Can waste oil be used as fertilizer?

Waste oil as fertilizer

Waste oil can be used as fertilizer directly, but the best way to use it is to put it into soil without plants, water it and ferment it for a period of time. Such soil is rich in nutrients and will become very fertile.

Waste oil can be used as flower fertilizer. If it is fermented in the soil before planting plants, the soil can become very fertile without causing harm to the flowers. It can be used as fertilizer for flowers and is suitable for plants such as peonies and jasmine that like to grow in fertile soil.

How to make fertilizer from waste oil

1. Pour into the soil

If waste oil is used in soil with plants, only a little bit can be used each time. In soil without plants, more can be put in and mixed thoroughly as preparation for the next fermentation step.

2. Add water for fermentation

After the waste oil is mixed with the soil, some water is added to allow the oil to fully ferment. After waiting for about a month, the soil becomes fertile soil and the waste oil becomes base fertilizer.

Key points for using waste oil fertilizer

1. Direct use

When waste oil is used directly, the amount used must be strictly controlled. If too much is used, it will easily cause the soil to contain too much oil, forming an oil film at the roots of the plants, making it difficult for them to breathe and leading to death.

2. Fermentation

After waste oil is fermented in soil where no plants are grown, the soil usually becomes very fertile and suitable for growing plants that like fertile soil. If the plants like poor or ordinary soil, try to avoid using it.