Fertilizer ratios indicate the percent of nutrients, by weight, in a particular fertilizer. Ratios are always given as the percent nitrogen (N), phosphorus (P), followed by potassium (K), in this order. For example, a 10-10-20 fertilizer contains 10-percent N, 10-percent P and 10-percent K. Pulling out our producer calculator, this means that 100 pounds of this fertilizer will actually contain ...
To access content, please login or purchase a subscription.