The effect of spent coffee grounds on the growth rate and dry mass of Fragaria vesca plant
School Name
Spring Valley High School
Grade Level
10th Grade
Presentation Topic
Botany
Presentation Type
Non-Mentored
Oral Presentation Award
2nd Place
Abstract
To test spent coffee grounds as a natural alternative to the harmful chemical fertilizers used by farmers on large crop fields was this purpose of this experiment. There are many negative effects of the excessive amounts of chemicals and pesticides used on plants directly, as well as its surrounding environment, including the farmers who interact with them. SCG is beneficial because of its caffeine, phosphorus, and nitrogen contents. Phosphorus and nitrogen are helpful nutrients that are found within SCG. Caffeine helps quicken the growth process, but only to a certain extent. It was hypothesized that the 8% SCG group would produce the greatest dry mass and fastest growth rate. The plant fertilized in this study was Fragaria vesca, which were grown from seeds for six weeks in five experimental groups. After six weeks, the sprouts were uprooted and air dried. Proceeding that, the average dry masses were found and the growth rates were calculated. After experimentation, it was found that the 4% SCG group had the highest average and growth rate, which may be due to measurement errors. An ANOVA test was done, showing that a main effect of SCG levels was found. Significant differences were found between the 4% group (M= 128.5, SD= 13.4) and its two closest groups, 2% (M=31.1, SD=6.8) and 6% (M=98.9, SD=37.4). It can still be concluded that the SCG was beneficial because all averages were higher than the control.
Recommended Citation
Gray, Briana, "The effect of spent coffee grounds on the growth rate and dry mass of Fragaria vesca plant" (2018). South Carolina Junior Academy of Science. 142.
https://scholarexchange.furman.edu/scjas/2018/all/142
Location
Neville 105
Start Date
4-14-2018 9:15 AM
Presentation Format
Oral and Written
The effect of spent coffee grounds on the growth rate and dry mass of Fragaria vesca plant
Neville 105
To test spent coffee grounds as a natural alternative to the harmful chemical fertilizers used by farmers on large crop fields was this purpose of this experiment. There are many negative effects of the excessive amounts of chemicals and pesticides used on plants directly, as well as its surrounding environment, including the farmers who interact with them. SCG is beneficial because of its caffeine, phosphorus, and nitrogen contents. Phosphorus and nitrogen are helpful nutrients that are found within SCG. Caffeine helps quicken the growth process, but only to a certain extent. It was hypothesized that the 8% SCG group would produce the greatest dry mass and fastest growth rate. The plant fertilized in this study was Fragaria vesca, which were grown from seeds for six weeks in five experimental groups. After six weeks, the sprouts were uprooted and air dried. Proceeding that, the average dry masses were found and the growth rates were calculated. After experimentation, it was found that the 4% SCG group had the highest average and growth rate, which may be due to measurement errors. An ANOVA test was done, showing that a main effect of SCG levels was found. Significant differences were found between the 4% group (M= 128.5, SD= 13.4) and its two closest groups, 2% (M=31.1, SD=6.8) and 6% (M=98.9, SD=37.4). It can still be concluded that the SCG was beneficial because all averages were higher than the control.
