A lot of friends ask
When do tomatoes grow better
And about tomato cultivation methods and attention
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Timing of cultivation
Spring: the field is usually grown after nightfall (the temperature is stable at more than 10°c), and much of north china is in mid-april, with the south moving up to march。
Autumn: the northern autumn has to be bred at the end of the summer (june-july) and warm areas in the south can be sowed until august-september, avoiding high temperature and strong light。
Facility planting: beds/heathouses can be planted earlier or later, e. G., early spring 2-3 months in the north and july-8 months in autumn and winter。
Ii. Cultivation methods
1. Selection and breeding
1 selection: heated/cool-resistant varieties based on seasons (e. G., “photnut tomato” in spring and “autumn extension” series in autumn)。
2 drumbs: seeds are immersed for 15 minutes with 55°c warm water, and are taken out and wrapped in wet gauze, in 25-30°c incubators, and then seeded。
3 cultivated seedlings: with seedlings or nutrients, with a base of decayed soil + cylindrical + pearl rock (3:1:1), with a cover of 0. 5 cm, with a evaporation of the lid, and with ventilation after seeding。
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2. Landing
Soil: pre-selection plots of non-egg crops (e. G., beans, melons) with 25-30 cm deep cultivation and 3,000-5,000 kg per acre application of decomposition organic fertilizer + 50 kg per phosphate + 30 kg potassium sulfate。
(b) plantation: in the afternoon of the day, the seedlings are grown from 30 to 40 days (4 to 5 real leaves), when the seedlings are established, and the soil is laid on the same level as the seedlings。
3. Field management
1 fertilizer management:
After planting, five to seven days of steady seedling water, the water is then controlled (to the first sprouts)。
The result period is watered every 7 to 10 days to maintain soil humidity; high potassium compound fertilizer (15 - 20 kg per acre) is followed during the high oscillation period, which can be combined with the application of potassium phosphate on the leaves。
2 plant adjustments:
Whole branch: single whole branch (suitable for hatching) or double whole branch (retention of the main tuber + lower side of the first bouquet) and timely removal of the remaining side buds。
3 chickens tied to chickens/cows: set up or hanged with ropes to keep the plant growing and improve ventilation。
• plumbing fruit: the first bouquet can be removed and the fall avoided; three or four healthy fruit per ear, deformed and small fruit can be removed in time。
Iii. Notes
1. Temperature and light
Temperatures: 20-28°c during the day, 15-18°c at night; winter care to keep temperature warm (below 10°c to increase temperature) and weather cover during high summer temperatures (over 35°c easy to fall flowers)。
Light: ensures 6-8 hours of light per day, and manual light is required when the light is insufficient (especially in winter huts)。
2. Pest management
Disease 1:
Premature/late disease: periodic application of dyson manganese zinc (preventive) and use of alkyl or esters in the early stages of the disease。
Plasmosis: control of humidity, removal of bouquets and spraying of corrosive or fungi。
Virus disease: prevention of aphids (transmission media) in a timely manner, use of hydrochloric acid + zinc fertilizer in the early stages of the disease。
2 pests:
Aphids/black lice: booby-trapped with cedar or sprayed with aphids, aphids。
Cotton bellworms/smokeworms: artificial removal of ovarians, larvae use of chlorinated phenylamide or bromethrin。
3. Other details
Weeding in china: two or three shallow tillages after planting, preventing soil slabing and reducing weed competition。
Timing of harvest: when the fruit is completely coloured (red curing period), it can be collected during the white curing period if transported over long distances (sweet red fruit shoulder)。
Rotation: avoid association, two to three years rotation with non-gay crops (e. G., maize, beans) to reduce endemic diseases。
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Key tips: the climate varies widely from region to region and needs to be adapted to local actual planting times and management patterns, and facilities are flexible to control temperature and humidity and increase yields。
