Effects of soil temperature gradient on growth and carbohydrate and nutrient element levels in three warm-season turfgrasses. effectsofsoiltem00seit Year: 1974 42 Figure 15. St. Augustinegrass plugs and roots after seven weeks growth on soil temperature gradient apparatus. Treatment was 45°C, grading to 11°C at treatment 9.
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Photo credit: © Bookend / Alamy / Afripics
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