High-yield Cultivation Techniques of Southern Alpine Tomato

In the south, the use of alpine summer climate is cool, suitable for tomato growth, and the development of tomato production. This will not only enrich the urban vegetable supply from August to October in summer, but also increase the income of farmers, and should be strongly promoted.
(1) Location selection: The mountain with an altitude of 600 meters above sea level should be easily accessible. For every 100 meters above sea level, the temperature can drop by 0.5-0.6 DEG C. Above 600 meters, the temperature can be reduced by 3-4 DEG C compared to the same latitude plain area. The average temperature in the months from June to September is 25-26°C during the day and 16-17°C during the night, which is exactly suitable for the growth of tomatoes.
(2) Soil selection: Slight acidic soils should be selected. Most of the southern mountains are acidic red and yellow soils. Below pH 5.5, bacterial wilt easily occurs.
(3) Choosing a southeast slope or a southern slope with a sunny area is appropriate. On the west slope, the sun is strong from July to August and it is not suitable for planting.
(4) Varieties: The soil fertility of alpine soils is generally poor, and there are early and low-temperature and rainy effects. It is advisable to use medium and late-maturing varieties with strong growth vigor to use strong rice age or TM-2nv Beijing Zaoxiang hybrid generation.
(5) Sowing and Seedling: The sowing date is determined according to the market needs. The first choice is to supply more than 10 days after the end of the spring to the National Day in order to meet the off-season market supply in summer and autumn. The mid-late and late-maturing seeds can be planted in the early and late April in early April. , Implanted once and colonized after 30-40 days.
(6) Planting density: About 2,500 acres were planted in high mountains and pruned with double stems.
(7) Fertilization: Acid soil PH value of 6 or less, per acre should be applied 50-100 kg of lime to improve the soil, basic fertilizer to 1500-2000 kg base fertilizer 15-20 kg of superphosphate, cake fertilizer 50-100 kg, during the growth of fertilizer 2-3 Secondary manure, the results of topdressing nitrogen fertilizer 2-3 times, urea 15-20 kg.
(8) grass: grass can be drought, grass and mulch.
(9) Prevent pests and diseases: spray 0.4% lime equal amount Bordeaux mixture every 7-10 days during growth period. During the result, if it is harmed by tobacco budworm or cotton bollworm, 3000-4000 times of cypermethrin or 4000-5000 cypermethrin can be sprayed. .

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