Row By Row Garden Show

We have a very special guest on the show, Dr. Glen Harris of the University of Georgia. Glen specializes in Environmental Soil & Fertilizers. Tonight, Greg and Glen do a deep dive into what exactly is in fertilizers. It's time to plant cool weather cover crops and short maturing greens (Mustard, Turnips, Kohlrabi, and Spinach). What's In Fertilizer? Fertilizer Labels A generic label in most garden centers uses 13-13-13. With any and all labels, the first number you see on a fertilizer label is for Nitrogen, the second number is phosphorous, and the third is Potassium. (N, P, K) Glen states that the numbers on these labels are all the same around the world! For it to be a "complete fertilizer" it will need to also include micronutrients as the secondary, such as calcium, magnesium, sulfur, and iron (to name a few). Nitrogen Ammoniacal Nitrogen (NH3-N) is nitrogen derived from ammonia. One form of nitrogen that your plants regularly use. Most commonly found in the soil is ammonium. It is natur