High-yield planting techniques of Ligusticum chuanxiong

Ligusticum chuanxiong is also known as Xiongzhuo, fragrant fruit, Hu Hu, etc., which belongs to perennial herbs of Umbelliferae, mainly produces Pengxian County, Sichuan Province (now Pengzhou City, where authentic production areas have been transferred). It has been cultivated in Yunnan, Guizhou, Guangxi, Hubei, Jiangxi, Zhejiang, Jiangsu, Shaanxi, Gansu, Inner Mongolia, Hebei and other provinces and regions. Let's take a look at the high-yield planting techniques of Ligusticum chuanxiong.

Growth environment of Ligusticum chuanxiong

Ligusticum chuanxiong likes the mild climate, abundant rainfall, sufficient sunshine and humid environment, but the cultivation stage and storage period require cool climatic conditions. the growing period is 280 to 290 days. Sandy loam with deep soil layer, loose and fertile soil, good drainage, rich organic matter, neutral or slightly acidic sandy loam should be selected.

Propagation methods of Ligusticum chuanxiong

Ligusticum chuanxiong is planted with stem nodes. After withering on the ground every year, Ligusticum chuanxiong is dug out, and the stem nodes above the roots are cut off. There are 1 or 2 buds in each node, and the seed consumption per hectare is about 2250 kg. The large rhizomes below are processed into commodities. The seedlings were planted before they were stung in the cellar the following year. The depth of the planting ditch was 12 cm 16 cm, the row spacing was about 20 cm 25 cm, 2 seedlings were placed in each hole, the bud tip was upward, 6 cm was covered with fine soil, and the base fertilizer was 15000 cm 22500 kg per hectare.

Planting techniques of Ligusticum chuanxiong

1. Land selection and soil preparation: the cultivation of Ligusticum chuanxiong should choose the soil with sunny topography, deep soil layer, good drainage, high fertility, neutral or slightly acidic soil, but not sandy cold sandy soil, yellow mud, white eel mud, wet field and so on. Remove weeds before planting, burn the grass into charcoal to make fertilizer, fine and flat after ploughing the ground. According to the topography and drainage conditions, a bed with a width of 1.6 to 1.8 meters was made.

2. Planting at the right time: the furrow spacing of 33 × 20 cm was planted on the finished border around the first and middle of August, and the ditch depth was 2 cm to 3 cm. At the same time, a row of Ling is planted every 6-10 rows to prepare for seedling replenishment. Ling Zi should be planted shallowly, put flat in the ditch, and the buds should be planted upward and pressed into the soil. Make it not only contact with the soil, but also part of the node plate exposed the soil surface.

3. Intermediate ploughing and weeding: Lingzi was covered with fine compost or soil dung after planting, and the cover was removed after half a month, and weeded every 20 days or so. The lack of seedlings is combined with mid-tillage for seedling replenishment and weeding for the last time, and soil is cultivated around the rhizome to protect the rhizome through the winter.

4. Reasonable topdressing: after planting Ligusticum chuanxiong, topdressing was concentrated for 3 times within 2 months, once every 20 days, and should be applied before Frosts Descent for the last time. The amount of fertilizer applied per mu is 1.2t of farm manure, 30kg of cruller, 100kg of plant ash, 25kg of ammonium sulfate, 40kg of superphosphate and 10kg of potassium sulfate. When the stems and leaves grow rapidly in spring, the amount of fertilizer applied is the same as before.

5. Timely harvest: it is the most suitable to harvest in late May in the second year after planting. Digging prematurely, the underground rhizome is not fully mature and the yield is low. If you dig too late, the rhizome will be ripe and perishable in the ground. Picking and digging should choose a sunny day, dig up the whole plant, knock off the soil on the rhizome, remove the stems and leaves, bake it with a low-fire Kang, put it in a bamboo cage and shake, remove the soil and fibrous roots.

Pest control of Ligusticum chuanxiong

1. Leaf blight: it mostly occurs from May to July, when the disease occurs, the leaves produce brown and irregular spots, and then spread to the whole leaf, resulting in the death of the whole plant leaves. At the initial stage of the disease, 65% Dysen zinc solution was sprayed, or 1000 times solution was sprayed with 50% acetaminophen, or 100 Bordeaux solution was sprayed with 1% ribavirin or 100% Bordeaux. Once every 10 days, 3 or 4 times in a row.

2. Powdery mildew: from late June to July, when the temperature and humidity were high, the disease was serious. First, the disease occurred in the lower leaves, the gray white powder appeared on the leaves and stems, and then gradually spread upward. In the later stage, black spots appeared in the diseased part, and in severe cases, the stems and leaves turned yellow and withered. After harvest, clean up the countryside and burn the diseased leaves of the residual plants. At the initial stage of the disease, 1500 times of 25% triamcinolone acetonide or 1000 times of 50% topiramine were sprayed once every 10 days for 3 times.

3. Rot disease: the inside of the rhizome decayed into yellowish brown, showing a swimming shape, with a special odor and a soft rot. After being damaged in the growing period, the aboveground leaves gradually turned yellow and fell off. Immediately after the occurrence, the diseased plants were removed and burned centrally to prevent spread. Pay attention to drainage, especially in the rainy season, too much Rain Water, poor drainage, serious disease. In the harvest and seed selection, remove the diseased "Fuxiong" and the rotten "Lingzi".

4. Stem node moth: during the breeding stage, the stem node moth of Ligusticum chuanxiong was sprayed with 80% trichlorfon 100 times aqueous solution, and paid attention to the control of the first generation of pre-second instar larvae. In the plain area, soak the seeds for 12 hours after soaking for several days.