1, timely planting
Because the glass lettuce is resistant to heat and heat, it must be kept away from the hot season or be cooled. Guangzhou is planted from August to March of the following year, and other areas are planted in accordance with the local climatic conditions. Glass lettuce is about 25 days old, and 4-6 true leaves can be planted with a spacing of 1418 cm. Planting soil applied per acre organic fertilizer 4000-5000 kg, superphosphate 20 kg, or compound fertilizer 50 kg, should be planted with soil mulching, timely planting water, planting depth to bury the land is appropriate, can not be buried leaf.
2, field management
Lettuce needs more fertilizer, should be applied more frequently, after 5-6 days after planting, catch a small amount of available nitrogen fertilizer, 15-20 days after the mu compound fertilizer 15-20 kg, 25-30 days after the 10-15 kg compound fertilizer, but in No manure can be used as top dressing in the later period. After planting, the amount of water required is large. The soil should be watered according to the weather after the seedlings are slowly growing. The soil moisture should be watered in a timely manner. Normally it should be 5-7 days. Water should not be controlled in the middle and later stages. The greenhouse humidity should be controlled within 5 days before harvesting. To control watering.
3, pest control
Lettuce mainly includes sclerotinia, soft rot, and locust infestation. We must do a good job in idyllic cleanliness, choose disease-resistant varieties, start from pollution-free cultivation and management, and do a good job of prevention. Aphids are more harmful in autumn and winter and spring, can be used 40% Leko cream 600-800 times the liquid, or 50% Tuo fog 2000-3000 times liquid spray. Sclerotinia often occurs in 2-3 months, and can be sprayed with 5% quick-inking WP 1000 times or 50% acetaminophen WP 1000-1500 times. Soft rot occurs easily in high temperature and rainy months. It can be used 47% Garnett WP 1000 times, or 77% WP can be sprayed 500 times, etc., and stop using drugs 15 days before harvesting.
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