The vegetables produced by the soilless cultivation technology have higher safety and fewer diseases and insect pests. They are truly “green foods†and are very popular with the market. Recently, when the reporter visited the Fangzi District of Weifang City, he encountered Zhang Wenliang, who used soilless cultivation to produce celery. So, how to carry out three-dimensional soilless cultivation of celery?
1. Preparation and installation of facilities. On the upper and lower air outlets of the sheds, pest control nets were hung. The steel, wood, and bamboo rafts were all available for cultivation. The width was 35-40 cm. The distance between shelves was 80-85 cm. The height of each floor was 65 cm. After the racks are installed, drip irrigation belts are placed in the cultivation tanks to connect the water belts to the reservoirs. Each shelf is equipped with a main switch, and each floor is equipped with a water distribution switch and two drip irrigation belts. Generally, 2 cm holes are used to tie the holes to ensure even spraying.
2. The preparation of the matrix. The matrix was adjusted in proportion. 10 kg of disinfected chicken manure and 5 kg of bean cake were mixed into every organic rice matrix of the all-organic type; 7 kg of chicken manure and 3 kg of special fertilizer were added to the organic-inorganic matrix per cubic meter of the substrate. A 5 cm thick stone is laid in the trough and the stone is covered with a braid, after which the mixed matrix is ​​placed in a prepared trough, flattened, and finally drenched with the matrix of the trough. After the water seepage, cover the film for 10-15 days to fully decompose the fertilizer. The celery is planted in the trough, and 30 plants are planted in each trough, which is divided into three rows for cultivation.
3. Management after planting. To promote mild seedlings, it is necessary to keep the substrate moist and pour 2 times of water in 7 days. Celery hi water, sunny days should be poured enough water to tank bottom water is appropriate, the winter can be appropriate reduction. Control the daytime temperature at 16-28°C and nighttime at 6-10°C. In addition, in the cultivation of celery, ozone sterilizers or UV sterilizers are usually used for sterilization, and the air outlets are sealed with insect nets to prevent pests from spreading.
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