseer. Die hooi is in alle voorgenoemde...
  6. How economic are the farming units of Leliefontein, Namaqualand?

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Nomadic pastoralism has been practised in Leliefontein for centuries. In 1984, the area was formally divided into 47 so‐called ‘economic units’ on the assumption that this agricultural approach would (a) promote development in the region and (b) introduce conservation management...
  7. The Potch System: An approach to the management of semi‐arid grasslands in southern Africa

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A host of grassland management systems have been published and recommended. Whereas earlier approaches to grassland management emphasized the systematic resting aspect, the systems published since 1966 have tended to stress the degree of utilization of the grassland sward. In...
  8. Effect of planting time on yield and fruit size of open-planted strawberries in the Transvaal

    Effect of planting time on yield and fruit size of open-planted strawberries in the Transvaal

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of three planting times (fortnightly intervals) on strawberry cultivars Selekta, Tioga, Parfaite and Rolinda was studied for two seasons. There was no cultivar × planting time interaction, and the yield of all cultivars was significantly reduced from earlier...
  9. Clay-substrate application to sandy open-cast mine soils

    Clay-substrate application to sandy open-cast mine soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The review gives some insight into the objective of amelioration to improve fertility of sandy soils. The research concept is based on the high water and cation exchange capacity of clay minerals. Technological and economic problems as well as practicable...
  10. Maize cropping system analysis and economic comparison for two environments

    Maize cropping system analysis and economic comparison for two environments

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of different maize cropping systems and economic implications were investigated at two localities from 1994 to 2000. Soil types differed, and the topsoil at Bloekomspruit and Viljoenskroon contained 17% and 5% clay, respectively. The five primary cropping systems...