The most essential meaning of agricultural production is to produce high-quality, high-yield agricultural products in a sustainable manner, which has been a constant law since ancient times. The pursuit of quality and yield of agricultural products has never ceased, whether in today's technologically advanced or technologically backward feudal society. Fertilizer application, irrigation, reasonable density planting, grafting, variety breeding, insecticide, thinning, soil loosening, soil testing, etc. are all acts to improve the quality and yield of agricultural products.

Soil testing is a very important task in modern agricultural production. Through soil testing we can know the soil moisture, nutrient content, pH, pollution and other data related to soil quality. The data obtained from soil testing is essential for agricultural production.

Soil moisture testing: Soil moisture is a data that indicates the moisture content of the soil. Through soil moisture testing, we can know the moisture content or implement scientific irrigation according to the testing data to ensure that the crop can not be affected by the moisture situation and yield or quality.

Soil nutrient detection: soil nutrients are essential for plant growth, too little or too much nutrients will affect crop growth, so a reasonable soil nutrient content is still very important for crop growth. Soil nutrient testing can help us to guide the fertilization work.

Soil heavy metal testing: Soil heavy metal testing can determine the pollution of a piece of soil. In general, heavy metals in soil are residues caused by industrial pollution and pesticide abuse. Once crops absorb heavy metals and are consumed, this will greatly endanger human health problems.

Therefore, soil testing is very significant for agricultural production, it is very important for our agricultural production and environmental management.