When rapeseed oil residue is used as fertilizer, be careful not to let the oil residue contact crops to prevent seedling burning, and ensure a certain distance when using it.
When bean dregs are fermented as fertilizer, they can be mixed with soil for fermentation, mixed with soil, added into the container layer by layer, and then sealed for fermentation, and can be used in about 3 months.
Ferment the bean dregs into liquid fertilizer in a bottle, boil the bean dregs with water, pour them into a container, seal and ferment for 3 months, and use them without peculiar smell. When using liquid fertilizer, it can be diluted with 20 parts of water before application.
The bean dregs and coffee dregs were mixed and fermented, and the coffee dregs and bean dregs were mixed according to the ratio of 1: 1, and then sealed and fermented for 3 months. This method will not produce odor when bean dregs are fermented. Break up the oil residue, prepare livestock and other excreta and starter, and dig two rectangular pits in the open space, about one meter deep.
First, pour a part of oil residue, then a proper amount of poultry manure, then add a small amount of starter, then pour some oil residue, poultry manure and starter, then pour some straw or wheat straw, and finally pour a proper amount of water.
After 3 days of fermentation, it is necessary to turn over and ventilate. The specific operation is to shovel the oil residue in this pit into another pit and then cover it with straw.
When the fertilizer is used, it can be mixed with water in a certain proportion. For example, the remaining rapeseed oil residue is crushed and mixed with water, then stirred into a paste and put into a container. Finally, the decomposed solution is taken out and mixed with clean water.