Plant Growth in Aquaponic System through Comparison of Different ...

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height (cm) 14 12 10 8 6 4 2 Grav el Fiber 0 1 2 3 4 5 time (weeks) Figure 6- Growth rates of radishes in floating raft system over the experimental time period in each medium type. (fix fiber, gray scale-add color or different symbols, add points at each week, error bars) Radish Growth Rate in the NFT The average radish heights in the NFT were plotted for each week for a total of 8 weeks (Figure 7). In the NFT, soil showed the greatest growth. There was a continual growth for the first 7 weeks and then a drop the final week. Radish growth in coconut fiber and gravel was not as great as in soil. The radishes in the fiber had a negative growth and radishes in the gravel had a spike in growth in the 3 rd week, but then a drop for the remainder of the experimental time. (Did the plants shrink )
height (cm) height (cm) 25 20 15 10 5 0 1 2 3 4 5 6 7 8 time (weeks) Gravel Fiber Soil Figure 7- Radishes grown in NFT system over the experimental time period in each medium type. Lettuce Growth Rate in the Floating Raft Points were plotted on a line graph for the average height of lettuce plants in each treatment in the floating raft for each week (Figure 8). Each media followed a similar growth trend, however, soil had the greatest overall growth, followed by gravel, and then fiber. Lettuces averaged 7.34 cm in height (STAND DEV) in the soil, 6.52 cm in height (STAND DEV) in the gravel, and 5.7 cm in height (STAND DEV) in the fiber at the end of the experiment. 8 7 6 5 4 3 2 1 0 1 2 3 4 5 time (weeks) Gravel Fiber Soil
Page 1 and 2: Plant Growth in Aquaponic System th
Page 3 and 4: minimizing nutrient inputs and the
Page 5 and 6: There are many different medias in
Page 7 and 8: Figure 4 - Lettuce plant grown in t
Page 9 and 10: number that corresponded to a pot o
Page 11: of this time difference, because it
Page 15 and 16: Table 1- Average biomass for radish
Page 17 and 18: along with plants grown in gravel a
Page 19 and 20: soil and lettuce grown in coconut f
Page 21 and 22: into the water, providing the plant
Page 23: References Denckia, T.L.K. (2003).

Plant Growth in Aquaponic System through Comparison of Different ...

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