High-yield cultivation techniques of Panax notoginseng

⒈ seedling raising: Panax notoginseng can be propagated by cuttings and bulbs, but generally mainly by cutting propagation. After the new branches sprouted in spring, the strong branches were cut and inserted in the seedbed, and the loose sandy loam was better for the bed soil. After moisturizing for about 20 days, it can take root and grow into seedlings.

⒉ planting: before planting, first apply sufficient base fertilizer, generally apply 3000 kg organic fertilizer per mu (667m 2), plus 30 kg calcium superphosphate, and then plough deeply, rake flat, and make flat beds. The planting period of open field cultivation is in the middle and last ten days of April, and the row spacing is 30 × 60 cm, 3000 plants per 667m2. Panax notoginseng can be planted once for three consecutive years, and new seedlings can be replaced in the fourth year.

⒊ field management: Panax notoginseng has slender vines and strong branching power, so it needs to be planted in a frame to make the plants evenly distributed and increase the space utilization rate and light area.

During the growth period of Panax notoginseng, pay attention to fertilizer and water management, usually pay attention to watering and moisturizing, and timely drainage when it is rainy. After each harvest, fertilizer should be applied once, 500 kg / 667 square meters of human feces and urine or 10 kg / 667 square meters of urea, which can promote new shoots and leaf hypertrophy.

In high temperature in summer, sunshade net should be used to shade the sun, which can inhibit plant germination and differentiation, promote vegetative growth and increase yield.

The main disease of Panax notoginseng is sunflower snake eye disease. It is mainly harmful to leaves and makes them lose their commerciality. at the initial stage of the disease, 75% chlorothalonil or 2000 times of chlorothalonil can be used to control the disease.

⒋ harvesting: the harvesting organs are tender leaves or shoots, harvested once in 15-20 days in the early growth stage, and once in 10-15 days in the middle and later stages. It can be harvested until the end of the year, with a yield of 2000 kg per square meter.