Timing of micro-rate herbicide applications by growing degree days
Trevor Dale, Graduate Research Assistant
Karen Renner
Crop & Soil Sciences
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Figure1. Growing degree day formula used in micro-rate timing study. |
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Figure 2. Sugar beet injury combined over plantings in 2002. |
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Figure 3. Micro-rate timing schedule for the early April planting date in 2002. The X denotes the date of planting and each arrow signifies a micro-rate application. |
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Figure 4. Total micro-rate applications for all treatments at the various planting dates in 2001 NS 2002. Sugar beets were planted in 30" rows and were not cultivated. |
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Figure 5. Common lambsquarters control combined over plantings in 2002. |
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Figure 6. Redroot pigweed and Powell amaranth control combined over plantings in 2002. |
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Figure 7. Sugar beet yield combined over plantings in 2002. |