The invention discloses an intelligent water and
fertilizer integrated
irrigation system based on an
Internet of Things sensor and a large
language model, and relates to the technical field of intelligent
agriculture. The
system obtains soil, weather and
plant growth state data in real time through
Internet of Things sensors, including a soil sensor, a weather sensor and a multispectral sensor, deployed in a farmland; the method comprises the following steps: based on a large
language model architecture, integrating preset agricultural field
knowledge base data, performing field adaptive
fine tuning on
model parameters by adopting a
data migration technology, and constructing an intelligent
irrigation control model with a dynamic decision-making function; the control model analyzes sensor data and
crop growth requirements, generates a water and
fertilizer supply strategy, calls an internet-of-things control interface of the water and
fertilizer all-in-one
machine, and automatically adjusts
irrigation water quantity and proportional supply of
nutrient elements such as
nitrogen,
phosphorus and
potassium. According to the invention,
Internet of Things perception and
large model decision are fused, and different environments are adapted through fine adjustment, so that closed-loop precise control is realized, and the water and fertilizer
utilization rate and the
crop yield are remarkably improved. Actual measurement shows that the
system can improve the water and fertilizer
utilization rate by 30% or above, and the
crop yield is increased by 15-20%.