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Grand Award

Third Place
HS-PLT21

Nitrogen VS Phosphorus in Hydroponic Plants

Plant Science
Isabella Duenas

Grade:
11
Teacher:
Mari Echols

Hydroponics, a soilless cultivation method, offers sustainability and precise control over plant nutrients, resulting in higher yields, healthier plants, and year-round farming. It utilizes water-based nutrient solutions to foster growth. This experiment tests whether nitrogen-heavy or phosphorus-heavy nutrient solutions promote greater growth of radish plants in a hydroponic wick system. By directly testing which nutrient is more essential, we can find the ideal nutrient concentrations that provide optimal growth in hydroponics. To test this, I created 15 hydroponic containers out of 2-liter plastic bottles by creating a wick system with cotton strings and filling them with coconut coir as a growing medium for radish seeds. I split the containers into 5 receiving nitrogen-heavy, 5 receiving phosphorus-heavy, and 5 receiving a controlled balanced NPK solution. I predicted that radish plants receiving nitrogen-heavy nutrient solution would exhibit greater growth due to nitrogen's primary role in chlorophyll and amino acids, essential for photosynthesis and protein synthesis. The 12-day experiment supports the hypothesis, demonstrating the superiority of the nitrogen-heavy group in terms of average height, leaf quantity, and root strength. The phosphorus-heavy group had the second highest average heights and the control group had the lowest average heights. Hydroponic cultivation, with its resource efficiency and potential to address global food security and water crises, stands as a promising method for sustainable agriculture that can contribute to a better environment and future for all.


Project presentation

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Research paper

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One thought on “Nitrogen VS Phosphorus in Hydroponic Plants

  1. Congratulations to this accomplishment in SARSEF! Your project “Nitrogen VS Phosphorus in Hydroponic Plants” to answer, “which nutrient is more essential for plant growth and development”; Is a marvelous accomplishment, it is just one step on your journey as a young scientist. You overcame many obstacles and your ability to relentlessly search for solutions to problems as it is the sustainable agriculture that can contribute to a better environment and find innovative ways to improve the future for all in this world is the key to this success and many to come. This experience gives you a chance to explore your dreams of leadership, creativity, and future research. Continuo with your hard work and passion in science for a much better world. Thank you.

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