What are the planting time and harvest period for Paris polyphylla (Chonglou)?
Summary Seed sowing: generally carried out in January each year; before sowing, soak the Paris polyphylla seeds in cold water for 24 hours, then mix with plant ash and sow, placing about 2-3 seeds per hole. Seedling transplanting: generally carried out in April each year, and a dry location with a water source needs to be selected.
Paris polyphylla is a relatively well-known traditional Chinese medicinal plant, and it likes to grow in warm places. Paris polyphylla has high value, so many people now want to grow it, but many people do not know much about its planting time, and some people also want to have a comprehensive understanding of its harvest time. Let us take a look below!
Planting time of Paris polyphylla
1. Seed sowing. The planting time of Paris polyphylla seeds is generally in January each year. On the prepared seedbed surface, make small shallow holes 3-5 cm deep with a row spacing of 30-35 cm and a plant spacing of 20-25 cm; make 4 rows on a narrow bed of 130 cm, and make 1 row on a wide bed of 150 cm. Before sowing, soak the seeds in cold water for 24 hours, then mix with plant ash and sow, placing 2-3 seeds per hole; after pressing, cover with 2-3 cm of fertile soil made of half fine manure and half fine soil. If the soil is found to be dry, water it in time.
2. Seedling transplanting: the time for Paris polyphylla seedling transplanting is generally in April each year, and a dry place with a water source needs to be selected. Before digging the soil, it is best to disinfect the soil by mixing 40% quintozene at 5-10 grams per sq m with fine soil and broadcasting it. After leveling and finely breaking up the seedbed surface, open sowing furrows about 5 cm deep on the seedbed surface at a row spacing of 15 cm, sow in the furrows at a plant spacing of 5 cm, then cover with 3 cm of soil, cover with 2 cm of fine manure, water thoroughly and cover with plastic film; seedlings can emerge in 5-7 days. One month after seedling raising, transplant according to the size specifications.
How many years until Paris polyphylla can be harvested
The specific harvest time of Paris polyphylla mainly depends on the age of the seedlings. Some people say it can be sold in 5 years, but that is all nonsense. For Paris polyphylla, it takes at least 2 years from seed to seedling. Therefore, if planting Paris polyphylla is counted from 1-year-old seedlings, it is unrealistic to do so without a growth cycle of seven or eight years. It is precisely because of such a long growth cycle that the price of Paris polyphylla has kept rising.
Field management of Paris polyphylla
1. Thinning and replanting: from mid-to-late May each year, the planting site can be replanted. At the same time, check the holes and fill gaps. Before thinning, water first, pry out the seedlings with a wooden stick, and water with rooting water when replanting. When replanting, make full use of small seedlings to ensure the density of small seedlings.
2. Intertillage and weeding: Paris polyphylla likes to grow in loose soil, and generally the part exposed above ground grows relatively weakly. Special attention should be paid to loosening the soil and weeding. From late May to early June, there is a lot of heavy rain, and the soil is prone to hardening, so it is necessary to drain in time, prevent waterlogging, cultivate frequently, loosen the soil shallowly, and remove weeds at any time. After the seedlings are uniform or after transplanting, weeds should be removed and the soil loosened in time, and frequent and shallow hoeing should be done. When doing this, be sure not to damage the roots, so as not to affect its growth.
3. Fertilization management: when artificially planting Paris polyphylla, the amount of fertilizer must be paid attention to. The base fertilizer used accounts for 70-80% of the total fertilizer amount and must be applied into the soil before transplanting. The later topdressing amount can only account for about 20% of the total fertilizer amount. After the seedlings emerge each year, apply human manure water once as topdressing. Do not use or seldom use chemical fertilizers, and be sure not to use chemical nitrogen fertilizer, as this is not conducive to its growth.
The planting time of Paris polyphylla is divided into two periods, one is the seed planting time and the other is the seedling transplanting time, and the two are different. Generally, Paris polyphylla can be harvested after seven or eight years of planting. If you want a large harvest of Paris polyphylla, its field management is also very important, so this work should be done well.