Cultivation in white plastic greenhouses Growing white in plastic greenhouses is a very popular planting method in recent years. So, how to cultivate white is a question that all growers need to seriously consider. You can do a good job in white cultivation and production from the following 8 aspects. Choose varieties that can be grown locally with high yield and high quality, strong powder form, good resistance, fair and smooth skin, thin skin, soft texture, good commercial properties and good economic benefits. Choose the market preferred varieties. Select fields with low terrain, fertile and loose soil, high organic matter content, deep plowing layer, convenient irrigation, good water quality, no industrial waste pollution, and continuous planting of rich white fields.

Select high-quality seedlings and plant them closely and reasonably, and select tree stumps with high pregnancy rate, fat flesh, low knot position, no male and gray grass, low pot node position, and mature, consistent and exquisite trees. Digging rice seedlings in the ancestral temple, 1 hole per acre, planting density 3040 cm, Monong and Honda started planting in early July 1:10, planting density 100-8050 cm, 2 plants with blood sugar, 1500 blood/radish. If the leaves of the official seedlings are too long, cut off the upper leaves in time to reduce the plant's nutrient consumption. A 6-meter-wide plastic greenhouse with 70 centimeters left on the edge of the film was planted with 6 rows. Clear the rice fields, apply basal fertilizer, cut off some fallen leaves from tree stumps on the land with mud, conduct full cleaning, and burn them intensively to reduce the number of overwintering bases of pests and diseases. There are fields with many weeds in Baitian. 5 to 6 days before the shed, put the stagnant water in the Baitian into the shed, use 1kg of homemade 10% super licorice water, and spray 40kg of water.

Build a shed, keep it warm, and carefully manage it to prevent frost around the winter solstice in late December. Baimu is mainly a bamboo frame house, which is 6 meters wide and 1.8-2 meters high. There are pillars in the middle, and the length depends on the field. The film is a 0.08 mm thick, 8 meter wide multi-functional adhesive-free film. The greenhouse is mainly closed and insulated during the year. The temperature changes sharply after the beginning of spring in the second year. It still needs to be closed and insulated at night, and it must be observed frequently during the day. If the weather is usually mild, both sides should be ventilated. When the weather is fine and the temperature in the warehouse exceeds 32°C, the diaphragm and both ends should be exposed for ventilation. Ventilation should also be strengthened during the continuous plum rains, which is beneficial to the mother-in-law and reduces the pregnancy rate of seedlings. Film is usually exposed before and after the Qingming Festival.

The Qiaoqiubai plants grow rapidly after Guanmiao is established. When the plant height is 30 to 40 centimeters, the saplings are cleared in the shed, leaving about 20 strong seedlings per cup, which can reach about 30,000 per acre. . When removing saplings, you can weed, remove weeds from the field, and improve soil permeability. At the same time, the rice field can press the soil roots at the roots of the float to disperse the powder and improve the nutritional status. On the premise of clearing the saplings, apply straw fertilizer in a timely manner according to the seedbed. Generally, 25-30 kg of compound fertilizer is applied to the seedbed. At the end of March, the white color gradually flattens the stems. When 30% of the plants are pregnant, fertilize with leaf-colored hole bridges. Apply 5-6 kg of urea to radish to ensure the nutrients needed after summer white pregnancy and to ensure the whitening of meat fat.