Chapter 3 Flashcards
a farming management concept based on observing, measuring and responding to inter- and intra-field variability in crops.
Precision agriculture (PA)
is also sometimes referred to as precision
farming, satellite agriculture, as-needed farming, and site-specific crop management (SSCM).
Precision agriculture
uses information technology (IT) to ensure that crops and soil receive exactly what they need for optimum health and productivity. This also ensures profitability, sustainability and protection of the environment. It considers aspects such as soil type, terrain, weather, plant growth and
yield data when managing crops.
Precision agriculture
has always been to be able to produce as much crop as possible
in the shortest time and at the lowest cost. For this reason, modern technology is being used more and
more to be able to optimize all the variables used in agriculture.
goal of precision agriculture
the ability to precisely locate and map field boundaries, soil
characteristics, and other relevant features.
Site-specific Management / Geolocation Site-specific Management / Geolocation
serves as the foundation for site-specific
management, enabling farmers to understand the spatial variability within their fields and tailor
their management practices accordingly
Geolocation
which allow farmers to precisely map field boundaries,
record spatial data, and overlay various layers of information for analysis and decision-making.
This spatial data forms the basis for generating prescription maps and guiding machinery equipped
with GPS technology to perform precise tasks in the field.
GPS (Global Positioning System) and
GIS (Geographic Information Systems),
Central to precision agriculture is the collection and analysis of data from various sources,
including sensors, satellite imagery, drones, and weather stations. This data provides valuable
insights into crop health, soil conditions, weather patterns, and other factors influencing farm
productivity. By making informed decisions based on data analysis, farmers can better optimize
their practices and resource allocation.
Data-driven decision-making
Rather than applying inputs uniformly across entire fields, precision agriculture advocates
for the targeted application of inputs based on site-specific conditions. This includes variable rate
application of fertilizers, pesticides, and irrigation water, ensuring that inputs are applied where
they are most needed, thus reducing waste and environmental impacts.
Precision application of inputs
Precision agriculture leverages a wide range of technologies, including GPS (Global
Positioning System), GIS (Geographic Information Systems), remote sensing, IoT (Internet of
Things), and automation. These technologies enable real-time monitoring of field conditions,
automated machinery operation, and precise application of inputs, enhancing efficiency and
productivity.
Integration of technology
Precision agriculture aims to minimize the environmental impact of farming practices by
reducing inputs such as fertilizers, pesticides, and water, while maximizing yields. By optimizing
resource use and minimizing waste, precision agriculture promotes sustainable farming practices
that preserve natural resources and mitigate environmental degradation.
Sustainability and environmental stewardship
Precision agriculture is an evolving field that embraces innovation and adaptation to new
technologies and practices. Farmers are encouraged to continually monitor and evaluate their practices, incorporating new insights and technologies to improve efficiency, productivity, and
sustainability over time.
Continuous improvement and adaptation
is an electronic device that can sense the desired measured information from the
environment and transform it into an electrical signal or other required forms of information output.
sensor
provides sensors with the ability to gather information from
a variety of locations and transmit it to a central location where the information can be used to make
agricultural decisions.
IoT
are programmed to meet the requirements of information transmission, processing, storage,
display, recording, and control. Sensors in agriculture are used to pick up measured information about the
environment or plants, and that’s transformed by the sensors to electrical signals that can be used to
analyze the information.
Sensors
use light to measure data. These sensors can be installed and
mounted on automobiles, satellites, drones, or robots that are able to be mobile enough to pick
up data.
Optical sensors.
The sensors cause the soil to reflect, which provides farmers with information about the
soil and plant color. ____ can help measure the moisture of soil, the organic matter
content of soil, the content of clay, and more.
Optical sensors.
These sensors help in gathering chemical data of the soils by detecting
specific ions in the soil. They provide information about the pH and soil nutrient levels.
Electrochemical sensors.
The goal of these sensors is to gather highly specific information
about the soil to make informed decisions.
Electrochemical sensors.
These sensors are used to measure soil compression or mechanical
opposition.
Mechanical sensors
This sensor calculates the moisture levels in the soil with the assistance of a dielectric constant. This is an electrical property that substitutes depending on the
moisture content in the soil.
Dielectric soil moisture sensors.
These sensors are primarily used to determine the moisture levels of
the soil for optimal crop growth.
Dielectric soil moisture sensors.
These sensors are used to help manage weather conditions, and they’re
positioned at different places in a field to gather data about weather. The sensors use GPS location
data to determine where certain phenomena are occurring
Location sensors.
These types of sensors measure soil air penetration. The expected result is the
pressure needed to push a decided amount of air into the ground at a prescribed depth. These
sensors can be fixed or mobile sensors to gather a variety of data.
Air flow sensors
