Ammonia Will Kill Plants, But Ammonium and Urea Are Major Sources Of Nitrogen In Agriculture
Plants depend on nitrogen for chlorophyll, proteins, energy, and amino acids. Nitrogen boosts plant vegetative growth and has the highest concentration out of all other than carbon, hydrogen, and oxygen.
Too Much Nitrogen, In General, Will Not Kill Plants But Cause Tip Burns For Your Plants
Tip burn is one of the most common symptoms of having too much nutrients in the system. According to the University of Massachusetts, tip burn in leafy vegetables is caused by too much nitrogen contributing to larger leaves.
With the multiple steps needed for converting urea into ammonia, ammonium, nitrite, and finally nitrates, agricultural applications will lose a lot of the nitrogen to runoff if plants do not utilize the nitrogen immediately.
Urea Is Generally A Slow-release Fertilizer Which Incur A Lot Of Loss Of Nitrogen To Volatilization