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GB/T 32771-2016: Tree seedling quality grading of Betula platyphylla Suk.
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32771-2016 | English | 179 |
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Tree seedling quality grading of Betula platyphylla Suk.
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GB/T 32771-2016
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Basic data | Standard ID | GB/T 32771-2016 (GB/T32771-2016) | | Description (Translated English) | Tree seedling quality grading of Betula platyphylla Suk. | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B61 | | Classification of International Standard | 65.020.40 | | Word Count Estimation | 9,977 | | Date of Issue | 2016-06-14 | | Date of Implementation | 2017-01-01 | | Quoted Standard | GB 6000 | | Regulation (derived from) | National Standard Announcement No. 8 of 2016 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the birch afforestation seedling terms and definitions, grading requirements, test methods, inspection rules. This standard is applicable to the fast-growing and high-yield forest of Betula platyphylla suitable forest area. | GB/T 32771-2016: Tree seedling quality grading of Betula platyphylla Suk.---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.
Tree seedling quality grading of Betula platyphylla Suk.
ICS 65.020.40
B61
National Standards of People's Republic of China
Quality grading of birch
2016-06-14 release
2017-01-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the State Forestry Administration and centralized.
This standard is responsible for drafting units. Baishan City Forestry Research Institute.
This standard participates in the drafting unit. Northeast Forestry University, Jilin Forestry Science Research Institute, Beihua University Forestry College, Liaoning Province Forest Management
Institute, Jilin Province Lushuihe Forestry Bureau, Daxinganling Region (Forestry Group) Academy of Agriculture and Forestry Sciences, Baicheng Forestry Science Research Institute, Jilin Province
Baishan City Forestry Bureau, Jilin Province Fusong County Forestry Bureau, Jilin Province Linjiang Forestry Bureau.
The main drafters of this standard. Tian Nianjun, Miao Chunze, Xu Zhigang, Cao Changqing, Liu Xuezhi, Qu Bin, Fu Feng, Liu Dan, Li Rengui, Zhao Yu,
Song Weidong, Pang Weizhong, Zhang Yonghong, Liu Zenian, Zhao Yifa, Zhao Kun, Zhang Jinbo, Wang Hao, Jia Shichang.
Quality grading of birch
1 Scope
This standard specifies the term and definition, grading requirements, test methods and inspection rules for birch.
This standard is applicable to the construction of fast-growing and high-yielding forest in suitable forest area.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
Grain grading of major afforestation tree species
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Seedling species stocktype
Breeding of seedling groups, such as seedling and wild seedling, according to breeding material and breeding methods.
3.2
Seedling stockage
Age of nursery stock. From sowing to the nursery, the actual growth of nursery stock. The growth year or growth month of the seedlings is the seedling age unit.
Note. Miao age is indicated by Arabic numerals. The number of years after the decimal point, the number of digits after the decimal point; the first number indicates the seedling in the original garden
The number of cultivated ages, the second number indicates the age of the first post-transplant, the interval between the numbers, the sum of the numbers,
age. Such as.
1.0-0 means 1 year old seedling, without transplantation;
1.6-0 means 1 year and 6 months of seeding, without transplantation.
3.3
A batch of seedlings alotofseedings
White birch in the same nursery, with the same batch of breeding materials, using the same nursery technology to cultivate the same age seedlings, known as a number of seedlings (referred to as seedlings
Batch).
3.4
Ground caliper
Seedling intervening diameter, that is, seedling seedling dry base of the thickness of the soil marks.
3.5
Miao high seedingheight
From the ground diameter to the base buds of the length of the dry.
3.6
Root length and root width rootlengthandwitch
The root length and root amplitude retained after rooting.
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