How to fertilize and water Chinese cabbage
From the perspective of the whole growth period of Chinese cabbage, it has to go through three stages: seedling stage, rosette stage and heart stage. Chinese cabbage absorbs less nutrients at seedling stage, accounting for only 10%, and rosette stage accounts for 30%. During this period, production should control water and fertilizer, especially nitrogen fertilizer, so that Chinese cabbage leaves grow slowly, which is also called squatting seedling stage. The vegetable leaves should not be allowed to grow and stand upright with too much water, but should be made to grow close and flat like the rosette. Only in the heading stage can the leaves be tight, high yield and good quality. Early irrigation and nitrogen application in the rosette stage will cause excessive growth of leaves, large leaves and unsound hearts. Partial application of nitrogen fertilizer, lack of phosphorus and potassium nutrients will cause false heart; Chinese cabbage rosette stage to control water and nitrogen, lay a good foundation for the heart, early watering and nitrogen application will cause false heart.
- Prev
Key points of planting techniques of Chinese cabbage in summer
Symptoms of soft rot of Chinese cabbage: 1. The disease mainly occurs after the heart of Chinese cabbage. Generally invade from the wound at the base of the vegetable gang, forming a water-immersed infiltration area, and then gradually expand, and become light grayish brown, the tissue is sticky, soft and rotten, accompanied by a smelly smell, called "rotten gourd" or "rotten pimple". The sick department can.
- Next
What is the difference of fertilization between lettuce field and cooked vegetable field
Leaf lettuce, also known as lettuce, is a 1-2-year-old herb that can form leaf balls or tender leaves in the genus Asteraceae. Lettuce is rich in vitamins and minerals, so it is easy to obtain pollution-free products without pesticides in the process of cultivation, which is more and more welcomed by consumers, and the planting area is increasing year by year. One.
Related
- Where is it suitable to grow horseradish in China? it is expected to see the middle altitude horseradish in Alishan.
- How to prevent tomato virus disease reasonably? (Control methods included)
- Many people like to plant towel gourd on the balcony. What are the main points of this method and management?
- What crops can chili peppers be mixed with?
- Fertilization techniques and matters needing attention in Tomato
- What are the grafting techniques for peach seedlings in spring?
- Harm and control methods of root swelling disease of Chinese cabbage
- What are the pests of sweet potatoes? How to prevent and cure it?
- Symptoms, causes and Control methods of navel Rot in Tomato
- The cause of "Cucumber rotten bibcock" in Farmers' planting Cucumber and its Control Plan