Burdock is a two-year-old herb that is used as both a food and medicine. It is wild or cultivated and its seeds reproduce. Its fleshy roots are edible; branches and leaves can be used as fodder; seeds (Chinese medicine called wolfberry fruit or heavy-duty son) and roots can be used as medicine; nature is flat and spicy; there is heat dissipation, Xuanfei gas, swelling and poisoning, gastrointestinal clearance, and reduction. Cholesterol and other effects.
Burdock is wildly distributed in Europe, Siberia, and northeast to southwest China. In recent years, artificial cultivation has been successful in China. The average yield per mu is 2000kg, and the highest is 2500kg. Calculated at the protection price of 1.6 yuan per kilogram, the cost per mu is deducted by 1,000 yuan, net income. Above 2,000 yuan, the economic benefits are considerable. Now we introduce its high-yielding cultivation techniques as follows:
(1) Site preparation: Burdock is a rooted, straight-rooted, asteraceae plant with a root length of 40 to 100 cm. It is suitable for planting in sunny soils, well-drained soils, fertile soils, and fertile soils with a pH of 6.5-7.5. . The specific requirements are: digging a width of 30-40cm in width and a depth of 90-100cm in a north-south cultivation pit according to a 70cm row spacing, and the wall of the pit shall not disturb the soil layer vertically. Mu Shi decomposed organic fertilizer 1500kg, pure nitrogen 4-5kg, phosphorus pentoxide 2-3kg, potassium oxide 3-4kg as the base fertilizer, after mixing soil, fill in the original pit, irrigation preparation and broadcast. ?
(b) sowing?
1, sowing date: April 25 to May 5 is appropriate. ?
2, soaking seed germination: seed before sowing the sun for 1-2 days, the selected seeds are soaked in warm water at 40 °C for 20 minutes, remove and germinate at 25 °C under conditions of germination, buds exposed when white buds sowing.
3, sowing: before planting, the ground into a row of 70cm, 40cm wide, 10-15cm high sorghum, pedestal pedestal in the original cultivation pit, according to 10cm spacing from the pit watering, put 3-4 seeds per pit, pay attention to cover The soil should not be too thick. ?
(III) Field Management
1. Seedlings: After 7 days of general sowing, the seedlings can emerge. After the cotyledon is unfolded, the first time the seedlings are shed, 1-2 true leaves are used for the second time, and 4-5 true leaves are set for the last time. It is necessary to remove plants with poor fertility, excessive exuberance, malformation, roots protruding from the ground and leaf surface.
2. Fertilization: On the basis of sufficient basal fertilizer, Mushi pure nitrogen 16-20kg, phosphorus pentoxide 8-12kg, and potassium oxide 12-16kg. The ditch was applied twice in late June.
3, cultivator soil: combined with top dressing for 2-3 times cultivator soil, in order to facilitate ventilation, weeding and protect the root. When growing soil, note that the growing point cannot be buried in the soil.
4, irrigation and drainage: burdock is not resistant to earthworms, generally keep the soil dry and wet. During the drought, it was poured once a day for 10 days, and the rainy season promptly ruled out water accumulation.
5, pest control: available Bordeaux mixture 1:3:400, 75% of chlorothalonil WP 500-800 times and 15% of Triadimefon 800-1000 times each spray 1, control black spot, Powdery mildew, purple ridge feather disease; mix 50% phoxim EC with wheat bran in the evening and sprinkle in the trench or mix in the soil to control root nematodes, golden needle worms, cockroaches, burdock elephant weevil and so on.
(D) harvest? The time is generally in late September. Harvesting method: cut off the leaves and leaves the petiole 10-20cm long, cut 92cm deep from the side of the root along the side of the root, and grasp the base of the plant and pull it out. Or dig a deep 20cm ditch, draw enough water to pull out, pay attention to preservation, to prepare for processing exports.
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