Ammonia has a high concentration of nitrogen, which can affect nutrient levels when applied to the soil. ... However, household ammonia is a caustic agent formulated for deep cleaning. This means it's highly corrosive, and when applied neat to garden weeds, is more likely to kill grass and other plants than to fertilize.

Can I spray ammonia on my lawn?

Ammonia (Nh3) is comprised of nitrogen, the stuff that lawns crave. Often applied as ammonium nitrate or urea, household ammonia can also be used to obtain the same results. Add 1 cup of ammonia to a 1-gallon container. ... Turn on the water, and apply the ammonia fertilizer to your entire lawn early in the morning.

Is household ammonia good for grass?

Ammonia provides a readily available source of nitrogen, a necessary nutrient for grasses to develop a healthy green color and produce new growth.