Jintie Lock can also be called Kunming Sand Ginseng, Du Nazi, and Earth Ginseng. It is a perennial herb of the genus Dianthus. It is mainly produced in Yunnan and Sichuan. For a long time, due to excessive mining, habitat destruction and poor natural fertility, the number of wild resources in Jintie Lock has dropped sharply. Therefore, in order to ensure the inevitable choice of the effective supply of the gold lock medicine, the introduction and cultivation of the gold iron lock film was carried out, and the cultivation technique is now introduced as follows. 1 Land selection and site preparation Artificially planting gold iron locks, it is necessary to choose sunny slopes with sufficient sunshine and convenient irrigation; the soil is selected to be rich in organic matter and slightly acidic sandy loam. Before the preparation of the ground, the residue of the former crops was removed, and the soil was deeply turned over 30 cm on sunny days, and then exposed for 30 days after deep turning, followed by soil refinement. The diameter of the refinement soil is less than 3cm, and then the width is 120cm, the height is 25~30cm, the groove width is 30~40cm, and a horizontal drainage ditch is opened every 15m. After the cockroaches are properly treated, apply 30t/hm2 of farmyard manure and 750kg/hm2 of calcium fertilizer in the kneading area. After fertilization, the fertilizer and soil are evenly stirred. 2 film A black mulch having a thickness of 0.08 mm and a width of 1.2 m was used to laminate the film on the kneading surface. After the film is coated, a layer of fine soil of 1 to 2 cm thick is uniformly applied to the film. 3 sowing The best sowing period is from March to May. When planting, the seed is mixed with the organic fertilizer 1:100 according to the gold iron lock seed, and planted according to the row spacing of 10cm×10cm. 6-8 seeds were placed in each well at the time of planting, and the seeding amount was 30 kg/hm2. After the seeding is completed, cover with a pine leaf or a sunshade with a sunshade rate of 90% to ensure the seedling rate. 4 Field management 4.1 Water Management During the emergence of Jintie Lock, the soil moisture requirement is high, and the topsoil should be kept moist. About 20 days after sowing, when the gold iron lock grows 3 to 4 pairs of new leaves, the number of watering can be appropriately reduced to prevent root rot caused by excessive moisture, and water is discharged in time on rainy days. 4.2 Fertilization management Jintiesuo fertilization follows the principle of “basic fertilizer, moderate amount of topdressingâ€; after 30 days of emergence, the compound fertilizer diluted by 200 times (15:15:15) 150kg/hm2 is applied, and the leaves are cleaned with water after fertilization; 25~30 days later The second fertilization is carried out by pouring 200 times of potassium dihydrogen phosphate 120kg/hm2 and potassium sulfate 75kg/hm2; after 30 days of the second fertilization, the fertilization type and fertilization amount and method are the same as the second time; On sunny or early morning, it is forbidden to fertilize in high temperature environment to avoid fat damage. 4.3 Field weeding After the gold iron lock emerged, the weed height did not exceed 5 cm, and the first weeding was carried out. When weeding, it is necessary to prevent the roots of the golden iron lock seedlings from being damaged when the weeds are removed, and water is poured once after weeding. 5 Main pest control 5.1 Ground Tiger Harm: The larvae endanger the roots of the golden iron lock, causing the death of young plants in severe cases. Control measures: remove weeds in the field and eliminate eggs; use the tendency of adult tigers to sweet and sour, black light, use black light or sweet and sour liquid to trap; larval stage spray beta-cypermethrin 800 times or kill 800 with enemy Double liquid for prevention and treatment. 5.2 蛴螬 Harm: The larva damages the roots of the gold lock, reducing yield and quality. Control measures: remove the weeds in the field and eliminate the overwintering eggs; spray 40% phoxim emulsifiable concentrate 1000 times solution at the time of onset, or use 80% trichlorfon soluble powder 800 times solution to control the roots. 5.3 Root rot Harm: Mainly harm the roots and rhizomes of the gold iron lock, causing the whole plant to wither and turn yellow to death. Control measures: When the disease occurs, the diseased plants should be removed in time, and 65% of the WP can be used at 1000 times, or 50% of the WP can be sprayed or poured with 1000 times. 5.4 Stem-based rot Harm: Mainly infringe on the base of the stem of the gold iron lock. Control measures: spray with 72% ke WP 600 times solution, or 72% cream urea Mn Zn WP 600 times. 6 harvesting Jin Tie lock can be harvested after sowing and planting for 2 years. When the stems of the golden iron locks on the ground are withered, they choose to dig the rhizomes along the noodles in sunny days. 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