What do you think about this organic fertilizer?

Hi!
I would like to know your opinions about the following organic fertilizer:

N - 2,5%
P - 2,5%
K - 2,5%
MgO - 1,3%
Organic Matter - 60%

For lawns, the dosage is 1000-1500kg/ha or 20-30kg/200 square meters.