Articles by Author: Clemence Tarirai

Search results for Clemence Tarirai

We found 7 results for you
  1. Trends in diagnostic techniques and factors associated with tuberculosis treatment outcomes in Lesotho, 2010–2015

    Trends in diagnostic techniques and factors associated with tuberculosis treatment outcomes in Lesotho, 2010–2015

    Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases
    Tuberculosis is a global public health problem. Lesotho, a sub-Saharan country with high HIV and tuberculosis burden, launched the Three I’s programme of the World Health Organization in 2013. However, the outcomes of this intervention are scarcely known. This study...
  2. Practical means of scheduling irrigation of maize using a programmable pocket calculator

    Practical means of scheduling irrigation of maize using a programmable pocket calculator

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The irrigation scheduling model IRRISCHED-4, here described, enables the irrigator to choose one of four techniques for estimating crop water use, depending upon data available. Daily inputs include maximum and minimum temperatures, sunshine hours, leaf area index, crop factor, rain,...
  3. Estimating Class A pan evaporation at locations with sparse climatic data

    Estimating Class A pan evaporation at locations with sparse climatic data

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Class A pan evaporation was found to correlate closely with daylength-adjusted maximum daily air temperature (ATM), on a bimonthly basis. ATM and altitude were used as variables in a regression analysis to develop a series of evaporation-estimation equations for various...
  4. Typifying late-season weather for maize yield prediction

    Typifying late-season weather for maize yield prediction

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Long-term weather data were used to generate typical weather records. By substituting typical weather data for actual late-season weather data it was possible to compute yield predictions using the model CERES-Maize, and compare these with predictions based on full season...
  5. A simple method for supplementing long-term weather records in a maize-modelling exercise

    A simple method for supplementing long-term weather records in a maize-modelling exercise

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Missing weather data is a very real problem when using daily-incrementing crop growth simulation models. This is especially true in the case of daily air temperature and solar radiation data. The aim of this study was to compare two simple...
  6. An attempt at estimating solar radiation at South African sites which measure air temperature only

    An attempt at estimating solar radiation at South African sites which measure air temperature only

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Daily potential surface radiation values were calculated for selected South African weather stations. These were used, together with various air temperature parameters, to derive regression equations to estimate actual surface solar radiation at sites lacking the required instrumentation. A single...
  7. Thermal time bias in maize growth simulation due to mesoscale weather effects

    Thermal time bias in maize growth simulation due to mesoscale weather effects

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of cold air advection on the estimates of daily thermal time with a base temperature of 8°C (DTT8), calculated using maximum and minimum screen temperatures (max./min. values), was examined. Screen temperature data for at least three maize-growing seasons...