This invention discloses a synergistic method for cold-season
grazing and warm-season fertilization in alpine meadows, belonging to the field of alpine
grassland ecological restoration and sustainable
agricultural management technology. The method includes the following steps: using UAV
remote sensing to acquire
spatial distribution information of
litter in the cold-season
grassland, and dividing the
grassland into patches with different
litter loads based on this information, implementing differentiated
grazing by region; using a soil sensor network buried in the grassland to monitor
soil temperature and
moisture content, dynamically defining the start and end times of cold-season
grazing and the operational window for warm-season fertilization; during the
warm season, spraying the grassland with
liquid nitrogen and
phosphorus fertilizer containing synergists according to the warm-season fertilization operational window. This invention deeply couples the physical disturbance of cold-season grazing with the
chemical regulation of liquid nutrients in the
warm season, solving problems such as slow
litter decomposition, low
fertilizer utilization, delayed
greening, and decreased
soil fertility in alpine meadows, achieving a synergistic improvement in grassland production and ecological functions.