The invention relates to an intelligent water and
fertilizer precise
drip irrigation regulation and control method for cotton in
saline-
alkali soil, and belongs to the technical field of precise
agriculture. According to the method, accurate regulation and control of the whole
growth cycle of the cotton are achieved through three-in-one technology integration of accurate
seedling erecting and
population construction, water and
fertilizer integrated
collaborative management and
informatization intelligent decision making. The core technology comprises wide-narrow row precision seeding and density optimization configuration based on
soil fertility difference, a dynamic fertilization strategy of'front control, middle promotion and rear supplement ', intelligent
drip irrigation control based on
soil moisture content and a
crop water demand model, and a growth and development monitoring and
decision support system based on multi-source
information fusion (unmanned aerial vehicle
remote sensing and ground
Internet of Things). According to the method, the problems of low water and
fertilizer utilization rate, unreasonable group structure and management link splitting in traditional cotton field management are solved, water can be saved by 30%-40%, fertilizer can be saved by 20%-30%, the boll forming rate can be increased by 15% or above, the
fiber quality is remarkably improved, and
economic benefits and ecological benefits are in synergistic interaction.