1. When covering the sunshade net, the management of the sunshade net should be strengthened according to the weather changes and different periods of celery growth. Celery should be covered all day before seedling emergence, sooner or later after seedling emergence, both ends of the net should be exposed to light, and cover at noon when the sun is strong. It can be covered all day in cloudy weather, but it must be covered in time before the rainstorm comes.
2. The width of the shading net can be cut and spliced at will. The method of cutting is to cut off the wire by high heat, because the shading net can melt into a channel after high heat cut off, not loose. The method of splicing is to sew nylon thread on a sewing machine or by hand. Do not tie it with iron or aluminium wire to avoid mechanical breakage and affect the service life of the shading net.