China planted 78 billion trees but it had an unintended effect on the country's water Futura Sciences Jewelry Spot Welder CNC Pulse Argon Arc Welding Machine 12 homemade fertilizers for plants that you can easily find at home 1. Banana Peel Fertilizer Nutrients: Potassium, phosphorus, calcium. Chop and bury banana peels in the soil or steep them in Persicaria chinensis (Chinese knotweed) CABI Compendium