Description
NO3-N, Olsen-P (Bray-P for pH<6), x-K, NH4-N.
This is a soil fertility test. It test the amounts of nitrogen, phosphorus and potassium and includes ammonium.
$60.00
NO3-N, Olsen-P (Bray-P for pH<6), x-K, NH4-N.
This is a soil fertility test. It test the amounts of nitrogen, phosphorus and potassium and includes ammonium.