LY/T 1909-2010 English PDF
Basic dataStandard 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 ForewordAppendix 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 regulations1 ScopeThis 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 definitionsThe 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 selectionChoose 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 selectionThe 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 preparationThe 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 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of LY/T 1909-2010_English be delivered?Answer: Upon your order, we will start to translate LY/T 1909-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of LY/T 1909-2010_English with my colleagues?Answer: Yes. The purchased PDF of LY/T 1909-2010_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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