Datura is the dried flower of the Datura metel L., a medicinal plant known as the Golden Flower, and is commonly known as Nanyang Golden Flower. Antitussive and antitussive, analgesic effects of pain, the seeds, the whole plant can be medicinal. Mainly produced in Jiangsu, Guangdong, Fujian, etc., south of the Yangtze River area is mostly cultivated. (A) Morphological characteristics Annual herb, high 50-150 cm, all near hairless, young branches often four prisms, purplish, stem base lignification, the upper two branches, single leaves alternate; upper often opposite, Leaf blade ovate or broadly ovate apex pointed, bilaterally asymmetrical, entire or undulate, petiolate, simple leaf gum or bifurcation, large, simple, white, sepals 5, persistent, stamens 5 , attached to the corolla tube, pistil 1, stigma rod-shaped, flat triangular fruit capsule, light brown, black seed, kidney-shaped. Flowering from June to August, fruiting from August to October. (B) growth habits Datura strong adaptability, hi warm, moist, sunny environment, afraid of earthworms, the soil requirements are not strict, the general soil can be planted, but the rich humus and calcareous soil as well. Seeds easily germinate, germinate at a suitable temperature of about 15 °C, germination rate of about 40%, from emergence to flowering about 60 days, after the frost withered the ground, the temperature is below 2 °C, the whole plant died, the annual growth period of about 200 days. (III) Cultivation Techniques 1. Choose land, land preparation, sunny, fertile, well-drained land, plough 30 centimeters before winter, apply 2,000 kg of circumfertilizer or soil miscellaneous fertilizer per acre, pound fine leveling, turn it over once more, break The clods were made in one piece and made into 1.5-meter-wide flats. 2. Breeding methods reproduce with seeds. In early April, on the louse, 60 cm and 50 cm apart, a 3-cm deep hole was opened to scatter the seeds, 5-6 pellets per hole, 1 cm soil cover, and slightly pressurize and moisturize. Use about 1 kg per acre. If seedlings are transplanted, they should be transplanted and planted in late May. 3. Field management (1) Weeding, weeding and cultivating tillage, cultivating tillage 2-3 times, cultivating top soil, and cultivating soil at the base of the stem to prevent lodging of stems. (2) Seedlings, Dingmiao In early June, the seedling height 8-10 cm time seedlings, between the weak seedlings, leaving 2 plants per hole, about 15 cm high when the Dingmiao, leaving four plants per hole. (3) Applying 2000 kg of fertilizer per acre after applying top dressing and seedlings, or applying 10 kg of urea and pouring water to the plants. Prosperous growth can be appropriately applied to human or animal manure water or superphosphate topdressing. 4. Disease and Insect Pest Control (1) Black spot disease damages the leaves. Control methods: 1 After harvest, clear the garden, burn the diseased nuclear leaves; 2 Spray 50% TB 1000 or 65% wettable agent 500 before and at the beginning of onset. Doubling, once a week, 3-4 times in a row. (2) The eggplant 28-spot ladybird is damaged by leaves and is prone to hair growth in summer. Control methods: 90% Trichlorfon original drug 800 times spray control; bogey and Solanaceae crop rotation. (3) Locusts were treated with 40% dimethoate emulsion 2000 times. (4) The flowering period for harvesting and processing shall be on and on. It shall be harvested once in the morning, and it shall be better to pick it up when it is in season. Even the pedicle is taken off, dried or dried, or dried by micro-fire. The ratio of 6:1 is better for flowers, dry bodies, no broken, and mildew.
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