To find the level of phosphorus in our soil, first we mixed the Phosphorus extracting solution with 1.5 grams of soil for one minute. Next, we allowed the soil to settle. After it was setttled, we took the liquid from the top and put it in another test tube with phosphorus indicator reagent. Next we added a phosphorus test tablet and shookthe solution until it dissolved. The solution turned a dark blue color, indicating that phosphorus levels are high. Beause phosphorus is often included in fertilizers, high phosphorus levels are ideal for plants. This is proven with our soil because the plants growing in it were numerous and healthy.
 |
| Chart showing phosphorus levels |
 |
| Finished Solution |
No comments:
Post a Comment