Title

The Effect of Glyphosate Tolerant Soybeans on the pH, Nitrogen, and Phosphorus Levels of the Soil

School Name

Spring Valley High School

Grade Level

10th Grade

Presentation Topic

Botany

Presentation Type

Non-Mentored

Abstract

Genetically modified plants (GM) can have both positive and negative effects on the environment. The purpose of this study was to see how GM plants affect their surrounding environments versus Non GM plants. Soil qualities like pH, N, and P were tested to show whether GM plants affect specific soil nutrients. It was hypothesized that the soil of the GM soybeans would have the same pH, N, and P levels as the soil of conventional soybeans. About 35 mm from the top of the soil, 30 GM soybeans and 30 conventional soybeans were planted in separate plastic pots. After 45 days soil samples were taken near the roots of the plants. Soil test kits were used to determine the specific qualities of the soil. The conventional soybeans (M=6.742, SD=0.362) and glyphosate tolerant soybeans (M=6.708, SD=0.474) did not differ significantly on the pH levels of soil, t(54)=0.31, p=0.756, but the conventional soybeans (M=50.667, SD=29.117) reported higher nitrogen levels in soil than the glyphosate tolerant soybeans (M=27.667, SD=14.547), t(42)=3.87, p<0.001. Like the pH tests, the conventional soybeans (M=15.383, SD=4.063) and the glyphosate tolerant soybeans (M=14.933, SD=3.629) did not differ significantly on the phosphorus levels in soil, t(57)=0.45, p=0.653. GM plants do not have negative effects on soil pH, N, or P levels.

Location

Founders Hall 111 B

Start Date

3-30-2019 10:45 AM

Presentation Format

Oral and Written

Group Project

No

COinS
 
Mar 30th, 10:45 AM

The Effect of Glyphosate Tolerant Soybeans on the pH, Nitrogen, and Phosphorus Levels of the Soil

Founders Hall 111 B

Genetically modified plants (GM) can have both positive and negative effects on the environment. The purpose of this study was to see how GM plants affect their surrounding environments versus Non GM plants. Soil qualities like pH, N, and P were tested to show whether GM plants affect specific soil nutrients. It was hypothesized that the soil of the GM soybeans would have the same pH, N, and P levels as the soil of conventional soybeans. About 35 mm from the top of the soil, 30 GM soybeans and 30 conventional soybeans were planted in separate plastic pots. After 45 days soil samples were taken near the roots of the plants. Soil test kits were used to determine the specific qualities of the soil. The conventional soybeans (M=6.742, SD=0.362) and glyphosate tolerant soybeans (M=6.708, SD=0.474) did not differ significantly on the pH levels of soil, t(54)=0.31, p=0.756, but the conventional soybeans (M=50.667, SD=29.117) reported higher nitrogen levels in soil than the glyphosate tolerant soybeans (M=27.667, SD=14.547), t(42)=3.87, p<0.001. Like the pH tests, the conventional soybeans (M=15.383, SD=4.063) and the glyphosate tolerant soybeans (M=14.933, SD=3.629) did not differ significantly on the phosphorus levels in soil, t(57)=0.45, p=0.653. GM plants do not have negative effects on soil pH, N, or P levels.