Three simple ways to estimate nutrient removal

Grasses use nutrients as they grow. Here are three easy ways to estimate the quantities of nutrients harvested by the grass.

Option 1: estimate based on N rate

Grass can only grow when it has N. No N means no growth. Therefore, the amount of N supplied as fertilizer, and the N from mineralization and N from irrigation if these quantities are substantial, sets an upper limit on the amount the grass can grow. The normal leaf nutrient content (see for example bentgrass or bermudagrass) of grass can then be used to find the K, P, Ca, and other element…