White worm cultivation harvesting technology
1. The selection of land and soil preparations should not be used for continuation of pesticides. Generally, there is a good choice of well-drained, ventilated sunny, deep and fertile soil. Before planting, it should be intensive cultivation, deep plowing 30-40cm, plowing 1 or 2 times. Combine ploughing, applying 2500-4000kg of manure or compost per acre as basal fertilizer, sorghum as a sorghum or flatland cultivation of 1.3-2.3m wide, and between daytime gutters of 20-30cm, depending on the terrain.
2. Propagation techniques are mainly rooted and propagated, but they can also be propagated by seeds. However, due to the long seed growth cycle, they are currently used less frequently in production.
(1) Reproduction by roots. Root-reproduction is a commonly used method for the production of peony and has a short production cycle. At the time of harvest, the peony buds were cut off from the roots, and the strong buds were selected and cut into small pieces, 2 to 4 buds per bud, and about 2 cm of the head was kept under the buds to facilitate the growth. Sand and cellar were planted again, and the peony was planted from August to October. Planting was conducted at a planting distance of 50cm30cm, and the depth of the hole was about 10cm. Each bud had 1 to 2 buds, buds were up, laid flat, and then covered with earth about 5cm. , cover it. About 2,500 plants per acre.
(2) Seed breeding. Single-valve medicine is much stronger. In the middle and early August, the seeds are mature, with the harvest with the broadcast, or with wet sand mixed storage until the middle and late September sowing. Seedlings were planted after 2 to 3 years of growth.
3. Field management Early spring pine soil protection, after the emergence of the annual cultivator weeding 4 times, combined with grass roots in the roots, in late October, before freezing in the ground from 7 ~ 10cm at the place to cut branches and leaves, rhizosphere soil about 15cm, to facilitate Wintering. From the second year onwards, fertilization is conducted 3 times a year. From late March to early April, thin human urine is applied. The second time in late April, 500 kilos of manure is applied per mu and the third time is from October to November. During the month, circumfertility is the main factor, with 1500-2000kg per mu. The top-dressing fertilizer is harvested twice before the fourth year of harvest. The peony herb generally does not require irrigation. When it is severely drought, it should be irrigated once in the evening. During the rainy season, it should be timely irrigation and drainage. The buds should be removed in time every spring.
4. Pest control (1) Leaf spot. Occurs frequently in the summer, and it mainly damages the leaves. The leaves of the diseased plants fall early and grow weak.
Control methods:
1 timely removal of diseased leaves;
2 before the onset of 1:1: 100 times more Bordeaux fluid or 50% of the special 800 times the bacterium, spray every 7 days to 10 days 1, successive times.
(2) Rust. Damage to the leaves occurred in early May and severe from July to August.
Control methods: 1 Select topography, high dryness, well-drained land cultivation; 2 eliminate diseased plants;
3 In the initial stage of the disease, spray 0.3-0.4 Baume degree lime sulfur or 97% diuretic sodium 400 times, and spray once every 7 days to 10 days.
(3) Root rot. When it rains in summer, it often occurs, causing damage to the roots.
Control methods: 1 Select robust axillary buds as seed; 2 at the beginning of the disease with 50% carbendazim 800 times to 1000 times the root irrigation.
(4) Insect pests. There are mainly roots such as earthworms and earthworms, which occur from May to September. Control methods: Use 90% of trichlorfon 1000-1500 times to irrigate the root insecticide. It is forbidden to use any pesticide 7 days to 10 days before harvest, and it is forbidden to use highly toxic pesticides throughout the growing season.
It is advisable to harvest yam yam in the third to fourth years of the harvest in August. Select the sunny harvest at harvest, cut the stems and leaves, cut the roots, cut the thick roots from the place of the hoe, and leave the crude root of the pen On the hoe head, it is used for propagation of the ramets, and then the lateral roots on the rough roots are cut off to the roots, and the larvae are cut into 9 to 12 cm in length according to the natural growth conditions of the roots. Days ~ 3 days, turning a heap every day.
When the seeds are harvested, they are cut off medicinal parts, leaving about 6 cm of roots, and cutting off the blocks longitudinally. Each block retains 4 to 5 buds, and some lime is placed in the wound and put in the sun to make it sallow. The wound is dry and stored in the pit or in the sand using the sand trap method. It is planted from late September to early October. Seeds mature in mid-July and late July, cut with shells, put in a cool place for about 10 days, then threshing, avoid sunlight exposure, and sow at the end of July to early August. After sowing, care should be taken to cover straw insulation and moisturizing.
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MW: 280.44
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