Finally someone asks this question! "It's organic don't panic, it's synthetic don't buy it"...sigh. Hey, I am a licensed commercial pesticide applicator. Fertilizer is NOT pesticide. Chemicals are everything including us...we are bags of chemicals and chemistry.
The difference between 'organic' nitrogen and 'synthetic' nitrogen is absolutely nothing. A nitrogen atom is a nitrogen atom is a nitrogen atom. This is an arena we all need to be discussing in a very big way!!
Problems with fertilizer include; fillers, the production of fertilizer is a big problem and the incorrect application of fertilizers can be a problem but the products are not a problem at all.
The production of phosphorus produces a by product called fluoride. Extremely extremely toxic and guess what, YOU are drinking when you turn on the faucet to drink city water? Fluoride. And it has never ever been shown to do a dang thing for teeth. And we worry about putting chemicals in the soil plants have to have to do photosynthesis to grow our food?
This is a very big deal and an important concept! Fertilizer is not harming our soils. Adding fertilizer to soil to grow plants is as important as water, drainage and sunlight. Compost is NOT fertilizer, should not be used as fertilizer. It is not balanced.
This is the list of CRITICAL chemicals plant have to have to make their own food and ours as well; Nitrogen, Phosphorus, Potassium, Boron, Calcium, Magnesium, Molybdenum, Iron, Sulfur, Manganese, Zinc, Vanadium, Sodium, Silicon, Selenium, Nickel, Copper, Chlorine, Cobalt, these are all ELEMENTS. I guess this makes them NON Organic...? Think about this! These chemicals are elements absolutely necessary to plants to be able to do their incredible act of photosynthesis!! Compost has maybe one or two of these elements. Compost if it is decomposed FEEDS the soil organisms! When we grow crops, gardens, heck plants in pots these are artificial systems! We humans have to add and monitor these chemicals. Throwing compost on the soil is NOT a fertilizer program.
In any ecosystem these chemicals are NOT found in the soil but for a brief time...they are in the biomass. This is why when the rain forests are chopped down that soil might have a little chemistry to grow crops for a short time but otherwise that soil is useless for growing artificial crops!
I hate the terms, 'organic', 'natural', 'nutrients' because these terms don't mean a thing anymore. They are used to sell products and are used so loosely as to become worthless.