Chemical properties are characteristics of a substance or compound, where chemical changes or specific chemical reactions can know these properties. This chemical property also causes a sense to undergo specific reactions or not to undergo certain reactions. Of course, this chemical property is fundamental to study when we analyze an object related to chemical substances and compounds.

Soil chemistry is the study of the chemical characteristics of the soil. Soil chemistry concerns mineral composition, organic matter, and environmental factors. The chemical properties of the soil analyzed were the degree of soil acidity or pH, Cation Exchange Capacity or CEC, phosphorus (P), Potassium (K), Nitrogen (N), and C-organic.

Soil chemical properties are closely related to soil fertility’s role in providing nutrients plants need in the development and production process.

Soil biology studies microbial and faunal activity and their ecology in the soil. Soil fauna, soil biota, or edaphone is usually used to describe organisms that spend most of their life cycles in the soil or organic sediments above it. Soil fauna includes earthworms, nematodes, fungi, bacteria, and arthropods. The decomposition of organic matter by organisms greatly influences fertility and soil structure, so soil biology plays a vital role in determining soil characteristics.

Most of the biodiversity in the form of microorganisms is in or near the soil surface. At least from eukaryotes, Animalia to prokaryotes inhabits soil ecology.[1] The relationship between soil microorganisms and soil function is quite complex and has been the subject of various observational activities. The food chain plays an essential role in the nutrient cycle, where the energy source is not always organic material but also inorganic minerals initiated by chemosynthetic bacteria and nitrogen by nitrifying bacteria, and plays a role in biogeochemical soil cycles.