The tomato yield is high, the product is resistant to storage and transportation, and the market sales volume is large, but the tomato cultivation technology is very crucial. The specific cultivation techniques are as follows:
Temperature: The optimum temperature for tomato growth and development is 24°C-26°C. Under the condition of low temperature below 5°C or high temperature above 40°C, tomato will stop growing.
Light: Tomatoes are hi-light crops that are sensitive to light. The light is sufficient, the plants grow robustly, the stems are thick, and the resistance is strong; if the light is insufficient, it can cause leggy, less flowering, falling flowers and falling fruit.
Moisture: Tomatoes are deep-rooted crops that are both drought- and drought-resistant, have better soil drainage, have lower groundwater levels, and must be supplied with even water. Sowing seedlings. 1. Sowing period: high temperatures in summer, weak plant growth, falling flowers, difficulty in fruit setting, severe disease, and easy failure. 2. Seed disinfection: Seed disinfection is an effective measure to reduce the spread of diseases. When disinfecting, use gauze to wrap the seeds and put them in warm water of 50°C (temperature remains unchanged) for 10 minutes or in 10% sodium phosphate solution for 20 minutes, then remove them, rinse with water, and put in warm water at 30°C. Dip for 2-3 hours and remove the shade. 3. Seedling management: In the nursery process, it is necessary to top-dressing, generally combined with watering, drenching uremic water or 0.1% -0.2% of urea water. At the same time, chlorothalonil 600 times solution plus 1000 times solution of dimethoate was sprayed 2-3 times at the seedling stage.
Soil preparation and colonization. Before planting, sufficient base fertilizer can be used. For each mu, 1000 kg of cattle feces and 50-100 kg of superphosphate can be used. After mixing, sprinkle it evenly on the surface and mix it with the soil. Criterion specifications can be used 1.3-1.7 meters Baogou, two lines of plants, spacing 40-50 cm, double dry pruning. It is sunny and can be properly planted in close to 1500-2000 acres. Or can be used alone, spacing of 20-25 cm, 3000 acres of planting.
Field management. 1. Fertilization: Start topdressing within one week after planting, separated every 8-10 days. Each time after top dressing, the amount of urea should not exceed 5 kg per mu. After the 1st fruit is enlarged, appropriate heavy fertilizer is applied. When the 2nd and 3rd fruits are enlarged, more nutrition is required, the top dressing is heavy, the amount of phosphorus and potassium fertilizers is increased, and the top dressing is used to ensure the 4th, 5th and 6th ear fruit. Growing needs. On the basis of applying base fertilizer, the total amount of fertilizer to be used per mu is 50 kg of urea, 70 kg of potassium fertilizer or 100 kg of compound fertilizer and 30 kg of potassium fertilizer. 2. Moisture management: Deep groove sorghum planting, around the open ring Tiangou. When watering, it is better to water the plants one by one, and less water in the fields. If water is to be poured, it should be carried out in the evening, and it is advisable to use horse water. After 1-2 hours in the ditch, drain it to keep the soil moist. 3. Earthing and weeding: Earthing is an indispensable task for growing tomatoes. Generally, it is necessary to cultivate the soil 2-3 times and combine it with weeding and weeding. Weeds can be covered with soil to reduce rooting caused by weeding. 4. Stretching and binding vines: When the tomato grows to a height of 30-40 cm, the stand should be inserted and then tied. 5, pruning thinning sparse fruit: single stem pruning only one trunk, all other growth of the lateral branches removed; double dry pruning in addition to retaining the trunk, and then retain the first inflorescence under the first leafhopper out of the collateral, other side branches are Remove, in general, each branch can leave 5-7 fruit.
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