The application discloses an adaptive farming,
animal husbandry and
fishery planting
nitrogen cavity constant-temperature fresh-keeping protective film and a multi-working-condition using method, belongs to the technical field of
new materials for facility
agriculture, and is provided with three types of cavity structures, namely, a double-layer cavity, a three-layer substrate double-
nitrogen interlayer and a single-layer single-cavity
nitrogen interlayer, and the heat insulation and
cooling effect can reach 30% or above, and the cavity in the low-temperature environment is free of
icing and condensation; the film body is matched with three types of sealing edges, namely, buckles, zippers and
hot melt glue, an internal partition strip separates independent small air chambers to realize selective nitrogen
filling in different zones, two types of
charge and discharge valves are matched, nitrogen making equipment and external nondestructive
temperature control detectors are matched, and differentiated
gas supply logic is provided according to the differences among planting,
livestock and poultry, aquatic products and fresh-keeping of
fresh food. The application solves the defects of traditional agricultural films, such as large
temperature difference,
high nitrogen consumption, complicated management and poor scene adaptability, by means of double-layer isolation of the cavity, independent nitrogen
filling in different zones and a double-mode gas
nozzle structure, and has good energy-saving and carbon-reducing benefits.