How is the “King of Vegetables†planted? Asparagus cultivation technology
On the land of Majiaqiao Village in Tengchong County, Jiangsu Province, you can see the same vision of green oil and wild grass. In fact, this is not a “wild grassâ€, but a vegetable grown by the farmer Yao Yao. This vegetable makes him millions of years. However, because of the 1,000 mu of vegetables he planted, the yield per mu was as high as 15,000 yuan, and he successfully provided 500 jobs for local villagers, so that the local people can gather their pockets, and at the same time, many villagers who go out to work will return home. Let the peasant Yao Yao's millions of vegetables be called "asparagus." Asparagus enjoys the reputation of "king of vegetables" in the international market. The price is not too low, and the price can be sold to 30 yuan. The white unfinished "asparagus" is called white bamboo shoots. After being unearthed, it is green and called green bamboo shoots. The growth and development of asparagus is fast, the garden is early, the production is early, and the yield in the early years is high. However, there are disadvantages such as low emergence rate, large seed amount, difficult management in seedling stage, easy breeding of weeds, shallow distribution of roots and easy lodging of plants, so farmers have high returns, but the investment is also large. Asparagus is sold in the market with a kind of green and white. In fact, as long as it shines into the sun, it will turn into green asparagus. If it is buried in the soil or shields the sunlight, it will make the color of the asparagus white. Asparagus is an upright herb that can reach up to 1 meter. The root is 2-3 mm thick. The stem is smooth, the upper part is often prone in the later stage, and the branch is weak. Leafy branches are clustered every 3-6. Asparagus contains vitamin B and vitamin A. It can supplement the amino acids and other nutrients needed by the human body. Regular consumption of asparagus can make the body healthy and enhance its immunity. Eating green in the country is relatively complicated. It is used to cook ingredients. It is very simple to eat asparagus abroad. Directly steamed asparagus can be eaten with soy sauce. Asparagus cultivation technology: 1. Seed treatment: soak for 3 to 5 days with warm water at 25 ° C ~ 30 ° C before sowing, change the water 1 or 2 times a day, wait for the seeds to absorb enough water to remove, mix fine sand or vermiculite, put in the container, cover Wet towel, placed under the condition of 25 ~ 30 °C to germination, flipping twice a day, after 5 to 8 days of whitening can be sown. 2. Soil selection: Choose a planting area with low groundwater level, loose soil, good aeration, deep soil layer and good drainage, and choose to have certain water retention and fertility, soil organic matter content above 35g/kg, pH value 5.8~6.7. Sandy loam or loam is appropriate. Try not to choose the plot where the former is a vegetable of the solanaceous vegetables. 3. Soil preparation and fertilization: deep ploughing 20 to 25 cm ridges, 3000 kg of farmyard manure per mu, plus 25 kg of ternary compound fertilizer for base fertilizer. Ridge width 1.2 to 1.4 m. 3, colonization method. The plant spacing is 30-40 cm. The planting ditch is excavated with iron shovel. The depth is 30 cm and the width is 30-40 cm. In the ditch, the ternary compound fertilizer is 25 kg and the organic fertilizer is 1500 kg. The mixture is evenly mixed into the ditch and then sprinkled into 10 cm. Thick topsoil, the center of the ditch is slightly high, put the graded bamboo shoots into the ditch, one plant per hole of the strong seedlings, and two plants per hole of the weak seedlings. The roots are extended to the surrounding, and the buds are in the same direction, lined up in a straight line. It is convenient to manage the soil and harvest. Hold the seedlings in one hand, first cover a small amount of soil and compact it, then cover the soil with 4~5 cm, pour the water, and cover the soil 1~2 cm after the water seeps to prevent the knot. And water evaporation, 3 to 4 days after transplanting, check the seedlings and plant in time to prevent lack of seedlings. 4. Harvesting time: Generally harvested in mid-May, the same in each year. Green asparagus requires dark green, fresh and tidy, and the bamboo shoots are tightly closed and not lost. The bamboo shoots are not bent, no deformities, no insects. The eclipse is harvested at 9 to 11 am. 5. Harvesting method: Use a special stainless steel knife to cut the tender stem neatly, do not leave sorghum in the stem, put it in the basket and cover it with a wet towel, put it in a cool place to prevent the running water from aging. The deformed, residual branches, and weakly branched disease plants should be cut off in time, and each plant should have 1 or 2 healthy stems for photosynthesis. When the height reaches 70 cm, the heart is topped and the plant height is controlled. 6. Pest control: The main diseases of asparagus include stem blight, brown spot, sclerotinia, root rot, blight, rust and so on. Here are the prevention and control measures for stem blight. Stem blight, in the onset, on the main stem 30 cm from the ground, infiltrating brown spots, and then become light blue to taupe, and at the same time expanded into a prismatic shape, but most lesions are connected into a strip. The edge of the lesion is reddish-brown, and the middle part of the lesion is slightly grayish brown with a small black dot on the top. The branches are easy to break or fall, and the inside of the stem is grayish white and rough, so that it is dead. Control method: Choose a place with high dryness and good drainage. Clean the pastoral, cut off the diseased stems, pour or bury them deeply. The field covers the mulch and controls the nitrogen fertilizer to prevent excessive growth. Chemical control. In the early stage of the disease, 70% methyl thiophanate 800-1000 times solution, 1:1:240 Bordeaux mixture; 50% dexamethasone 1000 times solution every 7 to 10 days, even spray 2 to 3 times. Asparagus pests mainly include underground pests such as cockroaches, cockroaches, species of flies and golden worms. You can sprinkle 25% trichlorfon powder plus 5 times fine soil in the field; or mix it with 30% trichlorfon 30 times on wheat or bean cake, and withdraw it in the field to make bait; spray 80 when fertilizing % of the dichlorvos emulsion 800 times liquid and other methods to prevent and control. Outdoor First Aid Kit used for treatment when you are outside.It is more portable and has various contents in the kit. 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