Why the debate over urea and non-urea based nitrogen?
What it really comes down to is cost. If urea based and non-urea based nitrogen cost the same abount, there would probably be no debate. Most people would probably just use non-urea based fertilizers. However, urea is a bi-product of a chemical manufacturing process, and so urea is abundant and available at a very low cost. This makes urea derived nitrogen fertilizer relatively inexpensive to produce, compared to fertilizers derived from more costly non-urea based chemical components. Ultimately, you will have decide for yourself, whether or not the added expense of non-urea based fertilizer is justified. ESSENTIAL TRACE ELEMENTS: In addition to the primary 3 chemical components which I have listed above, some fertilizers contain additinal micronutrients and other essential trace elements. While the role of these trace elements is not as clearly defined as the role of nitrogen, phosphorus and potash, the presence of these trace elements could have a beneficial effect on your plants. It
