The cultivation method of cat claw grass from wild to domestic species

Ranunculus ternatus Thunb. is a dry root tuber of Ranuneus ternatus Thunb. Its nature is sweet, spicy and warm. Return to liver and lung meridians. It has the functions of detoxification and resolving masses, and is mainly used for scrofula, tuberculosis, lymph node tuberculosis, pharyngitis, malaria and other diseases. The original plants are perennial herbs. At present, the family species resources are mainly concentrated in Huaibin, Xinyang, Anhui and Xuancheng. Modern pharmacological and clinical studies have shown that cat claw grass and its preparations have certain curative effects on pulmonary tuberculosis, lymphoid tuberculosis, various cancers and lymphoma. Because of its wide curative effect, large demand and high market price, it has caused excessive exploitation of wild resources in the original producing areas, resulting in the depletion of wild resources, and has become one of the scarce medicinal materials for national key development. Therefore, to carry out wild imitation cultivation of cat claw grass can not only protect this rare medicinal material variety, but also obtain higher income. The following is the introduction of high benefit cultivation technology of cat claw grass imitating wild:

(i) Growth characteristics

Cat claw grass is an annual or perennial herb, the plant is as high as 5~8 cm, the root meat is clustered, nearly spindle shape, brown or nearly black, the shape is like cat claw, so it is called cat claw grass. Like wet, semi-shaded environment, cold resistance, poor resistance, lax soil requirements, strong adaptability, both in the north and south of China can be planted.

(ii) Cultivation techniques

1. Land selection and preparation

After selecting the land according to the growth habit, plough 20cm, apply 2000kg manure, 25kg calcium superphosphate and 25kg cake fertilizer per mu in combination with ploughing, rake the fine floor evenly, and plough once more before planting to make a high ridge with a width of 1.5m, and the spacing between the ridges is about 30cm.

2. Propagation method: In production, plant division is the main method, young seedling transplanting method is adopted, and seed propagation can also be used.

(1)Plant propagation seedlings prepared before the seedbed, generally in the courtyard, land or basket basin can be, depending on the number of seedlings. Seedbed soil should be fertile and loose, each plant on the sub-plant one by one broken off, according to the plant spacing of 1 cm ×3 cm neatly arranged on the seedbed, covered with manure soil 0.5 cm thick, slightly covered with weeds, watering moisture, 15 days after emergence, after emergence to remove the cover, freezing period can be moved indoors or film cover, seedlings completely unearthed, pay attention to seedling refinement.

Transplanting: When seedlings grow 2-3 true leaves, transplant in cloudy days, plant spacing is 25- 30cm × 10cm, dig holes for transplanting, one plant per hole, water after planting, and plant about 20,000 plants per mu.

(2)Seed propagation 4-5 months fruit mature in batches, at this time should be harvested in batches and shake out the seeds, immediately sown into the seedbed, the winter can germinate unearthed, during this period, the soil can not be too dry, seed seedlings can be transplanted to the field after one year of cultivation.

3. Field management

(l)Drainage irrigation cat claw grass growth period, soil slightly wet can, dry days should be watered, rainy season pay attention to drainage.

(2)Topdressing 1500kg of human and animal manure per mu in early spring, spraying phosphorus fertilizer once before flowering in March, spraying 5kg of phosphorus fertilizer per mu diluted with water.

(3)Intercropping cat claw grass has a long dormancy period in summer, and can be intercropped with crops, fruits and vegetables with short growth period from early May to the end of September.

(3) Pest control

During the growth period in March-April, if rainy weather, easy to occur blight. Prevention and control methods: should be removed in time ponding; rainy season before spraying with 50% of the 500-fold solution of Tuijunte plants, once a week, continuous spraying 2-3 times.

(4) Harvest and processing

Cat claw grass can be dug up after planting for about 1 year. It is basically the same as rape cultivation and harvest time. The digging period is in late autumn or early spring. After digging out the root tuber, remove the stem and leaf and fibrous root, wash the soil, dry or dry it to obtain the finished product, which can be sold. If the selected plots are suitable and properly managed, about 100 kg of dry matter can be collected per 667 square meters.