Agronomist dictionary

Crop protection

Tank mix

A tank mix is a combination of two or more pesticides or fertilizers within a single spray tank to be applied to crops in one pass.

Crop protection

Tank mix compatibility

The ability of two or more pesticides or agrochemicals to be mixed in a spray tank without compromising their efficacy or causing crop injury.

Sowing and varieties

Target plant density

This is the planned number of established, productive plants per unit area, optimized to achieve the maximum yield potential for a specific crop variety under g...

Growth and development

Technical maturity

The stage of crop development when the produce reaches its optimal quality, size, and texture for processing, storage, or market distribution, prior to full bio...

Storage and economics

Technological losses

These are losses of agricultural produce that occur during harvesting, transport, or processing due to technical limitations and operational farming practices.

Weather and climate

Temperature inversion

A weather phenomenon where air temperature increases with altitude, preventing the normal vertical mixing of air near the ground.

Weather and climate

Temperature threshold

A specific temperature range that triggers, maintains, or terminates essential biological processes and physiological development stages in crops.

Growth and development

Thermoperiodism

Thermoperiodism is the physiological response of plants to the alternation of day and night temperatures, influencing their growth, flowering, and metabolic eff...

Sowing and varieties

Thousand kernel weight

A metric expressed in grams that represents the weight of one thousand individual seeds of a specific crop at a standard moisture level.

Storage and economics

Threshing efficiency

This is the ratio of the mass of grain actually threshed out of the ear or head to the total mass of grain present before the harvesting process begins.

Growth and development

Tillering

Tillering is the process of producing additional stems (tillers) from the base of a grass plant, which significantly impacts crop density and yield potential.

Growth and development

Tillering

Tillering is the development of lateral shoots from the base of cereal plants, increasing the total number of stems per plant.

Sowing and varieties

Tillering coefficient

An agronomic index representing the average number of productive stems or tillers produced by a single plant in cereal crops.

Sowing and varieties

Tillering node depth

This is the distance from the soil surface to the tillering node, the physiological point where secondary roots and shoots originate in cereal crops.

Sowing and varieties

Tillering node depth

The distance from the soil surface to the first node on a cereal stem from which adventitious roots and lateral shoots develop.

Crop protection

Tillering phase

A growth stage in cereal crops characterized by the development of side shoots from the tillering node at the base of the main stem.

Growth and development

Topping

An agricultural practice of removing the terminal bud or the top part of a plant's main stem to stop vertical growth and stimulate side development.

Machinery and irrigation

Trailed sprayer

An agricultural machine for applying pesticides and liquid fertilizers that is towed by a tractor and moves on its own wheels.

Growth and development

Transpiration

This is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems, and flowers.

Weather and climate

Transpiration ratio

The transpiration ratio is the amount of water in grams required by a plant to produce one gram of dry matter.

Machinery and irrigation

Twin fan nozzle

A type of sprayer nozzle that produces two independent spray fans at different angles to provide superior coverage of the crop canopy.

Storage and economics

Two-stage harvesting

A harvesting method where crops are first cut into windrows to mature and dry, followed by a separate operation of threshing using a combine harvester with a pi...