It also has magnesium, copper, phosphorus, and potassium. You can sprinkle them directly into your soil, or you can also add coffee grounds to the compost pile. The coffee grounds break down ...
To improve the health of the soil you'll need to take a sample, read its nutrients and pH level, then enhance it with whatever additive (amendment) it needs to bring the soil into a healthy balance.
For natural farming systems, where soil analysis revealed high levels of available phosphorus and no deficiencies in micronutrients, the use of chemical fertilisers is being discouraged.
The herbivore assemblage affected the microbial community diversity, but not the plant community diversity. Total phosphorus, soil bulk density, root biomass, and plant α-diversity were correlated ...