Soil itself has a lot of trace elements, but can not be absorbed by plants. However, there are a lot of organic components in sheep manure, which can make the soil more fertile. Moreover, various elements in it can be decomposed and utilized better, so as to improve soil fertility.
Using decomposed and fermented sheep manure as fertilizer can make a large number of beneficial microorganisms in the soil, which can improve the soil. In addition, after these beneficial ingredients die, the soil can become more loose. If there are more beneficial microorganisms, the soil will enter into a good cycle, and all kinds of harmful ingredients will be inhibited. In this way, the amount of pesticide used can also be reduced. At the same time, there are many enzymes in sheep manure, which can make the land more active when used in the soil. Then it is made into granules by NPK fertilizer manufacturing process to prolong fertilizer efficiency and promote plant production. https://www.thefertilizermachine.com/production-line/npk-fertilizer-production-line.html
The results showed that there were more nutrients and more trace elements in sheep manure after fermented with organic fertilizer. At the same time, the fermented sheep dung can absorb heavy metals, which can reduce the pollution of crops and make the roots grow better.