1, land selection and land preparation: Cangzhu planting selection of deep soil, well-drained, loose and fertile, sunny loam, sandy loam or humus loam as a bed, mu 2000 kg of farmyard fertilizer, the general use of high-bed technology of large ridges.
2, between the seedlings set: Cangzhu direct seedling height 5 ~ 6 cm time seedlings, seedlings 10 ~ 15 cm high according to the 15 ~ 20 cm spacing, row spacing of 25 cm set, hole sowing each hole to stay in the shape of the seedling 2 ~ 3, transplanting the number of seedlings per acre is generally in the 12,000 ~ 15,000 plants.
3, plowing and weeding: Cangzhu seedlings should be diligent weeding and appropriate shallow loosening of the soil, transplanting should be carried out 3 to 4 times a year plowing and weeding, usually loosening of the soil every two months, can be cultivated at the same time as the fertilizer.
4, timely watering: Cangzhu before and after the emergence of seedlings should often keep the soil moist in order to facilitate the emergence of seedlings and seedling growth, the soil thawed in early spring immediately after watering to protect the seedlings, drought and dry soil should be watered in a timely manner, the general growth of plants no longer watered.
5, reasonable fertilizer: Cangzhu seedlings per mu of Bika water-soluble fertilizer + microbial fungicide 5 kg, in October in the rows of ditching after the application of rotted stable fertilizer or compost, watering after application of mulch.
6, buds and seeds: Cangzhu commercial field in the bud in time to remove the buds, so that nutrients are concentrated for underground rhizome growth. Staying in the seed field to choose loose and fertile land, robust and disease-free seed planting, appropriate flower thinning and bud thinning, cultivate good seedling.
7, timely harvest: Cangzhu 3 ~ 4 years after sowing or transplanted 2 ~ 3 years after the harvest, spring or autumn 10 ~ November on the ground after the stem and leaves dry, choose a sunny day to dig the rhizomes, the digging rhizomes shake off the soil, remove the stump after sun-drying or drying, knocked off the fibrous roots can be.