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 the garden or the farms. Sometimes 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 or having the soil tested may be recommended to improve the yield and protect the crops.
What would happen if the experiment was repeated using different types of plants like bamboo or beans?
The experiment can be repeated 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
Some fertilizers react to solvents - perform the experiment in a well ventilated place and add the fertilizer slowly.