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NY/T 3252.3-2018 PDF in English


NY/T 3252.3-2018 (NY/T3252.3-2018, NYT 3252.3-2018, NYT3252.3-2018)
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NY/T 3252.3-2018: PDF in English (NYT 3252.3-2018)

NY/T 3252.3-2018
NY
AGRICULTURE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 65.020.01
B 30
Industrial Hemp Seed - Part 3: Technical Code of
Practice for the Production of Conventional Variety
Seed
ISSUED ON: JULY 27, 2018
IMPLEMENTED ON: DECEMBER 01, 2018
Issued by: Ministry of Agriculture and Rural Affairs of PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Basic Requirements ... 5
5 Seed Production ... 5
6 Harvesting, Post-Harvesting Treatment and File Establishment ... 8
7 Packaging, Labeling and Storage ... 8
Industrial Hemp Seed
– Part 3: Technical Code of Practice
for the Production of Conventional Variety Seed
1 Scope
This Part specifies the terms and definitions, basic requirements, seed production,
harvesting, post-harvesting treatment and file establishment, packaging, labeling and
storage for the breeding of the conventional industrial hemp seeds.
This Part is applicable to the breeding and production for the basic seeds and qualified
seeds of the conventional industrial hemp seeds.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this document.
NY/T 3252.1 Industrial Hemp Seed - Part 1: Definition of Industrial Hemp Variety
NY/T 3252.2 Industrial Hemp Seed - Part 2: Seed Quality
3 Terms and Definitions
For the purpose of this document, the following terms and definitions apply.
3.1 Basic seed
Seeds that are produced with the pre-original seed according to the technical
regulations for the production of the original seed, have the typical traits of the variety,
and is genetically stable.
3.2 Qualified seed
The first generation of industrial hemp seeds that are bred from the original seeds for
field production.
b) The previous crop of the plot shall be other crops or industrial hemp of the same
variety, the same level and above.
5.3 Cultivation management
5.3.1 Site preparation
Before planting, deep plowing, fine raking and leveling the breeding land.
5.3.2 Base fertilizer
Fertilization shall be based on the soil fertility status. For medium fertility soil, apply
12kg~14kg of urea, 20kg~22kg of superphosphate, 7kg~9kg of potassium sulfate or
compound fertilizer with the same content per 667m2. In areas where conditions permit,
apply additional 800kg~1000kg of farmyard manure per 667m2.
5.3.3 Sowing
5.3.3.1 Sowing period
From the first-ten days of February to the first-ten days of June, sow when it is suitable
for seed germination according to the climate and soil conditions in the north and south.
In areas with relatively dry soil, sow at 2d ~ 15d before the rainy season; or sow after
the rain soaked into the soil and keep the soil moisture.
5.3.3.2 Sowing method
Use mechanical dibbling or artificial pond (hole) sowing, the sowing depth is 3cm~5cm.
5.3.3.3 Planting density
Early-maturing varieties should have 4000~6500 effective plants per 667m2; while the
late-maturing varieties should have 2500~3000 plants. The lower limit should be taken
when the plot fertility is good; and the upper limit should be taken when the plot fertility
is normal.
5.4 Field management
5.4.1 Thinning
According to the emergence of the seedlings, thinning is carried out in the third pair of
true leaf stage; and the thinning is carried out in the principle of "pulling the strong,
removing the weak and retaining the middle", so that remove the too strong seedlings,
the weak seedlings that are damaged by pests and diseases, deformed seedlings and
miscellaneous plants. Set seedlings from 3~4 plants for each pond (hole). For the small
seedlings that are damaged by pests and diseases and miscellaneous plants, they
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Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.