Turmeric is a perennial twisted vine herb that is an important raw material for chemical and pharmaceutical industries. At present, there is no alternative raw material. For a long time, it has been using wild resources for production. In recent years, there has been a serious shortage of yellow ginger and can not meet the needs of industrial production. The artificial cultivation market of yellow ginger is promising. Turmeric artificial cultivation is a cycle for two years, and the yield per mu can reach 2000-3500 KG. 1. Selection: Huang Jiang is a semi-positive plant. It is more like a warm environment, and it is not tolerant to cold. Wild turmeric generally grows in sparse deciduous broad-leaved and evergreen broad-leaved forests and its margins and sparse shrubbery. Therefore, we should choose a well-drained, organic-rich soil, thick soil layer, soil loose and moist, good air permeability Viscous heavy knot soil, waterlogging soil should not be cultivated turmeric, shady slope and canopy thick forestland should not be cultivated turmeric. 2. Seed selection: Ginger is propagated with rhizomes. It is better to use annual tubers than biennial tubers. Seed stems are controllable in the same year from October to March of the following year. Tubers with uniform thickness, no pests, and strong germination power are used. For stems, according to the number of latent buds before planting and the size of the stems, divided into 5--10 cm segments, each with 2 - 3 robust buds (head). Divided good ginger spread cold for 1-2 days, until the wound healed after sowing, or planted with vegetation ash stalk wounded after sowing, mu seed amount 150--200KG. 3, planting: October to the second year can be planted in March, generally the best planted years ago. Combined application of site-based phytofertilizers, mu for rotten pigs, cattle bark 2000-3000KG or chicken and duck manure 1000KG, calcium magnesium phosphate 50KG, imported ternary compound fertilizer 20KG; if there is no organic fertilizer, mu-containing calcium magnesium phosphate 50KG, imported ternary compound Fertilizer 30-40KG as base fertilizer, after soil leveling, according to ridge distance 70CM (including trench 20CM) for ridge, ridge height 20CM, 2 rows per ridge, row spacing 25-30CM in the ridge open two deep 10CM sow ditch, and then Planted by 20CM plant spacing (bud shoots upward), planted with 7CM cover soil. 4. Field management: (1) Top dressing: After planting seedlings, apply 2 thin and quick-effective fertilizers to raise seedlings. Use 10-15% of composted manure urine or mu urea 4-7KG, potassium chloride 4-7KG. In early June after the end of the rainy season, reapply a fertilizer to promote seedling growth and robust, generally about 20KG mu special fertilizer or imported ternary compound fertilizer 20-25KG, later see seedlings and fertilizer. Stop fertilization in mid-to-late October. The second year of fertilization is basically the same as the first year. (2) Cultivating and weeding: We must do a good job of cultivating and weeding, and weeding should be carried out about 3 times a year to ensure that grass shortage does not occur. (3) Stretching seedlings: seedlings grow 20-30CM, with 1.5-2.0M bamboo shoots framed seedlings, 2-3 years for a bamboo grasshopper. 5, mining control and processing: According to laboratory tests, ginger grows as the growth of years, saponin content increased. Therefore, as a commercial turmeric, it is advisable to adopt an acquisition control after 3 years. The control period is from October to April of the second year. The ginger is collected and controlled and the soil is removed. The slices are cut into slices of about 0.5 cm or sliced, dried or Drying can be sold.
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