Browsing Department of Geography and Environmental Science by Author "Murwira, Amon"
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Assessing the spectral separability of flue cured tobacco varieties established on different planting dates and under varying fertilizer management levels
Swotwa, Ezekia; Masuka, Anxious; Maasdorp, Barbara; Murwira, Amon (Hindawi, 2014-01-24)The NDVI was used to discriminate tobacco variety, assess fertilizer levels, and determine the impact of planting date on separating crops. A split plot design with four planting dates, September, October, November, and ... -
Remote sensing applications in tobacco yield estimation and the recommended research in Zimbabwe
Swotwa, Ezekia; Masuka, Anxious; Maasdorp, Barbara; Murwira, Amon; Shamudzarira, Munyaradzi (Hindawi, 2013-10)Tobacco crop area and yield forecasts are important in stabilizing tobacco prices at the auction floors. Tobacco yield estimation in Zimbabwe is currently based on statistical surveys and ground-based field reports.These ... -
Selection of optimum vegetative indices for the assessment of tobacco float seedlings response to fertilizer management
Swotwa, Ezekia; Maasdorp, Barbara; Murwira, Amon; Masuka, Anxious (Hindawi, 2012-05-21)The experiment sought to establish the vegetative indices for assessing tobacco float seedling varieties’ response to different fertilizer rates. A factorial design, with 3 variety × 4 fertilizer management treatments, ... -
The Spatial Distribution of Elephants (loxodonta Africana) in Relation to the Spatial Heterogeneity of Vegetation Cover in a Southern African Agricultural Landscape
Murwira, Amon; Skidmore, Andrew K. (2006-02-15)We tested whether and how the probability of African elephant (Loxodonta Africana) presence was related to spatial heterogeneity of vegetation cover and in the agricultural landscape of the Sebungwe region in northwestern ... -
Spectral indices: In-season dry mass and yield relationship of flue-cured tobacco under different planting dates and fertiliser levels
Svotwa, Ezekia; Masuka, Anxious; Maasdorp, Barbara; Murwira, Amon (Hindawi, 2013-08-13)This experiment investigated the relationship between tobacco canopy spectral characteristics and tobacco biomass. A completely randomized design, with plantings on the 15th of September, October, November, and December, ...