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LY/T 3174-2020: Technical regulations for cultivation of Hibiscus syriacus
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Technical regulations for cultivation of Hibiscus syriacus
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LY/T 3174-2020
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Basic data | Standard ID | LY/T 3174-2020 (LY/T3174-2020) | | Description (Translated English) | Technical regulations for cultivation of Hibiscus syriacus | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B62 | | Classification of International Standard | 65.020.20 | | Word Count Estimation | 7,766 | | Date of Issue | 2020-03-30 | | Date of Implementation | 2020-10-01 | | Regulation (derived from) | Announcement No. 6 of 2020 by the State Forestry and Grassland Bureau | | Issuing agency(ies) | State Forestry and Grassland Administration | LY/T 3174-2020: Technical regulations for cultivation of Hibiscus syriacus---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical Regulations for cultivation of Hibiscus syriacus
ICS 65.020.20
B 62
LY
People's Republic of China Forestry Industry Standard
Hibiscus cultivation technical regulations
2020-03-30 released
2020-10-01 implementation
Issued by the State Forestry and Grassland Administration
Foreword
This standard is compiled in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the State Forestry and Grassland Administration.
This standard is under the jurisdiction of the National Flower Standardization Technical Committee (SAC/TC 282).
Drafting organizations of this standard. Kaifeng Academy of Agriculture and Forestry Sciences, Paulownia Research and Development Center of State Forestry and Grassland Administration, Pingdingshan City Gardens
Chemical Center, Nanyang City Baihe National Wetland Park Management Office, Xinxiang City People’s Park, Kaifeng City Liuyuankou Provincial Wetland Nature Reserve Management Station,
Xinzheng Forestry Bureau, Xinmi Forestry Bureau, Kaifeng Vegetable Research Institute, Kaifeng Xiangfu District Agriculture and Rural Bureau, Neixiang County Agricultural Technology Promotion
Wide center.
The main drafters of this standard. Zhao Yanli, Li Zhanhong, Cao Qin, Yuan Rencheng, Sun Zengli, Xu Hong, Luo Ying, Chen Guoling, Wang Liuchao, Lu
Zhihong, Wang Mingmin, Cai Zhili, Yang Guang, Zhao Yali, Liang Linlin, Zhu Lei, Feng Yuzeng.
Hibiscus cultivation technical regulations
1 Scope
This standard specifies hibiscus seedling cultivation and pest control technology.
This standard applies to the cultivation and management of hibiscus seedlings.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 6001 Technical Regulations for Nursery
GB/T 8321 Guidelines for the rational use of pesticides
GB/T 15063 compound fertilizer (compound fertilizer)
LY/T 2290 Forest Tree Seedling Label
NY/T 496 General Rules for the Reasonable Use of Fertilizers
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Single trunk shape
The tree has a distinct central trunk.
3.2
Shrub shape
The tree has no obvious central main stem, and multiple main branches occur close to or directly on the ground.
4 Seedling cultivation
4.1 Garden selection
It is advisable to choose loam or sandy land with deep soil layer and fertile soil, which requires flat terrain, sufficient sunlight, convenient irrigation and drainage, and convenient transportation.
4.2 Cutting seedlings
4.2.1 Land preparation and bed making
Remove debris before soil preparation, spread basic fertilizer, and apply fully decomposed organic fertilizer 3 m³～5 m³ and 45% NPK ternary compound fertilizer 50 kg per 667 m2.
Deep plowing and rake leveling. In the arid plain area, a low bed with a width of 150 cm to.200 cm, a ridge of 30 cm wide and unlimited border length, is suitable for convenient management.
The Huaihe River Basin and the area to the south where there is more rain can be made into a high bed with a width of 100 cm～120 cm, a height of about 20 cm, a walkway width of 30 cm, and a bed length
No more than 20 m. Water after making the bed. The fertilizer used should comply with the regulations of GB/T 15063 and NY/T 496, and the bed should comply with the regulations of GB/T 6001.
set.
4.2.2 Cutting time
Before the buds of the hibiscus tree sprout in spring.
4.2.3 Cutting preparation
Before germination, select 1-year-old branches with a diameter of 0.5 cm to 1.5 cm on the mother tree, cut cuttings 10 cm to 15 cm in length, and leave 3 for each cutting.
One to five full buds, with a flat stubble on the top and an oblique stubble on the bottom. It should be picked and inserted.
4.2.4 Cutting density
Plant spacing is 8 cm～10 cm, row spacing is 15 cm～20 cm.
4.2.5 Cutting method
Cover the seedling bed with mulch and compact the surrounding area with soil. Use a wooden stick to insert a pre-hole according to the spacing of the plants, and then insert the cuttings straight into the hole, deep into the soil
The degree is 2/3 of cuttings. Fill the cuttings with water immediately.
4.3 Post-plug management
4.3.1 Fertilizer and water management
Promote integrated management of water and fertilizer. From March to May, before the new roots of the cuttings are released, keep the soil moist but not accumulate water, and then according to the soil moisture and
Water and drain regularly. During the fast-growing period of seedlings from June to August, apply fertilizer once a month or so, and apply 5 kg of high-nitrogen water-soluble fertilizer every 667 m2 in June and July.
10 kg, 5 kg～10 kg of NPK balanced water-soluble fertilizer per 667 m2 in August. Spray 3 to 4 times of foliar fertilizer during the growing season, preferably dihydrogen phosphate
Potassium 0.1%～0.2% solution.
4.3.2 Field loosening
After the rain and after the nursery is irrigated, the soil is plowed and loosened in time.
4.3.3 Wipe buds
When the buds are more than 10 cm long, start to wipe the buds and leave 2 to 3 at the first time; when the buds are about 20 cm long and the base is lignified, choose to leave a healthy bud.
Strong bud cultivation.
4.4 Large seedling cultivation
4.4.1 Transplanting
It is advisable to transplant the seedlings in autumn after falling leaves or before germination in spring. The row spacing is (1.2～1.5)m×(1.2～1.5) m.
4.4.2 Field management
Water back to green water and frozen water every early spring and early winter, and water in time according to soil moisture during the growing season. After heavy rain or continuous rainy days, and
When removing stagnant water. Apply urea once in May and July each year, fertilize 5kg-15 kg per 667 m2; in August, apply 45% NPK ternary compound for every 667 m2
Hefei 5 kg ~ 15 kg. Top dressing should be applied in furrow, and the depth of furrow is 20 cm～30 cm. The fertilizer used should meet the requirements of GB/T 15063.
4.4.3 Shaping
4.4.3.1 Single stem shaping
Fixed stem. According to the cultivation goal, the fixed stem should be 0.8 m～1.2 m above the ground after transplanting. If the seedlings cannot reach the fixed height, they should be 10 cm away from the ground
Flat stubble left and right to promote a strong backbone, and then decide when the backbone meets the requirements.
The first year. After setting the stem, more than 3 main branches with different growth directions are promoted at 20 cm～30 cm under the cut. The dormancy period is short for the main branch
Cut off and leave 2 to 3 side branches on each main branch.
Second year and beyond. In summer, the upright branches in the crown and the sprouting tillers at the base are removed, and the flowering branches are retracted in time after flowering. Main branch and lateral branch back in winter
Shrink and renew, thin out dense branches and dead branches with pests and diseases in the inner chamber, and release strong flowering branches slowly.
4.4.3.2 Multiple stem shaping
Flat stubble. Leave 5 cm～10 cm flat stubble after transplanting.
The first year. Keep more than 2 robust shoots and cultivate them into the main trunk. In the dormant period, each trunk is cut short, and each trunk is selected to leave 2～
3 main branches.
The management of the second year and beyond is the same as 4.4.3.1.
4.5 Nursery stock delivery and transportation
4.5.1 Seedlings leaving the nursery
The seedlings should be released from the nursery in the autumn after the leaves are fallen or before the spring germination. Irrigate thoroughly 3 to 10 days before leaving the nursery.
The seedlings should reach a certain depth, and the requirements should be. less damage to the lateral roots and fibrous roots, keeping the root system relatively intact and not breaking the seedling stem.
The 1-year-old seedlings are grown out of the nursery with bare roots, the height of the seedlings is ≥80 cm, and the ground diameter is ≥0.8 cm. Large perennial seedlings should be brought out of the nursery with soil balls, the diameter of which is the seedlings
8 to 10 times the ground diameter, packed in a single plant with packaging materials such as straw ropes, ground diameter ≥ 2 cm, crown width ≥ 60 cm, and branches evenly distributed.
The label should be hung after emergence, and the label conforms to LY/T 2290.
4.5.2 Seedling transportation
Seedlings should be planted at the same time. Long-distance transportation should be shaded and moisturized. The roots of bare-rooted seedlings should be dipped in mud; large seedlings with soil balls should be prevented from being crushed and broken.
damage.
5 Pest control
5.1 Timely weeding
Weeding in time during the growth period should be combined with field tillage after rain or watering, taking care not to damage the seedlings.
5.2 Main pests and diseases and control methods
The main diseases of hibiscus are anthracnose, leaf spot and powdery mildew. The main pests are spider mites, cotton aphid, cotton leaf roller moth, Euonymus geometrid, thorn
Moths, large lion moths, ramie longhorn beetles.
See Appendix A for the main pests and control techniques. The use of pesticides should comply with GB/T 8321 regulations.
AA
Appendix A
(Informative appendix)
Hibiscus main pest control technology
See Table A.1 for the prevention and control technology of the main diseases of Hibiscus.
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