Recently, it is a good time to plant autumn cabbage. If you want to grow high-yielding autumn cabbage, you must know how to plant some autumn cabbage. Today, Hui Nong.com is here to introduce you to those essential technologies for growing autumn cabbage!
1. Soil preparation and application of base fertilizer
Remove the residual leaves of the former crop before the preparation of the ground. Sprinkle 3-40 thousand kilograms of farmer's fertilizer per hectare, and apply 200-250 kilograms of special compound fertilizer for vegetables. Do not apply raw manure to prevent root burning. After the application of the base fertilizer, the depth of 25-30 cm, after the fine, flatten the land, made a 0.6-meter wide ridge, with the scorpion suppression to help protect the sputum.
2. Seeding at the right time
According to market demand, we must select high-quality, resistant (resistant) disease, high-yield, and storage-resistant varieties. The plant spacing of early-maturing varieties was 60×35-40 cm, and that of mid-late maturing varieties was 60×40-45 cm. Cover soil 1.0-1.2 cm after sowing. The seeding rate per hectare is 2.5-3.0 kg. If there is a plot because the previous crop is not pulled in time, the method of planting after seedling should be adopted, which is usually completed from the end of July to the beginning of August. If the seedling method is adopted, it is 3-5 days earlier than the sowing date of the live cultivation. For seedling transplanting, it is necessary to select a plot with high dryness, good drainage, and no cruciferous vegetables for seedlings. Make sorghum with a width of 1.0-1.5 meters and a length of 8m-10m. Apply the base fertilizer, mix evenly, simmer the surface, pour the bottom water, and dry the seeds. The seeding method is divided into two types: striping and sowing, and it is necessary to make 2-3 seedlings after emergence, so that the nutrient area of ​​the seedlings reaches 6-8 cm square. The seedling period is 20-25 days. After sowing, put a awning on the nursery raft for about 1 meter to protect the rain. Conditional can take seedlings for seedlings.
3. Strengthen field management
When the seedlings "pull cross", the first seedlings were selected, and 4-5 strong seedlings were selected for each seedling; the second seedlings were 4-5 true leaves, and 2-3 strong seedlings were selected for each seedling. When the group is planted, the seedlings are fixed, and each plant is selected to keep one strong seedling. In the case of seedlings and seedlings, it was found that the seedlings were timely replenished. Before the rosette period, the alfalfa was cultivated 2-3 times, from shallow to deep. After the seedlings, it is necessary to cultivate the soil in time.
During the rosette period, the water should be properly controlled for seedlings. Generally, the seedling stage is 7-10 days. The standard of the seedlings is normal growth of the heart leaves, the outer leaves are bright and dark green, the chassis is large, and the leaves are slightly snoring at noon, and can still return to normal in the morning and evening. In the normal year of rain, the soil moisture is better, and seedlings can be taken. Otherwise, in the dry and rainy years, the sandy loam soil with poor water retention should reduce the number of seedling days.
After the seedlings are planted, 50-60 kg of urea is applied per hectare with water. In the early stage of the ball, 120-150 kg of urea and 50-90 kg of potassium sulfate are applied with water. At the same time, in the rosette stage and the ball-forming period, foliar fertilizer such as 0.3% potassium dihydrogen phosphate can be used for foliar topdressing 1-2 times. Quick-acting nitrogen fertilizer should not be used within 20 days before harvest.
It is necessary to know that the soil of the autumn cabbage seedlings and the rosettes should be dry and wet, and the soil during the balling period should be kept moist. The seedling stage of autumn cabbage is in the high temperature period. In case of drought, it is necessary to timely cool down the warm water to prevent root damage and prevent the occurrence of viral diseases, which is beneficial to Miaoquan and Miaozhuang. After the seedlings, watering after the seedlings. If the seedling stage is not dry or poured, the water should be poured every 7-8 days after the pulling period to keep the soil moist and promote the heart, but avoid flooding and prevent the spread of soft rot. Stop watering 7-10 days before harvest.
4. Pest control measures
Downy mildew is treated with 80% dimethomorph water dispersible granules and 25% pyraclostrobin suspension spray; leukoplakia is treated with 70% Antaisheng WP, 40% sulphur suspension spray; The disease was selected by 77% killing wettable powder, 20% thiabend copper suspension spray and rooting control. The aphids were sprayed with 3% acetamiprid emulsifiable concentrate and 10% imidacloprid wettable powder; Plutella xylostella and Pieris rapae were treated with 10% cyanamide sulphide suspension and 150 g/l of indoxacarb suspension.
5. Timely harvest
Harvesting autumn cabbage should be carried out on the principle of “appropriate early harvesting of early maturing varieties, timely harvesting of mid-late maturing varieties, and appropriate late harvesting of stocks in storageâ€. The harvest period is generally in the middle of October, when the heart is 7-8%, the harvest begins. Pay close attention to weather changes and prevent freezing and snow damage. From land preparation, planting, field management, prevention of pests and diseases, harvest, every step must be careful!
The above is the autumn cabbage cultivation technology strategy summarized by Huinong.com. I would like to know more about the vegetable cultivation technology. Please continue to pay attention to the Hui Nong School! Thank you!
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