Cultivation techniques of Panax notoginseng

Panax notoginseng, also known as sunflower, belongs to the vines of the sunflower family for many years. it is native to Brazil and has been planted in many areas of our country, especially in the south. It has the advantages of easy cultivation, low occurrence of diseases and insect pests, high nutrition and good taste, rich in Va and Vc, and has the functions of nourishing, strengthening waist and knees, dissipating phlegm, promoting blood circulation, invigorating stomach and protecting liver. It is a kind of natural green health care and medicinal food, which is worth popularizing, planting and eating.

Panax notoginseng is heat-resistant, likes warm, humid, semi-overcast climate, and avoids strong light. The soil is not strict, resistant to drought and waterlogging. The vitality is exuberant, even if the leaves are not picked, the lower leaves are not yellowed, and the leaves are getting bigger and bigger. The suitable temperature for its growth is 25 ℃ and 30 ℃. When the temperature is below 0 ℃ or frost, the aboveground part dies. In the south, the underground part can survive the winter, while the underground part in the north area can not. Therefore, open field cultivation is mostly used in the south and greenhouse cultivation is used in the north.

Panax notoginseng can be propagated by plant buds or cuttings from March to April. When the seedlings are about 30 days old, they can be transplanted to fertile and semi-shady plots. Before transplanting, the rotten farm manure 3000-5000kg and compound fertilizer 50-100kg were applied to the planting land with a width of 1.5m, and the distance between plants was about 40cm.

After survival, it should be ploughed, weeded, watered and fertilized in time. Topping at the initial stage of growth can promote the occurrence of lateral branches, and plant buds and flower ears should be picked in time, otherwise the nutrition of the plant will be consumed. In the hot summer, when the light is too strong, we can choose the shade net with a light transmittance of 50% and 60%, which is conducive to the vegetative growth of plants and improve the quality of goods.

Panax notoginseng can harvest leaves, tender shoots, plant buds and roots. Leaves and shoots can be harvested sporadically at the initial stage of growth, and a large number of leaves and shoots can be harvested at the peak of production, but it does not affect plant growth. The standard of harvesting is that the product is not aging. The root tuber is usually harvested after autumn or when changing stubble as an adjuvant; the buds can be harvested at any time after the plant grows up.

Panax notoginseng rarely occurs diseases and insect pests, and its main disease is brown spot, which is nearly round on the affected leaves, the edge is nearly purplish red, the boundary is clear, easy to perforate, and in serious cases, the disease spot is dense and cannot be eaten. Prevention and control methods:

First, proper close planting, pay attention to ventilation and control the amount of water.

The second is to spray 7500 times of Zhibao solution to promote the early growth and rapid development of the plant.

Third, at the initial stage of the disease, 75% chlorothalonil wettable powder was sprayed 1000 times or 50% Sukeling 2000 times.