Asparagus is a vegetable with high nutritional value. Many people will grow some food by themselves. What is the cultivation method of high-yield and high-quality asparagus? The following small series introduces the method of asparagus cultivation.
High-yield and high-quality cultivation techniques for asparagus
1, variety selection
Unlike other vegetables, asparagus is a perennial plant that can be harvested continuously for 15 years. Therefore, it is necessary to use a hybrid generation that is resistant to pests and diseases, strong in stress resistance, short in dormancy, good in commodity quality, and high in quality and high yield.
2, nursery
2.1, sowing
90-360 grains per square meter. Asparagus seeds are suitable for germination temperature of 25 ° C ~ 30 ° C. Sowing time is 1 to 2 months in greenhouse seedlings; 2 to 3 months in Yangshuo nursery; seedlings in small arches from late March to late April; open seedlings from late April to mid-August.
2.2, seed treatment
The seeds were soaked with 50% carbendazim 300 times solution (or 75% chlorothalonil wettable powder) for 12 hours; after being cleaned with clear water, soaked in warm water at 25 ° C ~ 30 ° C for 24 hours, changing water 1 or 2 times a day. When the water is changed, the seeds are repeatedly washed, and the mucus, sorghum seeds and impurities on the seeds are removed.
2.3, germination
The soaked seeds are wrapped in a damp cloth and germinated at 25 ° C to 28 ° C. Rinse with water once or twice a day, and 5% to 10% of the seeds can be sown.
2.4, seedbed preparation
Site preparation: 3 to 5 kg of high-quality decomposed organic fertilizer and 20 kg of ternary compound fertilizer per square meter.
For hoeing and sowing: the width is 1.4 meters, the length is not limited, the width is 0.2 meters, the greenhouse is 5 cm × 5 cm, the row spacing is single, the open field is 10 cm × 10 cm, and the ditch is 2 to 3 cm. After sowing, the ditch is covered and the water is immediately poured. Greenhouse impotence, small arch shed seedlings are mulched before sowing, and nutrient sputum (block) seedlings are planted one seed per stalk (block), and the overlying nutrient soil is 1.5 to 2 cm thick.
2.5, seedbed management
(1) Temperature: suitable temperature 15 ° C ~ 25 ° C, sowing to the emergence temperature of 25 ° C ~ 30 ° C, after the emergence of the seedlings until the temperature of 20 ° C ~ 25 ° C before planting, try to warm below 15 ° C, above 35 ° C when the wind Cool down.
(2) Fertilizer and water: The bed soil is kept moist before emergence, and it is wet after emergence. 7 g of potassium dihydrogen phosphate and urea (1:1) were sprayed per square meter every 15 days at a concentration of 0.5%.
3, colonization
3.1, colonization period
Our province is planted in spring from late April to mid-May and autumn from late July to early August.
3.2. Planting density
Ditching and planting, row spacing 1.2 to 1.5 meters, plant spacing 25 to 30 cm, density 1500 ~ 2200 plants / acre.
3.3. Colonization method
The seedlings were planted in the middle of the ditch at a plant spacing of 25 to 30 cm, and the rhizome was 10 cm from the ground. The underground stems are in the same direction as the furrows. They are planted on the day of the seedlings and watered immediately after planting.
3.4. Post-plant management
After planting, check the seedlings and make up the seedlings in time. After planting for 1 month, combine with watering, and apply 5 kg/mu of urea for seedling fertilizer. The compound fertilizer is applied once every other month, and then incremented by 1 kg/mu each time.
During the whole growing season of asparagus, pay attention to cultivating and weeding, combined with cultivating and covering soil several times, covering the soil with a height of 10 cm, and forming a turtle-shaped high ridge.
The above is the cultivation technology of asparagus. If you like to eat asparagus, you can plant it. Asparagus is a very good vegetable. It can be picked for a long time. The most important thing is that it is a very green and healthy vegetable. You can eat it or sell it. It is very good.
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