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By Jamie King, James Needham, Curtis Williams, Sam Parsons and Saul Ashbridge.

Feed The World. P.E.S.T. Professional Economics & S cience Team. By Jamie King, James Needham, Curtis Williams, Sam Parsons and Saul Ashbridge. Introduction:. How different concentrations of fertilisers affect plant growth and crop yield. Why is nitrogen important in plant growth .

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By Jamie King, James Needham, Curtis Williams, Sam Parsons and Saul Ashbridge.

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  1. Feed The World P.E.S.T Professional Economics & Science Team By Jamie King, James Needham, Curtis Williams, Sam Parsons and Saul Ashbridge.

  2. Introduction: • How different concentrations of fertilisers affect plant growth and crop yield. • Why is nitrogen important in plant growth. • Comparison of commercial fertilizers with in-house prepared fertilizer.

  3. Aims: • Research the effect of nitrogen on plant life and growth. • Educate farmers about the commercial use of nitrogen fertilizers. • Investigate the feasibility of producing in-house fertilizers. • Educate the people on how to use these findings and methods to help feed the world. • Primarily, Feed The World!

  4. Preparations: • Plant type used. • Quantity of plants used. • Experimental test conditions. • Measurement of fertilizer performance. • Timescale of data collection and data display. • Fertilizer concentrations investigated.

  5. Method 1 – Commercial Fertilizers • Grow broad bean plants for 2-3 weeks. • Select the three most similar plants from crop produced. • Add different concentrations of nitrogen to two of the plants, and distilled water to the other. • Leave the plants to grow for 2-3 weeks, topping them up with water when required. • Measure plant height every five days.

  6. Method 2 – In house prepared fertilizers • 1M ammonia solution was titrated with 1M nitric acid to yield an 8% ammonium nitrate solution. • This solution was split into three portions. • Two portions were diluted to yield 4% and 2% solutions. • These solutions were tested on broad bean plants as described in method 1.

  7. The Results– Method 1 Height of plant in mm Time in weeks This graph shows the final height of each plant, the 4% Nitrogen fertiliser and the 6% Nitrogen fertiliser didn’t produce results as they had died.

  8. The Results – Method 2 After 3 days of growth in the three concentrations of the in-house prepared fertilizers the experiments were deemed complete due to all three plants dying.

  9. Conclusions: • Fertilizer concentration is important when optimizing plant growth. • Distilled water alone can help plant growth, however growth is stunted. • The use of a soil free medium may have a negative effect on plant growth.

  10. Evaluation: • What would we change? • Investigate the use of a soil substitute as a growth medium. • The use of a wider range of fertilizer concentrations. • We would take more frequent recordings.

  11. Thank you for Listening P.E.S.T Professional Economics & Science Team By Saul Ashbridge, Jamie King, James Needham, Sam Parsons, Curtis Williams.

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