Relier Pairs FetilizersVersion en ligne Reading about fertilizers par Phuong Xuan Pham 1 Nitrogen 2 Too much nitrogen 3 A lack of phosphorous 4 Too much foliage caused by the excess amount of nitrogen 5 Potassium 6 Too much phosphorous 7 Chlorophyll 8 Phosphorous provides materials for the transport of energy within an organism. provides plants with nutrients needed to form proteins, sugars, and starches. Is used to produce chlorophyll Can produce an excess of foliage leads to slow plant growth. Allows plants to absorb light and turn it into energy Can hinder the growth of fruit or vegetables can easily upset the chemical balance in aquatic environments.