Planting Management of Panax Notoginseng

Site selection: there are many family species of Panax notoginseng, and the cultivated land should choose Xiangyang hillside. Generally speaking, sandy black loam is the best soil, ash soil is the second, red soil is the second. Clay is not suitable for cultivation. Site selection is one of the important factors for the success or failure of the introduction of Panax notoginseng. It is appropriate to choose a hillside with an elevation of 700 mi 1500 meters, Dongyang and a slope of 10 mi 20 degrees. In the low mountain area or hilly plain area above 400 meters above sea level, the diseases and insect pests are more serious, and the leaves often fall off in the early stage. Experience has proved that it is better to choose a cool and ventilated hillside with high mountain shade in the west.

Building a shed: there are two ways to build a shed: one is a ceiling with a structure of wooden columns and beams, that is, it is made of wood and bamboo strips, with a height of 5.5 mi 6ft. The other is the ceiling with wooden column and iron wire structure, that is, the steel wire is used instead of the crossbeam. The distance between the columns is about 8 feet. Each mu needs 120 Muoi 130 wooden columns. The main function of the shed is to adjust the light and temperature. It is adjusted according to different seasons and temperatures. The angle of sunlight projection in spring is small, the light is weak, and the light can be sparsely covered. The general transmittance can be 65% Muth75%. Later, it will be gradually encrypted with the increase of light and temperature. Generally, the direct light on the north slope is less, but the cover is thinner, and the light intensity on the south slope can be denser.

Bedding: it is generally necessary to make a bed along the slope to facilitate drainage and field operation. The width of the border is 1.8 mi 2 feet, the height of the border is 5 mi 6 inches, the length of the border can be determined according to the topography, the width of the ditch is 1 foot, and the surface of the border is fish back. After the border is made, the base fertilizer is applied to the border surface with 30 cents per mu of base fertilizer, the proportion of which is 70% of cow dung and 30% of plant ash. If there is phosphate fertilizer (calcium superphosphate, bone meal), add about 30 jin. The base fertilizer must be applied after ripening, evenly distributed on the border surface and fully mixed with the soil.

Seed selection and sowing: the ripe and full seeds from the fruit of Panax notoginseng are selected and sown with picking and sowing from October to November in winter. After sowing, they are covered with a layer of fire soil mixed with fertilizer, and then covered with a layer of turf to promote seed germination. In order to prevent the growth of weeds and water evaporation, the row spacing is 3 × 2 inch or 3 × 3 inch, 28-320000 seeds per mu should be planted, and the soil should be covered with a layer of straw (the straw should be cut into 3-inch sections and sterilized with stone-sulfur mixture). It can also prevent leakage and rain from breaking the border and affecting seedling growth. The thickness of the cover is 0.3 won 0.5 inch, and about 80% of the border surface is covered.

Transplant to another place: Panax notoginseng must be transferred to another place after growing in the seedling bed for one year (commonly known as "seed"). The transplanted new land should be arranged in the same way as the seedbed, preferably during heavy snow or the Winter Solstice. Dig up the "seed" of the seedling bed, cut off the stems and leaves, commonly known as "Ke Zi" into the hole, apply a pinch of mixed fertilizer, cover the local area, and trench according to 7 × 6 inch or 8 × 6 inch row spacing, ditch depth 1 Mui 1.5 inch, when planting seedlings, make the seedling and the bottom of the ditch at an angle of 20 Mutual 30 degrees, cover the soil while planting, the thickness is not to expose the bud head, should not be too thick, and then cover the broken grass with a thickness of about 0.3 inch and 0.5 inch, with no soil as the principle.

Adjust the ceiling: the light transmittance of the ceiling is closely related to the growth and development of Panax notoginseng, the light transmission is too small, the plant is weak, it is easy to have diseases and insect pests, and the flowering and fruiting is less; the light transmission is too large, the leaves turn yellow, and it is easy to appear early wilting phenomenon. Generally, the transmittance is 60% Mel 70% in spring and 45% MUE 50% in summer. When the temperature turns cool after the Autumn Equinox, the transmittance can be gradually expanded to 50% Mui 60%.

Weeding and topdressing: no matter one year or more than two years, the garden must be weeded when you see the grass. Fertilization is applied at least 5 times a year, and mostly 8 times, about once every 2 months. For the first time, 150 jin of plant ash and 500 jin of turf ash are applied, when the emergence of seedlings reaches 70%. The second time around April, 200 jin of mixed fertilizer was applied per mu (30 jin of cow bone powder and 50 jin of calcium superphosphate) after fermentation. ) the third time was in May, when 200 jin of mixed fertilizer was applied. The fourth time in July, green manure was applied (chopped green manure for fermentation), and the fermented green manure was evenly distributed on the border.

Winter care: mainly to remove residual leaves, sparse fence (adjust the transmittance to 70% color 80%), thoroughly disinfect once (ceiling, ground and fence are fully disinfected with 0.2-degree stone-sulfur mixture of 0.3 degrees), the aim is to adjust the temperature and humidity in the shed and reduce overwintering diseases and insects. Then sprinkle 1000 / 2000 jin of mixed fertilizer on the border surface.