In the control group, it was shown that, on average, peanut plants grew up to 1.69 inches and had an average leaf area of ​​3.166 cm^ 2. aluminum sulfate investigation, calculated data shows that plants watered with a pH of 2.5 grew the least in height (1.992 inches) and leaf area (3.81 cm^2), followed by plants watered with a pH of 3.5 (2.375 inches and 4.67 cm^2). Plants given water with a pH of 4.5 grew the most with an average height of 2.81 inches and leaf area of ​​5.48 cm^2. For nitrogen groups, average height and leaf area are maximum at 75 ml (3.69 inches and 7.8 cm^2), at least at 100 ml (2.35 inches and 4.49 cm^2) , with 50 ml at 2.86 inches and 5.83 cm^2. In the phosphorus survey, data indicates that average height and leaf area are maximum at 64 pounds A/6" of soil (3.125 inches and 6.433 cm^2), at least 8 pounds A/6" of soil ( 2.125 inches and 4.12 cm^2), with 20 pounds A/6" of soil at 2.59 inches and 5.05 cm^2.Interpretation:In While investigating aluminum sulfate, it was interesting to see the clear differences in growth, although the pH was altered by one level. The farther the pH was from 7 (neutral), the less the peanut plants grew only grown to a height of 1.9, graph 1 still shows that acidic pHs negatively affect peanut plants. This is accurate, because the aluminum sulfate group peanut plants started the experiment at a height. height of 3 inches and the neutral group started as sprouts. The decrease indicates that acid rain, consisting specifically of aluminum sulfate, has a negative effect on the growth of peanut plants. Perhaps this is due to the leaching of essential plant nutrients. The significant difference between the average height and... the middle of the card... approx. April 28, 2011. .Ojima, D.S., T.G.F. Kittel, T. Rosswall, and B.H. Walker. “Critical Issues for Understanding the Effects of Global Change on Earth's Ecosystems.” JSTOR. Ecological Society of America, August 1991. August 3, 2011. Ownby, James D., and Lyndon Dees. “Growth and mineral nutrient status in peanuts and sorghum in response to acid precipitation and aluminum.” JSTOR. Blackwell Publishing. April 28, 2011. "Peanuts | UGA Cooperative Extension." University of Georgia Cooperative Extension. University of Georgia, 2011. August 3, 2011. Winner, William E. “Mechanistic Analysis of Plant Responses to Air Pollution.” JSTOR. Ecological Society of America. April 29. 2011. .