Knowra Precision agriculture Precision agriculture Precision agriculture uses location-specific data and technology to manage farming inputs and operations. It varies decisions across fields rather than treating each field as uniform.
Global Positioning System : A satellite-based navigation system that provides positioning and timing information worldwide. It assigns precise geographic coordinates to field measurements and machinery operations.
Global Navigation Satellite System : A family of satellite systems that provide positioning, navigation, and timing services. GPS is one member of the broader satellite-navigation family used in farm equipment.
Precision irrigation : Irrigation management that varies water delivery according to spatial differences in crop or soil need. It targets water to zones with differing moisture conditions or crop demand.
Uniform-rate application : The application of an agricultural input at a constant rate across an entire treated area. It represents the field-wide approach that variable-rate management replaces.
Nitrogen-use efficiency : The proportion of applied or available nitrogen that crops take up or convert into harvested product. Better-matched fertilizer rates can improve crop nitrogen use and reduce losses.
Geographic information system : A system for capturing, storing, analyzing, and displaying geographically referenced data. It layers yield, soil, and terrain maps to reveal patterns within a field.
Soil sampling : The collection of soil specimens for laboratory or field analysis. Georeferenced samples reveal nutrient and soil-property differences within fields.
Site-specific nutrient management : Nutrient management that adjusts fertilizer decisions to spatial variation in soil supply and crop demand. It applies the location-specific approach directly to fertilizer planning.
Conventional agriculture : Agricultural systems that commonly rely on standardized practices and broad-area management. Its uniform management provides a contrast to within-field targeting.
Agricultural runoff : Water from farmland that carries soil, nutrients, pesticides, or other materials into surrounding environments. Targeted input decisions may reduce excess nutrients available for runoff.
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