Tests for nitrate nitrogen, potassium, phosphorus, magnesium, manganese, aluminum, sulfates, ammonia nitrogen, nitrite nitrogen, chlorides, ferric iron, calcium, humus, and pH. Contains solutions and equipment for 50 tests for each element and 100 tests for pH. Results for nitrite nitrogen, nitrate nitrogen, phosphorus, and potassium are given in lbs./acre. Humus results are given in a %. All other parameters are given in ppm. Major element qualitative tests can be performed on green plant tissue for nitrogen, phosphorous, and potassium. Complete instructions included.
Product Notes: Extra Charge if Shipped by Domestic Air.
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