How to ferment rapeseed cake into flower fertilizer How to use rapeseed cake as soil fertilizer

Rapeseed cake is the by-product left after people press oil from rapeseed seeds. It gets its name because people often press it into cake shape. Rapeseed cake contains a large amount of protein and multiple amino acids, as well as some crude fiber and minerals. However, rapeseed cake is also somewhat toxic. People rarely eat it and usually ferment it into flower fertilizer. However, some people do not understand its fermentation method. Today, the editor will introduce this knowledge so that everyone can fully understand how rapeseed cake can be made into soil fertilizer.

How to ferment rapeseed cake into flower fertilizer

1. When fermenting rapeseed cake into flower fertilizer at home, you need to prepare a suitable container with a lid and an appropriate amount of flower culture soil. Grind the rapeseed cake prepared at home into fine powder, and then mix it together with the prepared nutrient soil. The amount of nutrient soil should be about three times that of rapeseed cake.

2. After mixing them evenly, put them directly into the prepared container, then water them, use a wooden stick to mix them evenly, then cover the mouth of the container, and store them in the basement or an inconspicuous place outdoors for three to four months. At this time, there will be an obvious reaction between the rapeseed cake and the nutrient soil. Their color will be significantly deepened, and an unpleasant odor will be emitted. In this case, it means that the rapeseed cake has been fermented and can be used directly as flower fertilizer after being taken out.

How to use rapeseed cake as soil fertilizer

1. Rapeseed cake contains a large amount of organic matter, which can provide sufficient nutrition for plant growth. However, it cannot be used directly for plants before fermentation. If you want to make rapeseed cake into soil fertilizer, you must crush it, and the smaller the particles, the better. Then mix it with 3 to 4 times the planting soil, mix well, and then put it in a remote place outdoors and water it thoroughly.

2. Cover the surface of the piled rapeseed cakes with plastic film and compact it with bricks or other hard objects around it to prevent the plastic film from being blown away by the wind. After about three months, the soil inside will turn black, and you can smell an unpleasant odor after opening the plastic cloth. This means that the rapeseed cakes have been fermented and can be used directly as soil fertilizer.