Here is one possible way: This study looked at how well effective microorganisms helped tomato plants grow and how they affected the nutrients in the plants. There were two groups: one with effective microorganisms (EM) and one without (control). Effective microorganisms (EM) improve the quality of tomato transplants because they remain compact with a greater stem diameter. The leaves of the plants with EM had higher levels of nutrients like nitrates, nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg).
Full article with materials and methods can be downloaded on this website: