Feeding fermentation method: sprinkle manure water on rapeseed cake, or sprinkle phosphorus powder and stir evenly. Note: Phosphorus powder shall not be used. Then cover it with nylon paper, turn it once a week, turn it twice in a row, and ferment it for fifteen days before it can be used and planted under fruit trees. Rapeseed cake is a good organic fertilizer, which is rich in nutrients needed by various plants, such as nitrogen, phosphorus and potassium. The grown vegetables taste good, but it is best to apply them as base fertilizer 7 to 15 days in advance, because its nutrient release is slow, but it is best to buy a starter from an agricultural store and ferment with sawdust or rice husk and a small amount of water according to the instructions.

Break the cake, pour it into the pool, add 3% probiotics, stir well, cover it with plastic wrap, and let the probiotics in the cake grow. Dry cake blocks can be stirred evenly with water, grasped into a ball by hand, and crushed. In this case, cover it with plastic wrap or plastic wrap. Rapeseed cake is a traditional farmyard manure raw material with good fertilizer efficiency. Of course, it is usually used after fermentation and decomposition. Or a ladder stacked into a whole, covered with film. After half a month, stir with a shovel for 2-3 times every 20 days. Keep 40-60% moisture, so that the substances on the surface edge can be fermented completely when repeated operations.

Rapeseed cake is the residue after pressing or soaking out oil. Rapeseed cake is the main cake fertilizer used in south china agriculture. Rapeseed cake is rich in organic matter and nitrogen, and contains a considerable amount of phosphorus, potassium and trace elements. Farmers used to call it fine fertilizer. At the same time, vegetable cake plant fiber is decomposed into small molecular sugar carbon sources to prevent the production of carbon dioxide, nitrogen dioxide and ammonia gas and reduce side effects. This is the reason why natural fermentation is not used, because natural fermentation will lose many effective components and reduce fertility and fertilizer efficiency. I put it in a bag, sprinkled it with water and covered it with plastic paper to keep warm. It can be used as base fertilizer at 20 degrees for half a month.