When you are starting a backyard garden, the matter of using fertilizers on your plants will definitely come up. After all, fertilizers boost plant growth that, in turn, can provide your kitchen table and living room table with delicious vegetables and beautiful flowers, respectively. You must, however, take extra care in choosing the type of fertilizer, either synthetic or natural, that you use since both have environmental implications.
Synthetic Fertilizers
Most commercially available all-purpose synthetic fertilizers contain the so-called “big three” – nitrogen, phosphate/phosphorus and potassium. Other ingredients include calcium, iron, magnesium, and other trace elements but the big three have greater environmental impact due to their relatively large quantities.
• Nitrogen is necessary for foliage growth but its production process, specifically the Haber-Bosch process, requires plenty of natural gas. The more natural gas used, the greater the strain on Earth’s natural resources.
• Phosphate or phosphorous in synthetic fertilizers promotes flower and root development but at the expense of rapid depletion of the world’s phosphorus deposits. Also, the excess phosphorus in the soil contaminates waterways that stimulate phytoplankton and algae growth. This, in turn, lead to adverse effects on aquatic ecosystems.
• Potassium is needed for plants’ overall health. It has its uses in ...