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.
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How to manage Panax notoginseng
The main results are as follows: (1) when the prop seedling is 30cm high, build a frame in time to make it climb, and at the same time, pick the heart to promote the germination of lateral buds. (2) in open field cultivation, shading net should be used to shade in summer, which can inhibit flower bud differentiation, make plant continue vegetative growth, inhibit summer flowering, achieve the purpose of producing leaves all year round and increase yield. (3) Fertilizer and water management Panax notoginseng has strong growth potential and large water demand, although it is resistant to drought, it needs frequent watering for its leaves to grow hypertrophy and high yield, and compound fertilizer is applied after each leaf harvest.
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Cultivation techniques of Panax notoginseng
Cultivation season and cultivation mode 1) cultivation in open field. In the south, there are many rows of open field cultivation because of the warm climate. Open field cultivation can also be carried out in the north, usually raising seedlings from March to April, planting in the open field in May, and harvesting from June to September. 2) protected cultivation. In order to obtain high quality and long-term supply, solar greenhouse can be used in the northern region. Because it can be cultivated perennially in the greenhouse, it can be harvested many times after one cultivation. It can be planted all the year round, but it is better in spring and autumn. Cultivation techniques 1) breeding methods. one
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