How to water and fertilize the latest autumn cabbage
Autumn is the period of cabbage, when many early planting areas, cabbage has emerged, but in order to manage cabbage, so that its high yield and bumper harvest, watering and fertilization is very important. Each growing period should be watered and fertilized according to the different requirements of the plant, do not carry out blindly in order to achieve high yield, so how to water and fertilize autumn cabbage? Let's take a look.
1. Germination period
Chinese cabbage needs little water during the germination period, but the temperature is high and the soil evaporates fast. if the seedlings are watered with one water after sowing, it is very easy to water the soil again, so it is appropriate to water before or just after sowing. It is generally not necessary to apply fertilizer during the germination period, so as to avoid adverse seed germination and may even lead to seed non-germination.
2. Seedling stage
The root system of cabbage seedlings is shallow, the growth is very small, but the growth rate is fast, so it should be watered in time to replenish water, and should be watered according to Rain Water's situation. In case of serious diseases and insect pests, it is necessary to properly water the number of times to make the seedlings grow slowly and maintain the soil water temperature in a certain period of time to avoid serious seedling diseases and insect pests. Fertilization at the seedling stage generally requires fertilization twice. For the first time, 8-10 kg of ammonium sulfate per mu is applied on both sides of the seedling during the growth of 3-4 true leaves, and timely watering is required after fertilization. For the second time, about 15 kg of ammonium sulfate is applied in trenches on both sides of the cabbage ridge at the fixed seedling stage.
3. Rosette stage
Cabbage grows and grows very fast in the rosette period, so it is necessary to ensure sufficient water to make it grow vigorously. Generally, it is only immediately after topdressing. It is not allowed to water blindly in the later stage. It is best to wait until the soil is dry. In this way, watering can be avoided. At this time, fertilization is still ditching on both sides of the cabbage ridge, generally applying 10 kg of high calcium phosphate and 20 kg of ammonium sulfate per mu, and soil cultivation and watering.
4. Heading period
It takes a long time for cabbage to set balls, which is an important period for the formation of high-quality cabbage, so there is a great demand for fertilizer and water. After chasing the wind before the start of Baoxin, water is watered twice continuously, and then watered every 5-6 days. It should be noted that the soil should always be kept moist during the heading period, and watering should be stopped 5-7 days before harvest to avoid excessive moisture in the leaves and not resistant to storage. Fertilize once in the middle of heading, and apply about 15 kg of ammonium sulfate per mu with water.
The above is the introduction of how to water and fertilize autumn cabbage. I hope it can help you. If you want to know more about it, please follow us.
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