How Effective Are Polymers in Keeping Pre-Emergent Active in Soil?

Overview

Objectives/Goals The goal was to see if the polymers would help make the Pre-Emergent become more active and last longer. Methods/Materials I put potting soil into nine flats. Then I mixed polymer with water. The polymer was then put into Group C potting soil. I mixed one teaspoon of pre-emergent into 1 gallon of water. That was put into a 16 once spray bottle. 8 onces was sprayed into both Group B and C. After two months, I planted ryegrass seeds into Group A,B,and C. I sprayed water once a day until germination occured. Results Results showed that it took 3 days for Group A (potting soil only) to germinate. It took 7 days for Group B (potting soil and pre-emergent) to germinate. It took 13 days for Group C (potting soil,polymer,and pre-emergent) to germinate. The grass of Group A would make a perfect lawn because it was really green and tall. The grass of Group B was very scarce. Group C barely had any grass at all. The grass was very sick looking and it had a yellow and brownish color. Conclusions/Discussion The pre-emergent and polymer had the greatest effect on Group C. My hypothesis was corrrect. My hypothesis stated that Group A would have the most growth and Group C would have the least amount of growth. This project would help get a healthier environment and less manual labor.

Competition history

• CSEF 2002 Plant Biology · Entry J1626

Resources

• CSEF project summary ↗

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