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Which mulch keeps moisture in the soil the best? Hypothesis:The peat mulch will hold the most moisture when placed underneath the light because when other surveys were done peat was the best out of all the other mulches. Procedure:
Method of Testing: Take 15” x 10 ½” x 4 ½” pans and fill them with
1500 grams of potting soil, 200 grams of water, and 1” high of a
different mulch in each pan. Then add 200 grams of water
again, and weigh the pans. Put them underneath a 125-watt heat
lamp for three days. Weigh the pans every day for three days.
Whatever one retained the most water was the best mulch.
The Hammer Mill mulch was the most effective in preventing water loss. My hypothesis was wrong. Hammer Mill was the best out of all the mulches. I think Hammer Mill was the best because the wood pieces are flat and there would be more of the wood pieces, and it would be harder for the water to evaporate. I think I was wrong because peat is supposed to be moist when placed on the ground. Since peat would be already moist it would have a lot more water to lose. I do not understand how redstone and marble chips would not prevent the same amount of water from evaporating since they are about the same size and both are stones. Biblical Application:Luke 8:6 "And other seed fell on rocky soil, and as soon as it grew up, it withered away because it had no moisture." Mulch helps to retain moisture so the plants do not wither away. We should memorize God's Word and it will help us in every day life to fight away the temptations. Memorizing the Bible and remembering it is like adding water to the soil with mulch on it. Just as the mulch holds the water in the ground, we should hold the Word of God in our heart so we do not forget it. |
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300 Cromwell Street, Phillipsburg, New Jersey 08865 |
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1st Place, 6th Physical Science, PCA Science Fair