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Monthly Degree Day by Month Accumulation of Degree Days each month. Total GDD accumulation for Corvallis was 2702, Klamath Falls was 2672, and Madras was 2770 during the course of this trial in 2015.

Monthly Degree Day by Month Accumulation of Degree Days each month. Total GDD accumulation for Corvallis was 2702, Klamath Falls was 2672, and Madras was 2770 during the course of this trial in 2015.

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Algae can be used in a variety of wastewater systems to capture nutrients while fixing carbon dioxide from the atmosphere. I conducted field trials at three locations in Oregon with both corn and potato crops to assess the agronomic value and environmental impact of using the resulting algal biomass as a fertilizer. I compared the performance of al...

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Context 1
... differences impact timing, intensity, and availability of irrigation, length of the growing season, and the impact of climate on the soil development. While, accumulation of growing degree days (Figure 2-1) using the minimum 50 system, shows similar patterns among sites, the soil temperature at 10 cm ( Figure 2-2) is considerably different and important for differences related to microbial activity and mineralization rates. ...
Context 2
... were no differences in NO3 --N levels among the low-rate treatments. Medium-rate treatments resulted in significantly higher NO3 --N levels than 0N, but there were no differences among treatments that received fertilizer (Appendix Figures 10, 11, and 12). For reference the US EPA's drinking water maximum contamination level of 10 mg kg -1 NO3 --N ( Derby et al., 2009). ...