1.Test N,P,K in fertilizer and organic matter in soil, in the plants. 2.Test PH and salinity in soil 3.with printer Introduction:The soil nutrient tester can quickly test the N, P, K, humic acid , organic matter,salinity, and PH in the soil, fertilizer and plants, and also can store datum, remote send andprint by computer.1.Quickly test the N, P, K, humic acid , organic matter, salinity, and PH ...