A team of chemists and agriculture specialists has developed a way to transform urea in wastewater, into percarbamide, which can be used as a fertilizer. In their paper published in the journal Nature ...
Milorganite and EcoScraps Slow-Release Fertilizer are worth ... preventer and broadleaf weed killer. A great example is Greenview's Spring Fertilizer Weed & Feed with Crabgrass Preventer.