Effect of fertilizer on plant growth
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.
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 - http://www.epinions.com/review/Hasta_Gro_POrganic_Plant_Food_Gallon/content_44027628436
How do the amounts of fertilizer affect plant growth? - http://www.madsci.org/posts/archives/2002-04/1019088560.Bt.r.html
Basic safety requirements