Vermicompost will have a higher amount of nitrogen, phosphorus, and potassium because of the worm castings. In any type of compost, manure is always beneficial. As with most things in life, too much of a good thing is a disaster in the waiting. In the case of vermicompost, if you add too much to already healthy soil, there is a risk of adding too many nutrients, which will have the reverse effect and actually damage the plant. Before mixing your compost and soil, remember you’re adding organic fertilizer to the soil. It has nitrogen, phosphorus, and potassium, plus multiple macronutrients.If you’d apply fertilizer sparingly, then lower the amount of compost you use.