| Type of Document |
Master's Thesis |
| Author |
Childress, Michael Blanton
|
| Author's Email Address |
childrem@vt.edu |
| URN |
etd-05162011-215940 |
| Title |
Evaluating an Advanced Intensive Management Strategy for Virginia Wheat |
| Degree |
Master of Science |
| Department |
Crop and Soil Environmental Sciences |
| Advisory Committee |
| Advisor Name |
Title |
| Thomason, Wade E. |
Committee Chair |
| Alley, Marcus M. |
Committee Member |
| Griffey, Carl A. |
Committee Member |
| Parrish, David J. |
Committee Member |
|
| Keywords |
- Winter wheat
- Management
- Nitrogen
- Seeding rate
|
| Date of Defense |
2011-04-29 |
| Availability |
unrestricted |
Abstract
Current Virginia soft red winter wheat (Triticum aestivum L.) management strategies have been in place for over 20 years. A new advanced intensive management (AIM) system has been evaluated in order to improve Virginia wheat yields and attempt to bring state average wheat yields of 4288 kg ha-1 more closely in-line with the maximum yield achieved in the Virginia Tech Official Soft Red Winter Wheat Trials of 7400 kg ha-1. Increases in nitrogen (N) fertilizer application rates and splits, a chelated micronutrient blend, increased seeding rates, and a “no tolerance” pest control methodology were compared to current intensive management practices in this study. Additional fall N application and an increased seeding rate resulted in an increased number of tillers m-2 at growth stage (GS) 25 and biomass at GS 30. This increased number of tillers may lead to a greater amount of viable grain head production and increased wheat yields. Higher seeding and N application rate resulted in dramatically increased lodging in 2009 with resultant yield loss. Grain yield was significantly affected by management type in three of six instances. The number of heads m-2 was the yield component factor most influenced by factors tested in these studies.
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| Files |
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Size |
Approximate Download Time
(Hours:Minutes:Seconds)
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56K Modem |
ISDN (64 Kb) |
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Childress_MB_T_2011.pdf |
944.88 Kb |
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