Efficient cultivation of asparagus

Asparagus is an alias of asparagus, mainly stalks. The taste is fragrant, delicious, and has special medical effects. Its high efficiency cultivation method is as follows. First, nursery and transplanting 1. Seedling techniques Asparagus sowing time is generally from September to October. South of the Yangtze River, sheltered from the wind, sandy lands rich in humus are used as seedbeds. The soil should not be too deep to facilitate lifting. Apply 4 to 5 tons per hect of glutinous manure, and 50 kilograms of superphosphate, and then plough the stalks to form a hoe. The hoe should be 2 to 3 meters wide. Before sowing, soak in warm water of 25°C to 30°C, remove the wax on the seed coat, and soak for 3 to 4 days. The soaked seeds are then placed in an incubator or primed with a damp cloth. When 10% to 20% of the seeds are budded, the seeds can be sowed on the seedbed. The sowing rate per acre is 8 to 10 kilograms, and the seeding volume per acre is about 500 grams. 2. Seedbed management autumn seedbeds Because the bamboo shoots are still young, and some have not yet formed underground stems and fleshy roots, there is a danger of freezing when wintering occurs. The following measures must be taken to manage: 1. Set up the arch membrane so that the temperature within the membrane remains at 25 Around °C, the seedlings were encouraged to continue tillering to form underground stems and fleshy roots. Remove film and cool at high temperatures on sunny days and close the membrane at 3 pm. 2 In addition to the net weeds before cover film, loose topsoil, leaching a thin human excrement or urea. From 311 months to early December, 2 cm of soil was finely soiled to increase the temperature and prevent freezing of the soil. 5 After warming the spring, timely fertilization to raise seedlings. When each seedling has 2 to 3 ramets and the maximum bred height is 40 to 50 cm, the seedlings can be transplanted. 3. Transplanting autumn nursery is usually transplanted in the spring of April of the following year. It is necessary to choose a land with convenient transportation, adequate fertilizer sources, deep loose soil, and convenient drainage and irrigation. After the land is selected, deepen the ridge and reapply the farmyard fertilizer as soon as possible.畦 should be parallel to the wind direction in order to facilitate ventilation and prevent disease. After picking up, raise the seedlings, first wet the seedbed with water, turn the soil 30 centimeters, and dig up the seedlings with roots to keep the root system as far as possible. From 7 to 10 days before the seedlings, a 1000 to 1500-fold thiophanate solution was sprayed. The seedlings were planted on the same day. If it cannot be planted on the same day, wet soil and wet grass should be used to protect the root system. Selected plant tall, thick roots, underground scale shoots and more seedling colonization. White asparagus spacing is about 180 centimeters and the spacing between the rows is 30 to 40 centimeters. The green asparagus spacing is 120 to 150 cm and the spacing is 30 cm. Colonization trenches are 50 to 60 cm wide and 30 cm deep. Depth of planting seedlings, cohesive soil should be shallow, about 12 cm; sandy soil is a little deep, 15 cm is better. When planting, the scale shoots of the underground stems are oriented in the same direction and arranged in a straight line, so that the pumping stems are concentrated in the alfalfa to facilitate earth-cultivation and harvesting. The fleshy roots of the seedlings are evenly stretched around, then the cover soil is 3 to 5 centimeters, covering the root crown with a little more photorealism, and then drenching the faecal water to stabilize the seedlings. After the seedlings have survived, combine topdressing with topdressing and cover the soil twice, covering 3 to 5 centimeters at a time, so that the root canopies are buried 10 to 15 centimeters below the soil. 2. Daejeon Management After asparagus is transplanted into Daejeon, the following management work should be done in the spring and summer. 1. After cultivating and weeding for 1 to 2 years, because the plants are still small, soybeans, peanuts, broad beans and other crops can be planted between rows, and weeding and weeding can be used for intercropping. 2. After the fertilization and water management is planted, when the stem height is 10 to 15 cm, a quick-acting fertilizer or urea can be used to raise the seedlings. From June to July, the plant growth condition is top dressing 2 to 3 times. After the fall, the plants enter the stage of autumn hair. Each mus should apply 20 kg of urea, 2,000 kg of mature manure, 30 g of superphosphate or 30 kg of triphosphorus to promote the growth and development of young stems. Adult plants entering the harvesting year should be composted with 4,000 to 5,000 kilograms of urea, 20 to 25 kilograms of urea, 30 kilograms of phosphate fertilizer and 20 kilograms of potash fertilizer per acre. After August, the plants entered the prosperous period in the autumn, and they can combine cultivating loose soil and applying fertilizer in autumn. Apply 1500 kg of manure, 15 kg of phosphate and 15 kg of potash to promote the growth of autumn stems, and lay the foundation for the harvest of tender stems in the following year.

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