Planting techniques of asparagus japonica

The original plant of Asparaguscochinchinensis (Lour.) Merr., is Liliaceae. Alias: Xiaoyeqing, next winter, three hundred sticks. It has the function of nourishing yin and moistening the lungs, clearing away heat and promoting fluid. It mainly treats pertussis, dry pharynx and thirst, pulmonary tuberculosis and hemoptysis. Mainly produced in Sichuan, Hubei, Guizhou, Guangxi and other provinces (regions), Hunan, Jiangsu, Zhejiang, Anhui and other places also have distribution.

[growth habits] like a warm, humid environment, not resistant to cold. Avoid strong light, especially when the seedlings are exposed to the hot sun, the stem tips are withered and yellow, so they should be properly shaded or intercropped with trees and medicinal herbs. Soil with deep and fertile sandy loam or humus soil is better, clay is not suitable for planting.

[method of reproduction] propagate separately.

1. Land selection and preparation: select sandy loam with deep soil layer, fertile soil and good drainage or land rich in humus as cultivation land. Turn the land deeply, rake it flat and make a high border with a width of 130 cm.

two。 Split-plant propagation: combined with harvesting, the robust mother plant should be divided into several plants, each plant should have 1-2 buds or 2-Mel 3 small roots as seedlings, planted according to the row spacing of 40 cm X 40 cm (covered with soil and sprayed with herb seeds, which can prevent 40-day grass seeds), those who have farm manure can put some in the middle of the plant spacing, or put some phosphate fertilizer.

[field management]

1. Ploughing and weeding: weeding should be done frequently, weeding manually in the first half of the first year, and herbicides can be used in the second half of the year (no small packaging, small packages containing 246A, which can be mixed with field ridges). The grass is usually yellow and dead 6 days after spraying.

two。 Topdressing: after planting, combined with middle ploughing and weeding, topdressing human and animal manure water once in March to April and June to July, or dripping with 15 kg urea (or compound fertilizer) per mu, once every other month, and topdressing soil fertilizer and soil cultivation from September to October. After that, 2000 Mu of barnyard manure was applied every year before sprouting (that is, before the Spring Festival), and the other two times were the same as the first year.

[harvesting and processing]

Tianmen winter is used in medicine with root tuber. It can be harvested after 2-3 years of planting, and the yield is higher after 4-5 years. Before sprouting from September to the following spring, dig out the root, remove the fibrous root, wash and boil in boiling water for 10 minutes (easy to peel), remove the skin, bake to 80%, smoke with sulfur for 10 hours, then dry.