How to grow the latest purple cabbage

Cabbage is a very common vegetable, but purple cabbage is still relatively rare in the market. Purple cabbage is a new cabbage vegetable introduced from abroad, also known as purple cabbage. Now there are many places that try to plant purple cabbage successfully. How to plant purple cabbage? The following is the planting method of purple cabbage that Xiaobian wants to share with you. Let's find out together.

1, geographical selection

Purple cabbage is more suitable for survival in a relatively mild climate, it has a certain cold resistance, but also can withstand a certain temperature, but the minimum temperature of planting can not be lower than five to eight degrees, the highest temperature can not be higher than 35 degrees, so this is why purple cabbage is relatively rare on the market. Then we must consider these problems when choosing planting land, choose to plant in places where the temperature difference changes are relatively small, planting land should be relatively flat, fertile, convenient for drainage and irrigation, and at the same time, it should be in places where transportation is convenient.

2. Sowing seedlings

Purple cabbage is generally sown in August to September of each year. Of course, the temperature of the planting ground has a great relationship during this period, so the sowing time can be arranged reasonably according to the temperature. At the same time, in a few areas, it can be sown around March of each year. Purple cabbage planting is usually the need to first seedling and then transplant planting, and the seedbed terrain should be higher, and then the soil should be fine, before sowing to irrigate the seedbed, so conducive to seed germination, if worried about the temperature is too low, you can finally cover a layer of plastic film to carry out heat preservation.

3. Seedling management

Purple cabbage will emerge about five days after sowing. If there is a mulch film at the time of sowing, it is necessary to remove the mulch film in time, and then check the growth of purple cabbage seedlings. If the soil on the seedbed is relatively dry, it is necessary to supplement water in time, which is conducive to the growth of purple cabbage seedlings. At the same time, we also need to check the growth of weeds in the seedbed. At the same time, remove weeds by hand, so as not to affect the growth and development of seedlings.

4. Reasonable close planting

Generally, purple cabbage seedlings can basically grow five or six true leaves in about ten days. At this time, we can transplant them. Then, before the next time, we need to prepare the planting land, try our best to complete the competition, fill the depressed places in the field with soil, then sprinkle sufficient fertilizer, and then make ridges and furrows for planting. Generally, it is guaranteed that two thousand purple cabbage plants can be planted per mu. Therefore, the best planting interval is 60 cm between rows and 50 cm between plants. At the same time, plant spacing can be adjusted according to the fertility of the soil.

5. Field management

After planting, the temperature in the field should be kept at about 15 to 20 degrees, so as to ensure the normal growth of purple cabbage, followed by timely watering, which is conducive to the growth of purple cabbage roots. Since the growth of purple cabbage requires a large amount of nutrients, it is necessary to see you at least three to four times in addition to the treatment of base fertilizer. Organic fertilizer, nitrogen fertilizer and excrement and urine water can be used to promote its growth, but when it is covered, it is necessary to add some potassium fertilizer in an appropriate amount. At the same time, it is necessary to avoid calcium deficiency in soil and supplement calcium-containing fertilizer in an appropriate amount. Fertilization can be combined with cultivation and watering each time, which can promote nutrient absorption.

6, pest control

The most common diseases of purple cabbage are black rot and soft rot. These two diseases are fungal infectious diseases caused by improper water management in the field, which seriously affect the quality of purple cabbage. Therefore, we can use neophytomycin to treat them. Sometimes downy mildew and sclerotinia sclerotiorum appear. These two diseases are mainly caused by high temperature and rainy summer. Chlorothalonil and sclerotonin can be used respectively to treat them. Finally, there will be some pests that harm purple cabbage leaves, such as aphids and cabbage pests, which can be controlled by using fenvalerate 3500 times solution.