Planting vegetables must be inseparable from a variety of fertilizers, especially like their own vegetables, there are many friends who do not like to use chemical fertilizers, just want to plant some healthy vegetables, since there is no chemical fertilizer, it is inseparable from organic fertilizer, in many organic fertilizers, such as: soybean cake, rapeseed cake, peanut bran, etc., are very popular, these substances become a good organic fertilizer after fermentation, but many growers only know how to use, and do not know which cake fertilizer is effective. Today, I will give you a detailed introduction to the nutrient content and fertilizer efficiency of various cake fertilizers for your reference
1. Rapeseed cakeRapeseed cake is the residue left after the seeds of various vegetables are pressed for oil, which is not only rich in organic matter, amino acids, proteins, oils, but also contains nitrogen, phosphorus, potassium and various trace elements. Rapeseed cake contains about 46%, phosphorus about 24%, potassium about 14. The content of phosphorus is high. However, the nitrogen content and overall fertilizer efficiency are not as good as soybean cake and peanut cake, because rapeseed cake contains high phosphorus and potassium, and the effect is very good for various crops such as fruits and vegetables, potatoes, sweet potatoes and so on. 
2. Peanut branPeanut bran is the leftover material after squeezing oil from peanuts, the shape is similar to that of soybean cake and rapeseed cake, and the fertilizer effect is almost the same as that of soybean cake. Peanut bran contains about 63%, phosphorus about 12%, potassium about 13%, the content of nitrogen, phosphorus and potassium is lower than that of soybean cake, peanut bran is not only a high-quality feed, but also a high-quality organic fertilizer. Whether it is used to grow vegetables or raise flowers at home, it is very good, mainly natural green, and any vegetable can be used. 
3. Bean cakeSoybean cake is the leftover material after soybean oil extraction, which contains amino acids, proteins, oils, and nutrients needed for the growth of various plants, of which the nitrogen content is about 7% and the phosphorus content is about 21%, potassium content about 21%, among all cake fertilizers, the overall nutrients are higher than other cake fertilizers, and it is the cake fertilizer with the best and highest fertilizer efficiency among all cake fertilizers. For example, the soybean protein and soybean amino acids currently sold on the market are all produced with soybean cake as raw materials. Therefore, in the same situation, it is better to use cake fertilizer as fertilizer, or choose soybean cake. 
In addition to the three types of cake fertilizers commonly used above, there are also tea bran, sesame cakes, sesame paste residues, etc., which are all good organic fertilizers, but although these fertilizers are very good organic fertilizers, it is best to ferment them before using them. During fermentation, it can ferment both solid fertilizer and water fertilizer, which is flexible and changeable. 
Cake fertilizer fermentation methodFirst of all, all kinds of cake fertilizer are soaked in a small amount of water, or chopped and smashed, and then the water is modulated by about 60%, if there is more water, it is dried in fermentation first, pay attention to fermented solid fertilizer, and must not add more water, otherwise it is easy to stink. Methods for judging water content: After adding water, stir evenly, grasp a handful with your hand and hold it firmly, there is water sewn by your fingers but not dripping, and it can be automatically spread out on the ground gently, which is the standard. If possible, you can add organic fertilizer starter during fermentation, stir evenly and put it in a place with high temperature and no sunlight, avoid rain and sunlight, about 2-3 days, the intermediate temperature reaches more than 50 degrees to turn over the pile, turn it over every few days, until the temperature drops down and the fermentation is completed. The fermented cake fertilizer is dark brown in color, and it can be used as fertilizer with a slight aroma or fermented taste. 
Although cake fertilizer is a good natural organic fertilizer, but the highest level, if only with cake fertilizer to grow vegetables, with less can not play much role, with more cost is a bit too high, if the cake fertilizer mixed with other organic fertilizer to use, can not only save costs, fertilize the land, but also play a good effect.