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Topics  > Biology > Botany

Effect of fertilizer on plant growthFeatured science projectScience project video


The hypothesis that watering  plants with  too little  or too much fertilizer will slow down  plant growth, is proven to be true.

Using the correct amounts of fertilizer is important to optimize the yield of our gardens and farms. The continual use of fertilizer will cause nutrients and salt to accumulate in the soil over a period of time. Therefore, using fertilizers once a week instead of daily and having the soil tested regularly for excess fertilizers, is recommended in order to improve the yield and to protect crops.

Also consider

This science fair project may be repeated, this time, with science fair different types of plants like bamboo or beans.

Modify the science project experiment, using different brands of fertilizer.


A great alternative to chemical fertilizers – Hasta Gro organic food plant -

How do the amounts of fertilizer affect plant growth? -

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Complexity level:
Project cost ($):
Time required:
1 day to prepare, 10 days for the science project experiment
Material availability:
Easily found at a plant nursery
Safety concerns:

Basic safety requirements