Ncsu's agronomy program

Our Program

Ncsu's program is all about agronomy. Agronomy is the science and technology of producing and using plants for food, fuel, and land reclamation. If we don't start taking care of our soil then it could get worst and we could run out. Without soil there would be no plants meaning we couldn't eat.

Weathering Agents

Weathering causes the disintegration of rock near the surface of the earth. The main agents of chemical weathering are oxygen, rainwater, carbon dioxide, and acids produced by decaying plants and animals that leads to the formation of soil.Mechanical Weathering: the process of which rocks break down into smaller pieces by physical means. Examples of mechanical weathering are: wind, ice, animals, plants, gravity.

Soil compostion/ soil horizon

Soil composition is an important aspect of nutrient management. While soil minerals and organic matter hold and store nutrients,soil water is what readily provides nutrients for plant uptake. Soil compostion: 25% air, 25% water, 45% mineral particles, and 5% organic matter such as humus, roots, and organisms. Soil horizon is a layer generally parallel to the soil surface, whose physical characteristics differ from the layers above and beneath.

Rate of soil formation

The age of a soil is generally considered to be the length of time in years since the land surface became relatively stable, thus enabling soil development to proceed.

Remote sensing

Remote sensing - the scanning of the earth by satellite or high flying aircraft in order to obtain information about it. Uses- Farmers use to observe their fields or pastures to asses their condition.

Importance of soil

Soil is important because we use soil to grow plants and plants help us breath. Soil is just as important as water. Uses of soil-Soils modify the atmosphere by emitting and absorbing gases (carbon dioxide, methane, water vapor, and the like) and dust.Soils provide habitat for animals that live in the soil (such as groundhogs and mice) to organisms (such as bacteria and fungi), that account for most of the living things on Earth.Soils absorb, hold, release, alter, and purify most of the water in terrestrial systems.Soils process recycled nutrients, including carbon, so that living things can use them over and over again.Soils serve as engineering media for construction of foundations, roadbeds, dams and buildings, and preserve or destroy artifacts of human endeavors.Soils act as a living filter to clean water before it moves into an aquifer.

Common misuses of soil and the consequences

A more significant problem is the growing number of situations where human misuse of the soil has led to pollution or contamination. Meaning the our air is dirty and that so is some parts of our soil which can lead to diseases.

Soil stewardship and advances in this field of agronomy

Organizations have been made to protect our soil, organizations such as The American Society of Agronomy, The Soil Science Society of America, and The Crop Science Society of America. These organizations help protect our soil and find new ways to make it stronger and better.