The invention discloses a deep space potted
ornamental plant cultivation method and a spray sterilization device. How to
plant healthy and colorful plants in deep land space is very necessary. The method comprises the following steps: selecting an underground
phytotron to simulate a deep
space environment; selecting a plurality of shade-tolerant plants, monitoring
plant growth, and determining proper illumination intensity; disinfecting the substrate, sterilizing and killing insects; plants are planted in flowerpots, and a deep land space
plant landscape is constructed according to proper illumination intensity; in the growth process,
chitosan and
salicylic acid,
chitosan nanoparticles and
erythritol and
chitosan are adopted to conduct spraying treatment on
hedera helix aphids,
monstera deliciosa thrips and jasmine red spiders respectively; when the plants are subjected to plant diseases and
insect pests, a yellow
insect sticking plate is hung, the diseased plants are put into a spraying sterilization device, and flonicamid,
imidacloprid and bifenazate are adopted to spray and kill
hedera helix aphids,
monstera deliciosa thrips and jasmine red spiders. According to the invention, a healthy and stable plant landscape in a deep land space and good air quality can be constructed.