How to plant Rhizoma Paridis
Introduction: This article introduces the planting methods, cultivation techniques, and management tips for Rhizoma Paridis. Let's find out together with the introduction by the editor for netizens.
Rhizoma Paridis grows in the shade of slopes, forests, and shrub thickets, prefers warmth, humidity, and shade, but it is also cold-resistant and drought-resistant, fearing frost and sunlight. The average annual temperature is 13-18°C. Sandy and loamy soils with high organic matter and humus content can be planted, especially suitable for planting near rivers, ravines, and shady mountains. Let's take a look at the planting time of Rhizoma Paridis!
Seed Treatment of Rhizoma Paridis
The seeds of Rhizoma Paridis have a long dormancy period and a low natural germination rate. By using artificial methods to break dormancy, the germination rate can be improved, and the growth cycle can be shortened. The method is to combine alternating temperature stratification with plant hormone treatment to break dormancy and explore the effects of temperature, substrate, and light on germination. It was found that the seed embryo of Rhizoma Paridis has a secondary dormancy phenomenon. By using fine sand stratification and cold storage treatment followed by 50-100 mg·L-1 GA treatment for 24 hours, with fine sand as the substrate, germination can reach over 90% after 60 days of germination at 20°C.
Planting Time of Rhizoma Paridis
1. Direct seeding: The direct seeding time of Rhizoma Paridis is usually after the heavy rain in the first or second ten-day period of January. On the well-prepared seedbed, small shallow holes 3-5 cm deep are made at a row spacing of 30-35 cm and a plant spacing of 20-25 cm. For a narrow seedbed of 130 cm, 4 rows are planted, and for a wide seedbed of 150 cm, 1 row is planted. Before planting, the seeds are soaked in cold water for 24 hours, then mixed with wood ash and sown, with 2-3 seeds per hole. After covering with a mixture of fine manure and fine soil 2-3 cm thick, water should be timely applied when the soil is dry, and seedlings will emerge in 7-10 days.
2. Seedling transplanting: The seedling time of Rhizoma Paridis is usually in the first ten days of April, selecting a seedbed in dry land or vegetable garden with a water source. Before turning the soil, it is best to use 40% pentachloronitrobenzene at 5-10 grams per square meter mixed with fine soil for soil disinfection. After leveling and refining the seedbed,播种沟 are opened 5 cm deep at a row spacing of 15 cm, and seeds are planted at a plant spacing of 5 cm, then covered with 3 cm of soil and 2 cm of fine manure. Water thoroughly and cover with plastic film, and seedlings can emerge in 5-7 days. One month after seedling, transplant the small seedlings to the field according to the direct seeding specifications.
3. Rhizome planting: In autumn and winter, dig up strong, disease-free rhizomes and store them in a cool and dry place with sand. Take them out in the first or second ten-day period of April the following year. Cut them into small sections with one bud scar each, then dry them properly and mix with wood ash, and plant them in the seedbed as if sowing, and cover with plastic film. After 15-20 days of root growth and germination, transplant to the field in the middle to late May according to the direct seeding specifications.
Planting Management of Rhizoma Paridis
1. Thinning: In the middle to late May, thin the seedlings in the direct seeding area and fill in the gaps. Before thinning, water the seedlings first, use a wooden stick to lift the seedlings, and water the transplanted seedlings to make full use of the small seedlings and ensure a full crop and sufficient density.
2. Cultivation: Rhizoma Paridis requires loose soil. The above-ground part has a weak growth, so special attention should be paid to loosening the soil and removing weeds. From late May to early June, there is heavy rain, and the soil is prone to caking. It is necessary to drain and prevent waterlogging in time, and frequently cultivate the soil shallowly to remove weeds.
3. Weeding: After the seedlings are full or transplanted, it is necessary to remove weeds and loosen the soil frequently and shallowly to avoid damaging the roots and affecting growth. Usually, mulch the ridge surface with grass to keep the moisture.
4. Fertilization: The base fertilizer used for人工栽培 of Rhizoma Paridis accounts for 70-80% of the total fertilizer and must be applied to the soil before transplanting. The topdressing in the later period can only account for about 20% of the total fertilizer. After the seedlings emerge each year, apply human waste water once, and use little or no chemical fertilizers, especially禁用 chemical nitrogen fertilizers.
5. Water management: Rhizoma Paridis prefers a shady and humid environment. The ridge surface and soil layer should be kept moist. In case of drought, water should be applied in time, and喷水 regularly between intervals. In the rainy season, it is necessary to drain the ditches in time to prevent field waterlogging and trigger diseases.
6. Cutting off the flower spike: To reduce nutrient consumption and allow nutrients to be concentrated for the growth of underground tubers, when flower spikes appear in May to June, except for seed preservation, all flower spikes should be cut off to increase yield.
7. Shading: Rhizoma Paridis prefers shade and fears strong light. The whole growth period is best with a light transmission of 40-50%. Therefore, shading measures should be taken after emergence and transplanting. In places with conditions, it is best to use sunshades, and in places without conditions, shading can be achieved by inserting branches. Alternatively, tall crops like corn can be intercropped for shading, but attention should be paid to density and intercropping methods.
8. Earthworks: Rhizoma Paridis usually follows the growth pattern of flowering above and tubers swelling below. From mid-June to August, the tubers grow fastest. It is necessary to apply a heavy topdressing in early June, using 2000-3000 kg of decomposed farm manure per mu plus 20-30 kg of calcium superphosphate, applied to the roots and combined with clearing the ditches for large earthworks. The soil used for earthworks must be loose, keeping the ridge surface and ditch bottom free of waterlogging.
9. Harvesting: Rhizoma Paridis can be harvested from late autumn to early winter, or before March of the following year. Most of the tubers grow in the topsoil layer and are easy to dig. Care should be taken to keep the tubers intact. First, cut off the stems and leaves, then dig out the tubers from the side with a hoe, shake off the soil, wash clean with water, and slice fresh into 2-3 mm thick pieces, then dry in the sun. On cloudy days, it can be dried with a gentle fire at about 30°C.
The above (Green Plant Enthusiast Network) introduces the complete content of how to plant Rhizoma Paridis and its cultivation techniques and management. Green plant enthusiasts may refer to this for reference.