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by Stephen Powles
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Agronomy is the science of soil management and the production of crops. It is a multidisciplinary field that encompasses a range of disciplines, including soil science, plant genetics, plant physiology, and meteorology. It is concerned with the efficient and sustainable use of natural resources, and with finding ways to improve crop yields and quality in the face of environmental challenges such as pests, diseases, and climate change.

In addition to improving crop production, agronomy can also have a number of other benefits. For example, agronomic practices that optimize soil conditions can help to reduce erosion and improve water quality, while the use of cover crops and other agronomic techniques can help to sequester carbon and mitigate the impacts of climate change. It can also contribute to the conservation of natural resources, by finding ways to reduce the use of inputs such as water, fertilizers, and pesticides.

Despite the many benefits of agronomy, the field is not without its challenges and limitations. One of the main concerns in agronomy is the potential for negative environmental impacts, such as the overuse of chemical fertilizers and pesticides, which can lead to soil degradation and water pollution. In addition, the increasing demand for biofuels and other non-food crops has raised concerns about the potential for competition with food crops for land and resources.

Further, the specific agronomic practices used in a given situation will depend on a range of factors, including the local climate, soil conditions, and the specific crop or livestock being produced. Therefore, it is important for agronomists to carefully consider these factors in order to develop the most appropriate and effective agronomic strategies.


Furthermore, it is worth noting that the father of agronomy is generally considered to be the ancient Greek philosopher and naturalist Theophrastus, who wrote two influential treatises on the subject in the 4th century BCE: “On the Causes of Plants” and “On the Natural History of Plants.” Theophrastus’s work laid the foundations for the study of agronomy and influenced the development of botany and horticulture for centuries to come.

Types of agronomy

There are several different types of agronomy, including:

1. Field agronomy: This type involves the production of crops such as grains, oilseeds, and fiber crops. Field agronomy is concerned with optimizing soil conditions, selecting suitable crop varieties, and applying appropriate fertilizers and pest controls.

2. Horticultural agronomy: This type focuses on the production of fruits, vegetables, and ornamental plants. Horticultural agronomy involves the use of specialized techniques such as greenhouses, hydroponics, and other forms of controlled environment agriculture.


3. Pasture agronomy: This type is concerned with the management of grasslands for the production of livestock. Pasture agronomy involves the use of techniques such as rotational grazing and the application of fertilizers and pest controls to optimize forage quality and productivity.


4. Irrigation agronomy: This type involves the use of irrigation systems to manage the water needs of crops. Irrigation agronomy is particularly important in arid or semi-arid regions where natural precipitation is insufficient to support crop growth.


5. Precision agronomy: This type involves the use of advanced technologies such as GPS and remote sensing to optimize crop production and management. Precision agronomy allows farmers to tailor their management practices to the specific needs of their fields, improving efficiency and reducing inputs.

Branches of agronomy

Agronomy is a broad field that encompasses a variety of subdisciplines, including:

Plant breeding: This branch of agronomy focuses on the development of new plant varieties with improved characteristics, such as higher yields, resistance to pests and diseases, and improved nutritional content.

Plant physiology: This branch studies the functions and processes of plants, including how they grow, develop, and respond to their environment.

Soil science: This branch focuses on the properties and management of soil, including how it is formed, how it supports plant growth, and how it can be conserved and improved.

Agricultural meteorology: This branch studies the role of weather and climate in agriculture, including how temperature, rainfall, and other factors impact crop growth.

Agricultural economics: This branch studies the economic and social aspects of agriculture, including how to optimize production and distribution of agricultural products.

Agricultural engineering: This branch focuses on the design and development of equipment, structures, and systems for use in agriculture, such as irrigation systems, greenhouses, and farm machinery.

Agricultural extension: This branch focuses on the transfer of research-based knowledge and technologies to farmers and other agricultural professionals to improve their practices and productivity.

Agronomy as career

Agronomy can be a rewarding career for individuals who are interested in agriculture and the science behind it. Agronomists are trained in the principles of plant and soil science, and they use this knowledge to help farmers and other agricultural professionals grow crops more efficiently and sustainably. It is a broad field that encompasses a variety of subdisciplines, including plant breeding, plant physiology, soil science, and agricultural meteorology, among others. Agronomists can work in a variety of settings, including research institutions, government agencies, and private companies. If you are interested in a career in agronomy, it is a good idea to gain experience in the field through internships or other hands-on learning opportunities. A bachelor’s or master’s degree in agronomy or a related field is typically required for most its jobs.


In conclusion, agronomy is a multidisciplinary field that is concerned with the efficient and sustainable production of crops. It can have a range of benefits, including improved crop yields and quality, enhanced environmental quality, and the conservation of natural resources. However, it also has its challenges and limitations, and it is important for agronomists to carefully consider the potential impacts of their practices.

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