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Method for cultivating strong seedlings of oak tree species by grafting method

A technology of tree species, Quercus, which is applied in the field of cultivating strong seedlings of Quercus species by grafting, can solve the problems of increasing the number of roots of Quercus species seedlings, and achieve the effects of improving survival rate, strong environmental adaptability, and expanding root system

Inactive Publication Date: 2021-07-13
河北省林业和草原科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few technical reports on increasing the number of roots in seedlings of Quercus species

Method used

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  • Method for cultivating strong seedlings of oak tree species by grafting method
  • Method for cultivating strong seedlings of oak tree species by grafting method
  • Method for cultivating strong seedlings of oak tree species by grafting method

Examples

Experimental program
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Effect test

Embodiment 1

[0047] The method for cultivating strong seedlings of oak tree species in this embodiment includes three parts: nursery stock preparation, grafting, and post-grafting management, which are respectively operated in the following manner.

[0048] Seedling preparation: adopt the method of sowing and raising seedlings, collect fresh and plump oak seeds in the autumn of the first year, after insecticide and water selection, use hole sowing method to sow and raise seedlings, sow 4 seeds in each hole, and the seeds in each hole are piled up in small piles Place next to each other without leaving gaps. After the seeds emerge in the second year and grow to 4-5 true leaves, select 2 robust growth, more consistent growth heights and the closest seedling spacing in each hole as the later cultivation target, and remove other redundant seedlings. Timely watering after thinning, strengthen daily management.

[0049] Grafting: Grafting is carried out in June-July of the second year of sowing...

Embodiment 2

[0056] The difference from Example 1 is that the seedlings used in this example are seedlings that are scattered and planted in holes. After emergence in the second year, the stems of the seedlings with the same growth height are selected and planted next to each other. Grafting is carried out after the growth is vigorous. nurture.

Embodiment 3

[0058] The difference from Embodiment 1 is that in this embodiment, the incision widths of the two seedlings are inconsistent due to errors in the operation. At this time, only one side is aligned and tightly connected. That is, after spraying the growth-promoting agent solution, one side edge of the incision of one seedling is aligned with the edge of the other side of the incision of the other seedling, and then wrapped tightly with plastic film strips.

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Abstract

The invention relates to a method for cultivating strong seedlings of oak species by a grafting method, which comprises the following steps: respectively forming wound surfaces at equal-height opposite positions of two adjacent seedlings, spraying a growth promoter to the wound surfaces, tightly adhering the wound surfaces of the two seedlings, and wrapping and binding the wound surfaces by using a plastic film so as to joint the two seedlings into a whole in the wound surface tissue healing process, removing part of the top tip of one of the two plants with weaker growth vigor to form rootstock seedlings, and reserving the plant with better growth vigor as a cultivated plant; and performing grafting final-period management, including only reserving terminal buds of rootstock seedlings, spraying foliar fertilizer, cutting stems of the rootstock seedlings in batches after grafting unions are healed so as to enable the top ends of the grafted seedlings to have outstanding growth advantages, performing root cutting, foliar fertilizer and water and fertilizer management once after grafting, and finally obtaining the grafted seedlings with two sets of root systems and one trunk. The number of roots is greatly increased, the problem that the number of roots in the oak seedling stage is too small is solved, the strong oak seedlings which grow fast and are high in environment adaptability are cultivated, and the survival rate of the transplanted oak seedlings is increased.

Description

technical field [0001] The invention relates to the technical field of tree species cultivation, in particular to a method for cultivating strong seedlings of oak tree species by grafting. Background technique [0002] Oak tree species are important native afforestation tree species in my country. Quercus is a taproot plant with well-developed main roots and few lateral roots and fibrous roots. In the seedling stage, due to the lack of absorption roots, insufficient supply of nutrients is prone to occur, resulting in poor growth or even death, especially for transplanted young trees. In order to improve the survival rate of transplanted saplings, it is necessary to take measures to increase the number of roots of the seedlings, promote the root system of the seedlings to absorb more nutrients from the planting soil to achieve the purpose of strong seedlings. However, there are few technical reports on increasing the root number of seedlings of Quercus species. Contents of...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G2/30A01G7/06C05F11/00C05G5/20
CPCA01G17/005A01G2/30A01G7/06C05F11/00C05G5/20
Inventor 尤海舟李金霞赵广智高云昌王超马增旺赵国华曹萌萌李冬梅李厦娄莹莹吕文辉
Owner 河北省林业和草原科学研究院
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