1. Substrate: lettuce will grow better if it is planted in the soil with slight acidity. Should choose the good drainage, loose soil, its root is shallower, absorption capacity is weaker, so can use sandy loam planting.
2. Light: lettuce is a plant that likes to be cold and overcast. It can't stand high temperature. But also need sunlight, and to ensure good ventilation, long-term notes lead to long.
3. Temperature: the temperature can be kept at about 15 ℃ - 20 ℃ during the breeding period. If the temperature is too high, it needs to be cooled.
4. Water content: the lettuce should be watered not dry or wet at the early stage of growth, and sufficient water should be provided at the later stage. If lack of water will lead to the aging and bitter taste of the stem part, wait until the soil is dry and then water it properly.
1. Sowing: lettuce can be planted in spring. Put its seeds on the soil and cover it with a film.
2. Winter: lettuce can't bear the low temperature. If it is cultivated in winter, it's better to put fertilizer in the greenhouse.
1. Virus disease: lettuce will flower and leaf after being infected. It needs to be treated with a 1000 fold solution of 50% carbendazim. It needs to be sprayed about 4 times every other week.
2, aphids: use 20% viruses A per catty add water 500 Jin spray, can not be used in the case of sun exposure, should be cool after spraying, cloudy days can be used at any time.
1. Whether it can be planted: it can be planted, with wide adaptability and planting range. To choose fertile soil that can be drained and irrigated, the temperature should be controlled at the most suitable temperature for lettuce growth.
2. Whether it is poisonous: lettuce is not poisonous and belongs to the category of vegetables, so it will not be harmful to human beings.
