Agronomy knowledge

Agronomist dictionary

Short and clear definitions of agronomic terms: soil cultivation, sowing, nutrition, plant protection, machinery, and crop storage.

Terms in section: 20

E

Sowing and varieties

Early vigor

The ability of seedlings to rapidly establish vegetative biomass and develop a robust root system during the initial stages of growth.

Breeding and seed production

Ecological plasticity

This is the ability of a crop variety or hybrid to maintain stable productivity despite variations in environmental conditions and climatic factors.

Sowing and varieties

Ecological plasticity of a hybrid

The ability of a hybrid crop to maintain stable productivity when growing conditions fluctuate or across different climatic zones.

Breeding and seed production

Economic and biological assessment

A comprehensive analysis of agricultural crop varieties based on their productive potential and resistance to environmental stress factors.

Crop protection

Economic Injury Level

This is the lowest population density of a pest that will cause economic damage, justifying the cost of control measures.

Crop protection

Economic threshold

The pest population density at which control measures should be initiated to prevent an increasing pest population from reaching the economic injury level.

Storage and economics

Economic threshold of harvest losses

It is the critical level of crop loss at which the value of the harvested grain equals the cost of implementing measures to prevent further loss.

Weather and climate

Effective temperatures

This is the accumulation of air temperatures above a specific biological base threshold required for a crop to complete a developmental stage.

Digital farming

Electronic field record

A digital registry of land plot data containing systematized information on crop rotation history, soil characteristics, fertilizer application, and agricultura...

Digital farming

Electronic prescription map

A digital file containing site-specific instructions that guide automated agricultural equipment to vary application rates of inputs across a field based on loc...

Breeding and seed production

Elite seed-producing farm

An agricultural enterprise specialized in multiplying elite-category seeds to supply commercial farms with high-quality planting material.

Breeding and seed production

Elite seeds

Elite seeds are high-quality reproductive material derived from super-elite seeds, intended for the further production of commercial seed crops.

Machinery and irrigation

Emitter

An emitter is a device used in drip irrigation systems that regulates and delivers water or nutrient solutions to plants at a controlled, specific rate.

Crop protection

Entomophage

An entomophage is a beneficial organism, such as an insect or mite, that feeds on agricultural pests, naturally controlling their population density.

Machinery and irrigation

Equipment pitch

Equipment pitch is the longitudinal tilt of an agricultural implement relative to the soil surface, affecting the uniformity of soil engagement.

Soil and tillage

Eroded soils

Soils that have lost part of their fertile top layer due to the destructive action of wind (deflation) or water (erosion).

Soil and tillage

Erosion-prone lands

These are agricultural areas susceptible to the loss of topsoil and degradation caused by wind or water action due to topography, soil composition, and lack of...

Growth and development

Etiolation

A process in plants grown in partial or complete absence of light, characterized by long, weak stems and pale leaves due to lack of chlorophyll.

Weather and climate

Evaporability

Evaporability is the maximum amount of moisture that can evaporate from the soil surface and plants under given weather conditions, assuming an unlimited water...

Weather and climate

Evapotranspiration

The sum of evaporation from the soil surface and transpiration from plants into the atmosphere.