Lettuce is one of the common green leafy vegetables in people's daily life. Its appearance resembles lettuce, so it is also called lettuce. Lettuce is named after raw food, and lettuce is rich in dietary fiber and trace elements such as calcium, iron and zinc. It is also crispy and delicious in eating taste, and is popular among the public. Coupled with the low planting requirements, many people choose sheds or homes. So what are the planting techniques in the process of growing lettuce? What is the prospect of planting? Let’s take a look at it.
Lettuce cultivation techniques
1. Seedbed preparation. The seedbed is to be ploughed and soiled, and agricultural fertilizer is applied to ensure that the soil of the seedbed is fine and nutritious.
2, soaking seeds and germination. The lettuce seeds are placed in a wet gauze belt and soaked in water. The duration of soaking seeds is about 3 to 4 hours, and the water temperature is generally 20 ° C. After soaking the seeds, gently rinse and drain the water, and bag and germination.
3. Seeding and seedlings. Before sowing, it is necessary to irrigate the seedbed and spray the appropriate dimethoate solution to prevent the occurrence of pests. Seeding is then carried out according to the sowing criteria, ie 1 gram of lettuce seeds are spread per square meter of seedbed. Finally, it covers the fine soil and creates a good growing environment for lettuce seeds. When the seedlings are unearthed, these covers should be removed in time, and the temperature must be strictly controlled after emergence (15~20 °C), and the supplement of water is also essential.
4. Planting management. When the seedling age is about one month, the lettuce seedlings can be planted. When planting, it is necessary to pay attention to the stable seedlings, and at the same time watering the ditch to provide the necessary water.
5. Field management. The management of the field is the daily work of watering, topdressing and weeding, and it is usually watered once every 5-7 days. It should be noted that the top dressing should be a compound fertilizer such as nitrogen and phosphorus, and it is not possible to topdress in the early stage.
6. Pest control. The main pests and diseases of lettuce include lettuce powdery mildew, lettuce downy mildew, etc., and pests have white meal, etc. Therefore, in the process of prevention and treatment, it is necessary to deal with the actual disease conditions. For example, lettuce powdery mildew can be sprayed with 50% benomyl WP. 1000 times liquid, 40% Fuxing emulsifiable concentrate 7000 times liquid for prevention and treatment work.
Lettuce planting prospects
The first thing that can be determined is that the market demand for lettuce is very high, and it also represents a good prospect for the cultivation of lettuce. Plus lettuce is easy to grow, and the investment cost is low. It can be harvested and sold in about 90 days. According to the current market conditions, the net profit of a mu of lettuce land is probably around 6,000 yuan. Although the market is better, but the number of growers is relatively high, so the competition is very fierce. It is recommended that friends who want to invest in lettuce cultivation should first do a risk assessment and learn professional planting techniques to ensure the stability of their income.
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