JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2014, Vol. 38 ›› Issue (06): 146-152.doi: 10.3969/j.issn.1000-2006.2014.06.028

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Oriented cultivation techniques for leaf-harvest plantation of Ginkgo biloba L.

CAO Fuliang, WANG Guibin, YU Wanwen   

  1. College of Forestry, Nanjing Forestry University, Nanjing 210037, China
  • Online:2014-12-31 Published:2014-12-31

Abstract: Leaves of ginkgo(Ginkgo bilaba L.)is an important material on the production of medicine, food, cosmetic and beverage, and oriented cultivation of ginkgo leaf-harvest plantation can supply high quality material for these industries. Based on cultivating mechanism and the results of research and practice, some key techniques for cultivating leaf-harvest ginkgo(Ginkgo biloba L.)plantation were summarized systematically. The results were as follows: ① Choosing good sites being suitable for ginkgo growing. ② Selecting appropriate ginkgo varieties or clones for various cultivation zones according to their leaf yield and medicinal content. ③ Adopting reasonable planting density producing more leaves and obtain higher medicinal content to meet the need of medicinal industry(suggested density was from 40 000 to 70 000 trees/hm2 according to site condition). ④ Using coppicing management system(cutting strunk once every 4-5 a)to get higher leaf quality(higher medicinal content). ⑤ Organic fertilizer was advocated in leaf-harvesting plantation, and in the early stage of growing, N fertilizer is added to increase leaf yield, and in the late stage of growth, K, P and microelement fertilizer(Mg, Zn and Mo)are added to increased medicinal content. ⑥ Other steps would be taken to promote growth of ginkgo in the early stage of growth, such as enough soil moisture, appropriate temperature and light, and measures adopted to increase medicinal content of ginkgo leaves in the late stage of growth, such as appropriate drought, lower temperature and full light.

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