Degree-days as a tool in decision making and crop monitoring
The objective of this study was to demonstrate how degree-days can be used in decision making and crop monitoring. The results obtained include monthly mean degree-days total, cumulative monthly degree-days , mean annual cumulative degree-day map and graphs, mean monthly temperature graphs for selec...
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Midlands State University
2015
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| Online Access: | http://hdl.handle.net/11408/560 |
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| author | Shoko, Kampion |
| author_facet | Shoko, Kampion |
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| description | The objective of this study was to demonstrate how degree-days can be used in decision making and crop monitoring. The results obtained include monthly mean degree-days total, cumulative monthly degree-days , mean annual cumulative degree-day map and graphs, mean monthly temperature graphs for selected stations and the Beitbridge example that illustrates the use of degree-days as a decision making tool in agriculture. The cumulative degree-day map shows the magnitude and temporal distribution
of heat units for Zimbabwe. The graphs show high values of degree-days in the low lying areas decreasing with altitude. Near zero values are found over the Eastern Highlands. This means that for base temperature 18 ° C, temperate crops are unsuitable for this area. Values of 2000 and more degree-days in the low lying areas mean that tropical crops can be grown in these areas all year round. The middle and high velds can only support tropical crops in the summer season. The map drawn goes further to confirm this
trend. The example graph for Beitbridge illustrates how to determine dates for attainment of critical phenological stages and harvesting using degree-days where warmth is the only limiting factor. |
| format | Article |
| id | ir-11408-560 |
| institution | My University |
| language | English |
| publishDate | 2015 |
| publisher | Midlands State University |
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| spelling | ir-11408-5602022-06-27T13:49:06Z Degree-days as a tool in decision making and crop monitoring Shoko, Kampion Decision making Crop monitoring The objective of this study was to demonstrate how degree-days can be used in decision making and crop monitoring. The results obtained include monthly mean degree-days total, cumulative monthly degree-days , mean annual cumulative degree-day map and graphs, mean monthly temperature graphs for selected stations and the Beitbridge example that illustrates the use of degree-days as a decision making tool in agriculture. The cumulative degree-day map shows the magnitude and temporal distribution of heat units for Zimbabwe. The graphs show high values of degree-days in the low lying areas decreasing with altitude. Near zero values are found over the Eastern Highlands. This means that for base temperature 18 ° C, temperate crops are unsuitable for this area. Values of 2000 and more degree-days in the low lying areas mean that tropical crops can be grown in these areas all year round. The middle and high velds can only support tropical crops in the summer season. The map drawn goes further to confirm this trend. The example graph for Beitbridge illustrates how to determine dates for attainment of critical phenological stages and harvesting using degree-days where warmth is the only limiting factor. 2015-03-13T13:54:45Z 2015-03-13T13:54:45Z 2006 Article 1815-9036 http://hdl.handle.net/11408/560 en The Dyke;Vol.2;No.2.2 p. 15-32 open Midlands State University |
| spellingShingle | Decision making Crop monitoring Shoko, Kampion Degree-days as a tool in decision making and crop monitoring |
| title | Degree-days as a tool in decision making and crop monitoring |
| title_full | Degree-days as a tool in decision making and crop monitoring |
| title_fullStr | Degree-days as a tool in decision making and crop monitoring |
| title_full_unstemmed | Degree-days as a tool in decision making and crop monitoring |
| title_short | Degree-days as a tool in decision making and crop monitoring |
| title_sort | degree-days as a tool in decision making and crop monitoring |
| topic | Decision making Crop monitoring |
| url | http://hdl.handle.net/11408/560 |
| work_keys_str_mv | AT shokokampion degreedaysasatoolindecisionmakingandcropmonitoring |