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Techniques regulation of cultivation for juglans nigra
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LY/T 1909-2010
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Basic data | Standard ID | LY/T 1909-2010 (LY/T1909-2010) | | Description (Translated English) | Techniques regulation of cultivation for juglans nigra | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B61 | | Classification of International Standard | 65.020.20 | | Word Count Estimation | 8,868 | | Date of Issue | 2010-02-09 | | Date of Implementation | 2010-06-01 | | Regulation (derived from) | State Forestry Administration Notice 2010 No. 2; industry standard filing Notice 2010 No. 5 (No. 125 overall) | | Issuing agency(ies) | State Forestry Administration | | Summary | This standard specifies the production of American black walnut seedlings selection, site selection, site preparation, PLANTING, cultivation and management, pest control and other technical requirements. This standard applies to American black walnut PLANTING and cultivation management. | LY/T 1909-2010: Techniques regulation of cultivation for juglans nigra---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.
Techniques regulation of cultivation for juglans nigra
ICS 65.020.20
B61
People's Republic of China Forestry Industry Standard
American black walnut cultivation technical regulations
Released on.2010-02-09
2010-06-01 implementation
State Forestry Administration released
Foreword
Appendix A of this standard is an informative annex.
This standard was proposed by the Henan Provincial Forestry Department.
This standard is under the jurisdiction of the State Forestry Administration.
This standard is drafted by. Henan Forestry Technology Extension Station.
Participated in the drafting of this standard. Luoyang Forestry Technology Extension Station and Luoning County Forestry Technical Guidance Station.
Drafters of this standard. Kong Weihe, Shang Zhonghai, Li Guizhen, Zhang Yujie, Yang Hongyi, Xu Yucheng, Yang Yanli, Zhong Xian, Yang Yujin, Wang Zejun,
Li Jingjing, Ru Yan, Yin Hui, Zhang Wanjun.
American black walnut cultivation technical regulations
1 Scope
This standard specifies seedling selection, site selection, land preparation, seedling afforestation, tending management, pest control, etc. in the production of black walnut in the United States.
skills requirement.
This standard applies to the afforestation and cultivation management of black walnut in the United States.
2 Terms and definitions
The following terms and definitions apply to this standard.
2.1
From seed formation of seedlings (or sprouting seedlings) to trees before the age of 3, or after afforestation to the third year.
2.2
After the seedlings survived, they went to the forest before the forest was closed.
2.3
After the forest was closed, the forest was closed to the fifth year.
2.4
The appearance and structure of the forest are roughly shaped, and the trees are transferred from the fast-growing period of tree height and diameter to the fast-growing forest of the trunk volume.
2.5
From the morphological point of view, the individual trees increase to a certain extent, the high growth begins to slow down or even stagnate, and the crown amplitude has a large extent expansion.
The steps become blunt or umbrella-shaped, the transmittance under the forest increases, the undergrowth and the living habitat are well developed, and the biodiversity within the forest is at a peak. From life
In terms of long growth, the growth of forest trees is gradually stopped, and the diameter growth maintains a large amount of growth during a considerable period of time.
The biomass growth tends to be the peak of the forest.
3 seedling selection
Choose high-quality seedlings cultivated from mature seeds in the mother tree. Use annual seedlings or annual grafted seedlings (one year root year
Dry) Afforestation, the seedlings are straight and straight, the color is normal, fully lignified, the top buds are full and strong, no mechanical damage, no quarantine pests and diseases;
100cm or more, the ground diameter is 1.50cm or more, the main root length is 40cm or more, more than 20 first-degree lateral roots are more than 5cm long, and the root width is 40cm.
on.
4 Site selection
The rainfall is 500mm~1800mm, the frost-free period is more than 140 days, the thickness of the soil layer is more than 50cm, the slope is to the north slope or the east slope, and the middle and lower slopes
Position, loam, sandy loam and silt soil, pH 6.5 ~ 7.5, the texture of loose, fertile, well-drained forest land can be used as a forest.
5 Site preparation
The soil preparation time is after freezing in the autumn and winter soils before or after the spring. Adopting hole-like land preparation method, planting hole size 80cm×80cm
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