Interseedling and fixed seedling of Glycyrrhiza uralensis
Licorice is mostly cultivated in arid areas. In order to ensure high seedling emergence rate, the sowing amount is high when using seed direct seeding method. Therefore, seedling emergence should be carried out according to the seedling situation. Generally, seedlings emerge about 10 days after sowing, when the seedlings grow 2-3 true leaf time seedlings, pull out the over-dense seedlings and weak seedlings, and keep the distance between the seedlings at about 5 cm, which is beneficial to the growth and development of seedlings and form strong plants. when the seedlings grow 3-5 true leaves or the seedling height is more than 6 cm, the appropriate plant spacing is 10-15 cm, leaving 20, 000-25000 seedlings per mu. Seedling transplanting field and rhizome planting field usually do not need to carry out interseedling and fixed seedling.
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Overwintering management of herbal medicines-- Panax notoginseng, Coptis chinensis, Morinda officinalis, Ligusticum chuanxiong
Panax notoginseng: when the leaves of the plant turn yellow and wither in winter, cut off the aboveground stems and leaves about 3 cm from the ground, collect the dead stems and leaves, root out weeds and diseased bodies inside and outside the garden, burn them all outside the garden to clean the countryside, and spray the border surface with 1: 1: 200 Bordeaux solution or 0.2: 0.3 Bomedo stone sulfur mixture to disinfect the soil completely. It is found that there is a root phenomenon, cultivate the soil properly. In addition, after clearing the garden in November, 2000 kg per mu of rotten mixed fertilizer was applied to the root of the plant to protect the bud safely through the winter. Before the seedlings were unearthed
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Ganoderma lucidum disease: Trichoderma viride
Green Trichoderma (TrichodermaviridePers.exFr.) It belongs to Trichoderma, Trichoderma. 1. The morphological characteristics of hyphae are slender, colorless, septate and much branched. Conidiophores arising from the lateral branches of hyphae, opposite or alternate, usually with 2-3 branches, bottle-shaped or conical pedicels bearing conidia. Most of the conidia are spherical, and the spore walls are verrucous, green or turquoise. On PDA medium, the colony was white floc at first, then dark.
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