Assessing the Spectral Separability of Flue Cured Tobacco Varieties Established on Different Planting Dates and under Varying Fertilizer Management Levels
Joint Authors
Masuka, Anxious J.
Murwira, Amon
Maasdorp, Barbara
Svotwa, Ezekia
Source
International Journal of Agronomy
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
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 December, as main plots, variety as subplot, and fertilizer treatments as sub-subplots was used.
Radiometric measurements were taken from 5 m × 5 m sampling plots, using a multispectral radiometer.
The September, October, and November crops had significant variety x fertilizer treatment differences (F<0.05) from the age of 10 weeks.
T 66 and KRK26 varieties had similar (F>0.05) NDVI values and these were greater (F<0.5) than those for K E1.
The 100% and the 150% fertilizer treatments were similar (F>0.05) and both were greater (F<0.05) than the 50% fertilizer treatments.
All of the fertilizer and variety treatments at the December planting dates had similar reflectance characteristics (P>0.05), which were lower (P<0.05) than the September and October planting dates.
The results showed that planting dates, varieties, and fertilizer levels could be distinguished using spectral data.
Weeks 10-11 and 15 after the start of the experiment were optimal for separating the planting date effect.
American Psychological Association (APA)
Svotwa, Ezekia& Masuka, Anxious J.& Maasdorp, Barbara& Murwira, Amon. 2014. Assessing the Spectral Separability of Flue Cured Tobacco Varieties Established on Different Planting Dates and under Varying Fertilizer Management Levels. International Journal of Agronomy،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-455564
Modern Language Association (MLA)
Svotwa, Ezekia…[et al.]. Assessing the Spectral Separability of Flue Cured Tobacco Varieties Established on Different Planting Dates and under Varying Fertilizer Management Levels. International Journal of Agronomy No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-455564
American Medical Association (AMA)
Svotwa, Ezekia& Masuka, Anxious J.& Maasdorp, Barbara& Murwira, Amon. Assessing the Spectral Separability of Flue Cured Tobacco Varieties Established on Different Planting Dates and under Varying Fertilizer Management Levels. International Journal of Agronomy. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-455564
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-455564