Colonization
1. Fertilization for soil preparation: Generally, 500-800 kg of quality manure or decomposed chicken manure per acre, 100 kg of superphosphate and 100 kg of wood ash are used as base fertilizer.
2. Planting time: 25 days after sowing, 5 leaves of the seedlings are suitable for planting, and autumn and winter cultivars are cultivated around September 15 and winter and spring cultivars are cultivated around January 30.
3. Density of planting: The plants were planted in large and small rows with a size of 80 cm in large rows, 50 cm in small rows and 30 cm in spacing between plants. The density per mu was 3500 plants.
Field management
1. The temperature adjustment: In the daily average temperature of 4 ~ 16 °C buckle film. After the shed is generally held in the daytime 25 ~ 27 °C, 15 ~ 13 °C at night, then as the temperature decreases, during the day to master 22 ~ 25 °C, 12 ~ 10 °C at night, to prevent plant leggy, in early October the grass cover Insulation and cold protection.
2. Management: Generally do not dry or water, when the fruit of the first inflorescence grows to the size of the egg, the first application of fertilizer can be carried out. Generally, 500 kg of excrement and urine per person per acre of water is added to the water, and another 10 kg is added. Urea. The second and third ear fruit fertilization methods are the same. Look at the seedlings in November to see the sky, no longer watering in December.
3. Tomato flower pollination when the method can be used to replace beeswax or 2.4-d and other hormones to deal with flowers.
4. The pruning method was carried out by single stem pruning method, leaving 3 to 4 ear fruit, 3 to 4 fruit per ear.
Pest Control
Adhere to the principle of biological control, physical prevention and control, supplemented by pharmaceutical control, integrated prevention and control and chemical prevention.
1. Ecological control: Focus on adjusting the temperature inside the shed to create a greenhouse condition suitable for tomato growth but not suitable for pest and disease development.
2. Physical control: Silver-grey reflective film is used to drive maggots, yellow plates are used to attract maggots and whitefly, shade nets and insect nets are stamped to prevent the entry of pests.
3. Biological control: When the average tomato has 0.5 to 1 whitefly in the greenhouse, 2800 heads/mu of Lycoris bees are released, once every 7 to 10 days, for a total of 2 times.
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