Soil nutrients: soil ammonium nitrogen, soil available phosphorus, soil available potassium, soil nitrate nitrogen, soil hydrolyzed nitrogen, soil total nitrogen, soil total phosphorus, soil total potassium, soil organic matter (Lin Qiu method), soil organic matter (leaching method), PH value, salt content and moisture.
Trace elements in soil: soil calcium, soil magnesium, soil sulfur, soil silicon, soil boron, soil iron, soil copper, soil manganese, soil zinc and soil chlorine.
Fresh crop nutrition: nitrate nitrogen, ammonium nitrogen, phosphorus and potassium; Trace elements in crops: calcium, magnesium, sulfur, silicon, boron, iron, copper, manganese, zinc and chlorine; Nitrate and nitrite in crops.