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How the Amount of Fertilizer Pellets, in the Soil, Effects the Growth of Wisconsin How the Amount of Fertilizer Pellets, in the Soil, Effects the Growth of Wisconsin Fast Plants By: John Hoffman, Andrew Hendrix, Thomas Finley, and Borya Hahl

How the Experiment was Conducted Planted Wisconsin Fast Plant seeds in each cell n How the Experiment was Conducted Planted Wisconsin Fast Plant seeds in each cell n Used 0, 4, 8, or 16 fertilizer pellets in each cell n Recorded how much the plants grew over a period of 30 days n Pollinated the flowers on the plants n Removed and counted all the seeds and pods n

Controlled Variables #1 - the amount of light (24 hours a day) n #2 Controlled Variables #1 - the amount of light (24 hours a day) n #2 - type of water (tap) n #3 - type of fertilizer pellets (Carolina n-p-k) n #4 - intensity of light (40 watt) n #5 - type of seed (Brassica Rapa) n

Day 0 -13 to day 13 the control group plants grew about 54 mm. Day 0 -13 to day 13 the control group plants grew about 54 mm. Day 13 -15 they grew about 19 mm Day 15 -21 they grew exactly 78 mm. Day 21 -24 the plants grew about 9 mm. Day 24 -28 grew about 23 mm.

Day 0 -13 to day 13 grew a small amount. Day 13 -15 they Day 0 -13 to day 13 grew a small amount. Day 13 -15 they grew a little. Day 15 -21 they grew the most in there lifespan. Day 21 -24 they slowed in growth. Day 24 -28 for cell 1 and 4 he growth almost stopped, but cell 2 and 3 grew a little faster.

Experimental cell one had 10 pods, cell two had 18, cell three had 2, Experimental cell one had 10 pods, cell two had 18, cell three had 2, and four had zero. On average the Controlled group had all between 6 and 5 pods, but the plant in cell 2 died.

The Controlled Group had 101 seeds and the Experiment al group had 131 seeds. The Controlled Group had 101 seeds and the Experiment al group had 131 seeds.

Sources of Error n n n n Snow days, Christmas break, etc. . . Sources of Error n n n n Snow days, Christmas break, etc. . . (low temperatures). The two group of lights looked different. Pollinating plants wrong. Other groups Touching them. Handling the plants too roughly. Watering plants differently. Not enough plants to make accurate conclusions.

Conclusions The plant with 8 fertilizer pellets grew the most n for some reason Conclusions The plant with 8 fertilizer pellets grew the most n for some reason some of the plants “split” into two different stalks n too many fertilizer pellets was our main assumption of why one of our plants died n

Recommendations to Improve Experiment Try to make sure that the lights aren’t different n Recommendations to Improve Experiment Try to make sure that the lights aren’t different n Find a way, to some effect, keep the temperature the close to being same n Buy a portable heater for the room n observe the groups to see if they work well together n