Test and Analysis of Nutrients in Maize Soil by Soil Tester Corn is a very common crop and requires many nutrients in corn growth. The soil tester can help us to understand the composition and content of trace elements in soil and provide guidance for fertilization in soil. Like other green plants, corn can absorb inorganic substances from the outside world for assimilation and use to form organic substances and supply its own needs for growth and development. The necessary nutrients for corn growth include carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, silicon, copper, iron, sulfur, manganese, zinc, boron, aluminum, and chlorine. According to their content in the corn plant, they can be divided into a large number of elements and trace elements. A large number of elements refer to nitrogen, phosphorus, potassium, sulfur, calcium, silicon, magnesium, carbon, hydrogen, and oxygen. Trace elements are found in small amounts in plants, mainly iron, manganese, boron, zinc, molybdenum, and chlorine. Each nutrient element necessary for corn growth has its own specific physiological role and is indispensable and cannot substitute for each other. Carbon, hydrogen, and oxygen are produced by the photolysis of water absorbed from the air and absorbed from the soil. They constitute the major part of corn production, accounting for approximately 99% of the fresh corn weight. Other elements are mainly absorbed from the soil, soil testers for corn The analysis of soil elements shows that the requirements for nitrogen, phosphorus, and potassium are the most, while the effective content in soil is small, and it is often necessary to supplement them by fertilizing to meet the requirements of corn growth. Therefore, nitrogen, phosphorus, and potassium are called the three elements of growth. . Others, like sulfur, calcium, silicon, and magnesium, require less, called intermediate elements. GGS-240P5 Liquid Filling Sealing Machine Ggs-240P5 Liquid Filling Sealing Machine,Liquid Sachet Machine,Liquid Stick Pack Machine,Sachet Water Filling And Sealing Machine Wenzhou Grand Machinery Technology Co., Ltd. , https://www.dagemachinery.com