As for using beer on the lawn, I read an Internet post that recommended mixing baby shampoo, ammonia, beer and some corn syrup in a 20-gallon hose end sprayer. The ammonia serves as nitrogen source, the beer and corn syrup as fertilizer, and the shampoo as a surfactant to reduce water repellency — supposedly.Click to see full answer. Hereof, is beer a good fertilizer for grass?Beer. Made from barley and hops, beer is a fantastic source of energy for your lawn. Rich in carbohydrates, beer provides an immediate source of energy for microbes in the soil, which then release energy for the grass to use.Subsequently, question is, does beer make your grass green? Green up your lawn in no time Professional gardeners suggest pouring beer (just enough to wet the grass) on discolored areas. The brew’s acids kill fungus, while its fermented sugars feed the grass to stimulate healthy growth. Keeping this in view, how do you fertilize your lawn naturally? Epsom Salt & Ammonia Mix one cup each of Epsom salts and ammonia in a bottle. Add two-three tablespoons of this mixture in a watering can and spread it over 200 square feet of grass. Alternatively, you can mix it with equal parts water to make a liquid fertilizer for covering your entire lawn.Can I put beer on my plants?Use a small amount of a flat beer just at the base of the plant. If you have a house with some roommates, and your yard is prone to ugly brown patches, you can pour flat beer on that too. The acids in beer kill off fungi and pests, and the fermented sugars feed the grass.