Cultivation techniques of Rabdosia angustifolia

Cold powder grass can be made by adding water to its branches and leaves, so it is called "cold powder grass". Cold noodle is the best green food to relieve summer heat and quench thirst in southern summer, and it has always been loved by people. Therefore, the price of herb is getting higher and higher. Last year, the retail price of its dry products reached 1014 yuan per kilogram. The hay yield is 15002500kg per 667m2, the output value is 800000kg / 667m2, and the planting cost of self-propagating and self-breeding seedlings is not more than 1500 yuan per 667m2, including man-hour wage. If the cold powder grass is processed into cold powder, the economic benefit will be doubled.

1. The characteristics of Codonopsis thunbergii. It is a perennial herb of Labiatae, with clumps, creeping growth, opposite leaves, shallow roots and well-developed roots, strong regeneration ability, and branches about 40 cm long. The whole growth period is about 210days, which is suitable for all kinds of soil. the temperature is dormant below 10 ℃, the temperature begins to grow above 10 ℃, and the growth is exuberant below 20 ℃. It is more resistant to drought and waterlogging, and there are no diseases and insect pests during the whole growth period. Pigs, cattle, chickens and ducks do not eat. The corners of the field, soil ridges and the front and back of the house can be planted, and they can be planted for many years in a year.

2. Cultivation techniques select fields with good fertile and water conditions, ploughing, smashing, raking, opening enclosure ditches to prevent stagnant water, 667 square meters with 20 burdens of rotten pigs, cattle manure and 50 kg calcium magnesium phosphate fertilizer evenly applied to the soil surface and then ploughing, and then making a border with a width of 1.2m, a height of 0.3m and an average width of 0.3m, leveling and fine the border surface, picking out weeds, and planting when the temperature is above 10 ℃ (herbal powder has strong vitality. As long as it is moisturized regularly after evaluation, it can basically be planted all the year round. When planting, dig money trench according to row spacing of 27 cm, plant spacing of 20 cm, plant ash of human feces, urine pulp, plant ash or fermented oil, mix plant ash with soil, and plant it should not be too deep, it is appropriate to bury the root system in soil, and pour enough water to fix the root after planting. Water should be watered in case of drought. About a week after the seedlings survived, the first fertilizer was applied with 10% human urine, and then 20 piculs of rare urine was applied with 5kg of urea every 10 days. Choose a sunny day for ploughing and weeding after the full moon. Care must be taken not to damage the root system, and 667 square rice should cover the interrow space with 20 piculs of fresh pig and cow manure to prevent weeds from growing. In 45 days or so, when the branches are about 35 cm long and 40 cm long, the harvest can begin, and the harvest can be 4-5 crops a year.