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Industries & Professions /
The nature of the work of the agricultural scientist can be broken down into several areas of specialization. Within each specialization there are various careers.
The following are careers that fall under the areas of plant and soil science.
Agronomists investigate large-scale food-crop problems, conduct experiments, and develop new methods of growing crops to ensure more efficient production, higher yields, and improved quality. They use genetic engineering to increase the nutritional value of crops; develop crops that are resistant to pests, drought, and plant diseases; increase the quality of seed stock; reduce the amount of harmful pesticides needed to grow crops; create weed-resistant plants; and produce foods that are free of allergens or toxins (such as mycotoxin, which can cause people who consume mycotoxin-contaminated crops to become very ill or even die).
Agronomists also engage in soil science. They analyze soils to find ways to increase production and reduce soil erosion. They study the responses of various soil types to fertilizers, tillage practices, and crop rotation. Since soil science is related to environmental science, agronomists may also use their expertise to consult with farmers and agricultural companies on environmental quality and effective land use.
Botanists are concerned with plants and their environment, structure, heredity, and economic value in such fields as agronomy, horticulture, and medicine.
Horticulturists study fruit and nut orchards as well as garden plants such as vegetables and flowers. They conduct experiments to develop new and improved varieties and to increase crop quality and yields. They also work to improve plant culture methods for the landscaping and beautification of communities, parks, and homes.
Plant breeders apply genetics and biotechnology to improve plants' yield, quality, and resistance to harsh weather, disease, and insects. They might work on developing strains of wild or cultivated plants that will have a larger yield and increase profits.
Plant pathologists research plant diseases and the decay of plant products to identify symptoms, determine causes, and develop control measures. They attempt to predict outbreaks by studying how different soils, climates, and geography affect the spread and intensity of plant disease.
Another area of specialization for agricultural scientists is animal science.
Animal scientists conduct research and develop improved methods for housing, breeding, feeding, and controlling diseases of domestic farm animals. They inspect and grade livestock food products, purchase livestock, or work in sales and marketing of livestock products. They often consult agricultural businesses on such areas as upgrading animal housing, lowering mortality rates, or increasing production of animal products such as milk and eggs.
Dairy scientists study the selection, breeding, feeding, and management of dairy cattle. For example, they research how various types of food and environmental conditions affect milk production and quality. They also develop new breeding programs to improve dairy herds.
Poultry scientists study the breeding, feeding, and management of poultry to improve the quantity and quality of eggs and other poultry products.
Animal breeders specialize in improving the quality of farm animals. They may work for a state agricultural department, agricultural extension station, or university. Some of their work is done in a laboratory, but much of it is done outdoors working directly on animals. Using their knowledge of genetics, animal breeders develop systems for animals to achieve desired characteristics such as strength, fast maturation, resistance to disease, and quality of meat.
Animal scientists also use biotechnology to improve the health of animals and humans, increase livestock productivity, and reduce the environmental impact of agricultural production. The Biotechnology Industry Organization reports that animals that have been safely genetically engineered in research studies include pigs, cattle, goats, chickens, and sheep. Genetically engineered animals have not been approved by the Food and Drug Administration (FDA) to be placed into the human food supply, but the FDA is currently reviewing the introduction of the first genetically engineered food animal, the AquaAdvantage salmon.
Food science is a specialty closely related to animal science, but it focuses on meeting consumer demand for food products in ways that are healthy, safe, and convenient.
Food scientists use their backgrounds in chemistry, microbiology, biotechnology, and other sciences to develop new or better ways of preserving, packaging, processing, storing, and delivering foods. Food technologists work in product development to discover new food sources and analyze food content to determine levels of vitamins, fat, sugar, and protein. Food technologists also work to enforce government regulations, inspecting food processing areas and ensuring that sanitation, safety, quality, and waste management standards are met.
Another field related to agricultural science is agricultural engineering.
Agricultural engineers apply engineering principles to work in the food and agriculture industries. They design or develop agricultural equipment and machines, supervise production, and conduct tests on new designs and machine parts. They develop plans and specifications for agricultural buildings and for drainage and irrigation systems. They work on flood control, soil erosion, and land reclamation projects. They design food processing systems and equipment to convert farm products to consumer foods. Agricultural engineers contribute to making farming easier and more profitable through the introduction of new farm machinery and through advancements in soil and water conservation. Agricultural engineers in industry engage in research or in the design, testing, or sales of equipment.
Much of the research conducted by agricultural scientists is done in laboratories and requires a familiarity with research techniques and the use of laboratory equipment and computers. Some research, however, is carried out wherever necessary. A botanist may have occasion to examine the plants that grow in the volcanic valleys of Alaska, or an animal breeder may study the behavior of animals on the plains of Africa.