Seedling transplanting and direct seeding propagation of Angelica sinensis
1. Seedling raising and transplanting
The main results are as follows: (1) the fresh seeds which bear fruit in the second year after transplanting should be selected. Before and after the Beginning of Autumn, when the seed epidermis is blue or pink and the scape is drooping, cut off the scape together and put it in a ventilated and dry place to dry, threshing and storage. Avoid exposure, baking and rain.
(2) sowing seedlings is usually sown with picking around the beginning of autumn, and it is suitable to sow seeds from mid-August to early September in low-altitude areas with slightly higher temperature. Timely sowing can avoid early bolting of Angelica sinensis. Early, the seedling growth period is long, the seedling is easy to bolt in advance; too late, the growth period is short, the temperature has dropped, and the seedling growth is poor. Using strip sowing, the horizontal trench was opened according to the row spacing of 25 cm on the finished border surface, the depth of the ditch was 3-5 cm, and the bottom of the ditch was leveled. Before sowing, soak the seeds in 25: 30 ℃ warm water for 24 hours, take out and dry, sow evenly in the ditch, cover the fine soil, so that the seeds are not seen. Finally, cover the border with grass about 3 cm thick. The seed consumption is 60-75 kg per hectare. The seedlings emerged about 15 days after sowing. One month later, when the seedlings are 1cm or 2cm high, gently shake the cover grass on a cloudy day, and then take it off carefully to prevent the seedlings from drilling into the cracks in the grass, causing damage to the seedlings. After uncovering the grass, weeds should be removed when you see them, and there should be no weeds in the field, and the seedlings should be removed, weak and strong, and the distance between plants should be kept about 1 cm apart. In mid or late October, when the leaves of the seedlings are yellow and withered, dig up the seedlings, bundle them into small bundles 5 to 6 centimeters thick, cut off the upper stems and leaves, put some soil on the roots, dry the water vapor and store them in the cellar. Can also be in the indoor dry to the sun, dig a moderate size of the pit, about 60 cm deep, the bottom of the pit first covered with a layer of 5 cm 7 cm of fine sand, its upper layer of seedlings, and then covered with a layer of fine sand, so alternately laid to 15 cm from the top of the pit, sealed with dry soil, about 30 cm thick, the top of the pit made of tortoise back shape. The seedlings can also be stored in a special square bamboo basket with fine sand and stored in a cool and dry place indoors. This method is simple and easy to manage.
2. Autumn direct seeding is most commonly used in live broadcast, which is not early bolting, simple and low cost. Can be strip sowing or hole sowing, hole sowing is better, according to the hole distance of 27 cm, product glyph digging, 3 cm 5 cm deep, the bottom of the hole is flat, each hole sowed 10 seeds, placed in a radial shape. After a little pressure, cover with fine fertile soil, 1 cm to 2 cm thick, and finally flatten the border surface and cover with fallen leaves for moisturizing.
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Management of Angelica sinensis in winter
Direct seeding angelica combined with topdressing before winter, manure soil covered on the seedlings or in the seedlings covered with about 1 cm of fine soil, so that it is free from freezing damage; seedling transplanting angelica winter to do a good job of seedling storage; seed angelica in order to improve seed yield and quality, before harvest must choose high mountains or semi-mountain ground growth robust, uniform seedlings. After that, the aboveground part of the remaining seed plants will be cut off, weeds will be removed, and they will be allowed to winter naturally, and they will be kept under constant supervision to prevent livestock from entering and trampling, resulting in lack of seedlings. Weeds grow in the following spring and can be pulled out by hand; the roots are covered with soil at this time
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Selection, preparation and transplanting of Angelica sinensis
(1) the land selection, land preparation and seedling cultivation should choose cool, fat and wet raw wasteland or mature land, and the loose and fertile sandy loam soil should be better, and the cultivation land should be fallow land or second wasteland with deep soil layer. In the middle of July, shrubs and weeds were cut down, spread on the ground and burned, then the land was turned more than 25 centimeters deep and matured in the sun, and then, before planting, 37500 kg of rotten barnyard manure per hectare was applied and turned into the soil as base fertilizer. Shallow ploughing once before sowing to make a high border 1.3 meters wide, with a width of 30 centimeters and a height of about 25 centimeters.
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