Pakchoi prefers a cool climate. During the summer planting process, pakchoi is often reduced or even harvested due to sun, drought, and heavy rain. Ingeniously using shade nets to cover planting, cabbage can be safely produced in summer.
Sunshade floating surface coverage
After the cabbage seeds are spread, cover the soil and water, then spread the black shade net on the surface of the cabbage, and immediately remove the shade net after the seedlings are unearthed. The removed sunshade net can be covered on another freshly planted field and reused repeatedly. The advantage of this method is that the seedlings are neat, labor-saving and labor-saving, and can prevent the dead seedlings from being attacked by rainstorms before emergence.
Shading net small arch shed or short flat shed planting
In addition to floating surface covering from the sowing to the emergence stage, a low-flat shed or a small arch shed with a height of 0.8 to 1 m can be placed on the surface after emergence, and the shading net is continuously covered on the shed to make the seedlings Continue to grow under low soil temperature, temperature, unaffected by heavy rain and strong summer light. The sunshade net must be removed 3 to 5 days before harvesting to promote the standard of leaf color and improve its commerciality.
Shading net greenhouse cover planting
The scaffolding in the summer greenhouse can be utilized, and the longitudinal pulling rods on both sides of the shed can be used to pull up the laminating line, and then the shading net is laid on the laminated film line, and then the cabbage is planted. It is also possible to buckle a film on the roof and cover the net on the film. Planting the Chinese cabbage with this “one film and one net†rain awning can better protect the disaster.
In addition to the use of shade nets for planting, the Chinese cabbage should also pay attention to the selection of excellent cabbage varieties with heat resistance and disease resistance, such as Hot You No. 1, Dwarf No. 1, Shanghai Cabbage and Hangzhou Cabbage. In addition, according to the specific conditions of unfavorable climatic conditions in summer, the batch-by-segment live broadcast method is adopted to expand the seeding amount. Generally, 1.5 to 2 kg per 667 square meters of land are used, and the row spacing after seedlings is 6 cm and the plant spacing is 4 cm. At the same time, it is also necessary to choose loam with cool ventilation and good water retention, planting near the water source and convenient irrigation, and master the principle of watering and pouring watering. It is better if it can be sprinkled. Generally, it is harvested for 18 to 25 days, and each 667 square meters of land can produce 1000 to 1500 kilograms of cabbage.
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