Luster Leaf Soil Fertilizer Meter
In a 10 second test, the Soil Fertility Meter reads the combined levels of nitrogen, phosphorous and potash for maximum health, growth and productivity. Measurements are based on U.S. Department of Agriculture.
In a 10 second test, the Soil Fertility Meter reads the combined levels of nitrogen, phosphorous and potash for maximum health, growth and productivity. Measurements are based on U.S. Department of Agriculture.