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LY/T 3087-2019: Technical regulations for cultivation seedling of Machilus thunbergii
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Technical regulations for cultivation seedling of Machilus thunbergii
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LY/T 3087-2019
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Basic data | Standard ID | LY/T 3087-2019 (LY/T3087-2019) | | Description (Translated English) | Technical regulations for cultivation seedling of Machilus thunbergii | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B61 | | Classification of International Standard | 65.020.20 | | Word Count Estimation | 7,762 | | Date of Issue | 2019-10-23 | | Date of Implementation | 2020-04-01 | | Issuing agency(ies) | State Forestry and Grassland Administration | LY/T 3087-2019: Technical regulations for cultivation seedling of Machilus thunbergii---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.
(Phoebe nannan seedling raising technical regulations)
ICS 65.020.20
B 61
LY
People's Republic of China Forestry Industry Standard
Hongnan seedlings technical regulations
Technical regulations for cultivation seedling of Machilus thunbergii
2019-10-23 released
2020-04-01 implementation
Published by the National Forestry and Grassland Administration
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Jiangxi Provincial Forestry Department.
This standard is under the jurisdiction of the National Forest Seed Standardization Technical Committee (SAC/TC 115).
This standard was drafted. Jiangxi Academy of Forestry Science, Ji'an Forest Tree Seedlings and Forest Farm Management Station, Jiangxi Yifang Forestry Engineering Co., Ltd.
The main drafters of this standard. Zhang Ting, Qiu Fengying, Wu Yanfang, Jiang Xiangmei, Yang Haikuan, Dai Xiaoying, Wang Xindong, Wen Shizhen, Li Jiang,
Guo Jie, Song Xiaochen, Wu Sheng, and Li Chunjiang.
Hongnan seedlings technical regulations
1 Scope
This standard specifies Machilus thunbergii seed collection and seed treatment, sowing and seedling raising, seedling investigation, seedling classification,
Nursery stocks and archives.
This standard applies to the cultivation of naked root seedlings and container seedlings of Phoebe bournei.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB 2772 Forest tree seed inspection regulations
GB 6000 Quality Classification of Main Afforestation Tree Seedlings
GB 6001 technical regulations
LY/T 2280 Forest tree seedling production and operation file
3 Seed collection and seed treatment
3.1 Selection of mother tree
The selection of the mother tree should choose a good middle-aged forest with good growth conditions, straight stem shape, beautiful crown type, and no pests.
3.2 Seeding time
Collected from mid-June to early July when seeds become brown.
3.3 Real modulations
Put the collected fruits in a cool place and pile them for 2 d to 3 d. After repeated rubbing, wash the outer peel, pulp and other debris with water and place
Dry the surface moisture in a well-ventilated place.
3.4 Seed Inspection and Quality Classification
3.4.1 Seed Inspection
Refer to GB 2772 for implementation.
3.4.2 Seed Quality Classification
Seeds are divided into three levels according to the germination rate, purity, and water content indexes. See Table 1 for quality classification indexes.
Table 1 Quality classification of Phoebe bournei seeds
Seed level Ⅰ level Ⅱ level Ⅲ level
Clarity (%) > 98 > 95 > 90
Germination rate (%) > 90 > 80 > 70
Water content (%) 40 ～ 46 40 ～ 46 40 ～ 46
3.5 Seed storage
Seeds should be harvested and planted. If the seed cannot be sown immediately, the seeds should be stored in sand at room temperature in time, the seed-sand ratio is about 1. 3, and the seeds are water-containing.
The amount should be kept above 40%. The humidity of the fine sand is determined by the storage time. When it is stored for more than 20 days, the humidity of the fine sand is the degree of wetness.
When stored for less than 20 days, the humidity can be appropriately increased.
4 Seedlings
4.1 Nude root seedlings
4.1.1 Nursery land selection
The nursery ground should be dry land with moist, fertile soil, close to water sources, better shade conditions, forest climate and convenient transportation.
Not suitable for continuous cropping.
4.1.2 Bed preparation
Combined with ploughing and whole raking, 750 kg of fully-fermented organic fertilizer and 300 kg to 450 kg of compound fertilizer were sprinkled per hectare. Make bed
The soil mass is broken into pieces. The bed width is 1 m, the bed height is 25 cm to 30 cm, and the trail width is 25 cm. versus
The bed width is parallel to a seeding ditch of 2 cm to 3 cm deep with a row spacing of 25 cm.
4.1.3 Live Seedling
4.1.3.1 Seed germination
After the ground is leveled, a shading net with a shading degree of more than 70% is laid on it, and sand with a thickness of 10 cm to 15 cm is laid on the net to make about 1 m.
Wide germination bed. Spread the seeds evenly on the germination bed, cover with 2 to 3 cm thick sand, and wet the bed to keep it moist.
4.1.3.2 Sowing time
Mid-June to late July.
4.1.3.3 Seeding volume
The appropriate seeding rate is (130 kg to 170 kg)/hm2.
4.1.3.4 Seeding
Broadcast. Seeds that were exposed after germination were sown into the sowing ditch with a row spacing of 6 cm to 8 cm and covered with a fine yellow heart soil with a thickness of 1 cm to 2 cm.
After covering the soil, cover the planting ditch or planting bed with straw or other crop stalks. Then the seedbed is watered in 2 to 3 times.
4.1.3.5 Remove Cover
After the seed germination seedlings are unearthed, the cover should be removed in time and placed in the rows of seedlings.
4.1.4 Seedling transplanting
4.1.4.1 Preparation of transplant bed
3 d to 5 d before transplanting, prepare the bed and make the bed flat, and lay 2 cm to 3 cm thick yellow heart soil on the bed, and cover it with an agricultural film.
1 to 2 days before transplanting, water the seedbed once.
4.1.4.2 Setting up a canopy
Before transplanting the sprouts, set up a shade shelter with a light transmittance of 60% to 70% in time, and the height of the shade shelter is 1.5 m to 1.8 m.
4.1.4.3 Sprout cutting and transplanting
After the sprouts unfolded the first true leaf on the germination bed, the sprouts were gently pulled up, 1/3 of the main root was cut off, and the yellow mud was covered. Seedling transplanting line
The distance is about 25cm, and the plant distance is 6cm ~ 8cm. When planting seedlings, roots must be reached and the seedlings must be firm.
4.1.4.4 Bed Cover
After transplanting, it is better to cover the straw or sprinkle the husk between the rows, and it is better not to see the soil.
4.1.4.5 Watering
On the day of transplantation, spray water with spray nozzles 2 to 3 times; within 15 days after transplanting, spray water sprays 2 to 3 times a day to increase air
Humidity; after the new roots grow, water them in a timely manner according to the requirements of field seedlings.
4.1.5 Seedling management
4.1.5.1 Migration
Transplanted the following spring. The transplanted plant spacing is 8 cm to 10 cm, and the row spacing is 25 cm to 30 cm.
4.1.5.2 Water and fertilizer management
In May of the year of transplantation, the fertilizer was topdressed once, and 0.2% urea was sprayed. After early October, watering should be controlled.
4.1.5.3 Weeding
Use manual weeding.
4.1.5.4 Pest and disease control
For pest control methods, refer to Appendix E in GB 6001.
4.2 Container Nursery
4.2.1 Seedbed establishment
The specifications of nursery beds are the same as 4.1.2.
4.2.2 Matrix selection and formulation
The following three types of nursery substrates can be selected according to local conditions.
a) Phosphate fertilizer and plant ash are added to yellow heart soil with a mass ratio of 98. 1. 1;
b) direct use of woodland humus;
c) Based on the bark, sawdust, straw, chaff and other agricultural and forestry wastes that have been fully decomposed and used as substrates, the volume ratio of calcium, magnesium and phosphorus to the yellow heart soil is calculated by volume.
65. 30. 5 is formulated into a light matrix.
4.2.3 Container bag selection and specifications
8 cm × 8 cm nutrition cups are suitable for containers with a substrate of yellow heart soil and humus; 6 cm × 8 cm containers with a light substrate
Non-woven mesh bag is suitable.
4.2.4 Sprout transplantation
Sprout the shoots to a height of 1.5 cm to 2 cm above the ground, cut off 1/3 of the root length, and transplant them to a container filled with substrate
in. Refer to 4.1.4.3 for transplanting method.
4.2.5 Watering
Refer to 4.1.4.5.
4.2.6 Fertilization
In the year of breeding, no fertilization is required. When the spring seedlings started to grow in the following spring, 0.2% urea was sprayed in multiple times in a timely manner. Not suitable for use after the end of August
Nitrogen fertilizer.
4.2.7 Pest and disease control
Refer to 4.1.5.4.
4.2.8 Container movement
After the peak period of seedling growth is over, the container bag is moved to a different position, and the root system that is tied into the seedbed is cut with a branch shear.
5 Seedling investigation, classification, and nursery
5.1 Seedling investigation
In late November of the year of the transplantation, the top buds of the seedlings were investigated after investigation. The investigation method was implemented with reference to GB 6000.
5.2 Seedling classification
See Table 2 for quality classification indexes of Phoebe bournei seedlings.
Table 2 Quality classification table of Phoebe bournei seedlings
Seedling types
Seedling index
Seedling age
(A)
Miao Gao
(Cm)
Ground diameter
(Cm)
Root length
(Cm)
> 5cm length Ⅰ side number
(root)
Comprehensive control indicators
Naked root seedlings
Live seedlings
Ⅰ level 2-0 > 40 > 0.5 > 25 4 ～ 6
Miao stem straight, single master
Dry, normal color, top
Buds full and fully woody
No damage, no disease
Pest
Ⅱ level 2-0 25 ～ 40 0.3 ～ 0.5 20 ～ 25 3 ～ 5
Sprout transplanted seedlings
Class I 2-0 > 40 > 0.6 > 25 6 ～ 8
Ⅱ level 2-0 25 ～ 40 0.4 ～ 0.6 20 ～ 25 4 ～ 6
Container seedlings
Class I 2-0 > 35 > 0.4
Ⅱ level 2-0 25 ～ 35 0.3 ～ 0.4
5.3 Seedlings out of the nursery
5.3.1 Nude root seedlings out of the nursery
Spray or irrigate the seedbed once per day for 1 to 2 days before emergence. When raising seedlings, use a tooth harrow to dig up the seedlings and bundle them into 50 or 100 plants.
Cover the roots with yellow mud. For other related contents, refer to GB 6001.
5.3.2 Container Seedlings
2 d before going out of the garden, water the container seedlings once. Fill the required container seedlings into seedling frames, seedling bags or seedlings (paper) in a certain amount.
Box, package. Count the number of seedlings.
6 File creation
The establishment of nursery file is implemented with reference to LY/T 2280.
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