Vegetable planting technology

1. The application principles of organic fertilizer and chemical fertilizer should not be reversed.

First, organic fertilizer is given priority to, supplemented by chemical fertilizer, in order to make vegetables with high quality and high yield.

Second, organic fertilizer must be mature, unmature organic fertilizer such as chicken manure, with salts and diseases and insects, such as sodium chloride, Phytophthora, nematode eggs and so on. The application of immature organic fertilizer is easy to pollute the soil and affect the growth of crops.

Third, the application of chemical fertilizer should be avoided and should be reasonably formulated according to the demand proportion of different greenhouse vegetables.

2. The application amount of phosphorus and potassium should not be reversed.

Nitrogen is the key to the formation of vegetable plants, while phosphorus and potassium are the main elements affecting fruit. Among the forming factors of vegetable yield, the ratio of phosphorus and potassium is generally 1 ∶ 2: 3.

In the process of fertilization:

First, we should pay attention to the application of more potash fertilizer and rational combination of nitrogen fertilizer and phosphorus fertilizer, which is especially important after sitting on melons (fruits).

Second, avoid partial application of diammonium phosphate

Third, it is necessary to apply biological fertilizers reasonably to regulate and control the supply of nutrients.

3. The order of soil moisture watering and transplanting should not be reversed.

Some vegetable farmers have reversed the order of watering and transplanting vegetable seedlings, resulting in the phenomenon of dead seedlings.

For example, many vegetable farmers first spread organic fertilizer in the greenhouse, then apply chemical fertilizer, and then plough, flatten and plant vegetable seedlings, and then water them. In this way, it is easy to make the seedling root lose water, and it is easy to cause root burning or ammonia poisoning.

If the fertilizer is watered first, it is not easy to burn roots and gas damage after the fertilizer is dissolved and diluted by water. Therefore, it is suggested that the soil moisture should be watered first, then the seedlings should be planted, and then the roots should be irrigated with amino acid and humic acid fertilizer solution, once every 10 days and 3 times continuously.

4. the order of prevention and control of diseases and insect pests, nutrition regulation and watering should not be reversed.

If watering is the first, and pest control and nutrition control are later, on the one hand, the vegetative growth is excessive, the reproductive growth is insufficient, the light ones are long internodes, the leaves are thin, the stems are thin, and the heavy ones are falling flowers and fruits.

On the other hand, the increase of humidity in the shed after watering will inevitably accelerate the reproduction of bacteria such as Phytophthora, Pythium and downy mildew, and aggravate the disease.

Therefore, it is recommended to first use drugs to prevent diseases and insect pests, use inhibitors to regulate growth, and then water and fertilize.

For these vegetable planting techniques, we all have video lessons for teachers. Farmers who want more vegetable and fruit planting techniques can directly add Wechat: 480945716.

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