NYSTCE Agriculture CST key terms

The science and practice of growing field crops and managing soil for food, feed, and fiber production, combining plant physiology, soil management, and crop rotation decisions.

A crop grown primarily to be sold for income rather than consumed by the farm household, such as corn, soybeans, cotton, or wheat in commodity markets.

A plant grown between main crops to protect soil from erosion, add organic matter, suppress weeds, or fix nitrogen, then terminated before the next production cycle.

A cover crop that is deliberately plowed or incorporated into the soil while still green so its nutrients and organic matter enrich the field for a following crop.

The planned sequence of different crops on the same field across seasons, used to break pest and disease cycles, balance nutrients, and improve soil structure.

Growing a single crop species over a large area or repeated seasons, which raises efficiency but increases vulnerability to pests, diseases, and nutrient depletion.

Mechanical disturbance of soil by plowing, disking, or cultivating to prepare a seedbed, control weeds, or incorporate residue, often at the cost of soil structure and moisture.

A conservation practice in which crops are planted directly into undisturbed soil with minimal or no plowing, preserving residue cover, soil structure, and moisture.

The detachment and movement of topsoil by wind or water, accelerated by bare ground and poor structure, reducing fertility and polluting waterways with sediment.

A measure of soil acidity or alkalinity on a 0 to 14 scale that governs nutrient availability, microbial activity, and which crops can be grown successfully.

The relative proportions of sand, silt, and clay particles in soil, which determine water-holding capacity, drainage, aeration, and workability for field operations.

Decaying plant and animal material in soil that improves structure, holds water and nutrients, and feeds soil organisms; measured as a key indicator of soil health.

The dark, stable, fully decomposed portion of soil organic matter that resists further breakdown and contributes strongly to water retention and cation exchange capacity.

The soil's capacity to hold positively charged nutrient ions such as calcium, magnesium, and potassium on clay and organic matter surfaces for uptake by plant roots.

Ground limestone or related material applied to soil to raise pH and supply calcium, correcting acidity that limits nutrient availability and crop yields.

A material applied to supply essential plant nutrients, described by its nitrogen, phosphorus, and potassium analysis, and managed to avoid runoff and groundwater contamination.

Any of the elements plants need in large amounts: nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur, each serving distinct growth and structural roles.

The conversion of atmospheric nitrogen gas into plant-usable forms, carried out biologically by rhizobia in legume root nodules or industrially in fertilizer manufacture.

A plant of the pea family that forms a symbiotic relationship with nitrogen-fixing bacteria in root nodules, often used in rotations to enrich soil nitrogen.

The land area that drains into a common stream, river, or lake, used as the unit for managing water quality and nonpoint pollution from farms.

A network of buried perforated pipes that removes excess subsurface water from poorly drained fields, improving aeration and allowing earlier field operations.

A decision framework that combines monitoring, thresholds, biological controls, cultural practices, and judicious pesticide use to manage pests with minimal economic and environmental harm.

The pest population level at which control measures are justified because projected crop damage would exceed the cost of treatment.

Managing pests by introducing or conserving living natural enemies such as predators, parasitoids, and pathogens rather than relying solely on chemical pesticides.

The inherited ability of a pest population to survive doses of a pesticide that would formerly kill it, developing through repeated selection pressure and overuse.

An animal, commonly a bee, that transfers pollen between flowers, enabling fertilization and fruit or seed set in many crops and supporting ecosystem health.

The controlled farming of aquatic organisms such as fish, shellfish, and plants in ponds, tanks, or net pens, distinct from harvesting wild populations.

The physical and psychological well-being of farm animals, addressed through housing, handling, health care, and humane slaughter practices guided by science and standards.

Domesticated animals raised for food, fiber, labor, or other products, including cattle, swine, sheep, goats, and poultry managed in production systems.

A hoofed mammal with a multi-chambered stomach whose microbes digest fibrous plant material through fermentation, including cattle, sheep, goats, and deer.

Plant material such as grasses, legumes, and hay consumed by grazing or fed livestock, forming the nutritional base of many ruminant production systems.

The tagging, branding, or electronic marking of livestock to track individual animals for health, breeding, movement, and traceability purposes.

An organism whose genetic material has been altered through biotechnology, such as crops engineered for pest resistance or herbicide tolerance, subject to regulatory review.

Choosing parent plants or animals with desired traits to produce offspring with improved yield, hardiness, or quality over successive generations.

A quality-assurance process verifying that seed meets standards for genetic purity, germination, and freedom from weeds or disease before sale to growers.

A standardized agricultural product traded in bulk, such as corn or soybeans, whose price is set by grades and market forces rather than branding.

The study of how farmers allocate land, labor, capital, and inputs to maximize returns while managing risk, prices, and government programs.

Farming that meets present food and fiber needs while conserving soil, water, biodiversity, and economic viability for future generations.