Trunk-burying germination-forcing epicormic branch cuttage raise seedling technique

A technology of twig cutting and germination, applied in the field of plant seedlings, can solve the problems of small reproduction coefficient and difficulty in meeting the needs of afforestation, and achieve the effect of large reproduction coefficient

Inactive Publication Date: 2008-08-20
INST OF FORESTRY CHINESE ACAD OF FORESTRY
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Problems solved by technology

[0004] There are at least the following disadvantages in the above-mentioned prior art: the repr

Method used

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Specific embodiment:

[0021] Seedling selection and germination method:

[0022] The 1-year seedling stems of Populus northeast cultivated by the Heilongjiang Forestry Academy of China were selected. The germination substrate is mixed uniformly with fine river sand and peat soil in a ratio of 1:1, disinfected with one thousandth of carbendazim, and then used for burying and drying for germination. Germination is carried out in the greenhouse, the specification of the greenhouse is 240m 2 ~480m 3 . After leveling the greenhouse, sprinkle carbofuran first to kill underground pests, the dosage is 5g / m 2 (3% granules), spread a layer of unripe pure cow dung with a thickness of about 10cm. Spread a layer of 5cm thick fine sand on the cow dung, and then sprinkle 3% carbofuran and 25% on the fine sand. Carbendazim (1∶1) mixed powder, the dosage is 10g / m 2 , Remove the application evenly, spray clean water once to make the germination frame reach the appropriate temperature. Place the dri...

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Abstract

The invention discloses a seedling culture method of pregermination with buried stems and cutting with twig for aspen, which is as follow: firstly, a layer of cow dung is spread in a germination accelerating bed in a greenhouse; secondly, a layer of accelerating germination substrate is spread; thirdly, seedling stems are laid on the accelerating germination substrate, and then are covered by a layer of accelerating germination substrate; fourthly, the seedling stems are accelerated for germination, wherein, the temperature in the germination accelerating bed is kept between 12 and 25 DEG C; the temperature in the greenhouse is 15 to 30 DEG C; the relative humidity is 75 to 80%; fifthly, when the sprouts are 5 to 15 cm high, the twigs are used for cuttage and are transplanted in the field one month later. The seedling culture method has the advantages of high propagation coefficient and satisfaction for the demand of afforestation.

Description

technical field [0001] The invention relates to a plant seedling raising technology, in particular to a method for accelerating germination and cutting seedling raising of poplar. Background technique [0002] Populus davidiana Dode (Populus davidiana Dode) belongs to the poplar tree species, arbor, up to 25 meters. In China, it is mainly distributed in the northeast, northwest, north, central and southwest alpine regions. It often forms a pure forest or is mixed with Chinese pine, birch, spruce, etc. It is the most widely distributed and largest tree species among poplars, and it is also a mountainous dominant tree species in forest grassland, wet grassland and dry grassland climate zone. ℃ high mountain low temperature, barren resistance, strong drought resistance. [0003] In the prior art, aspen seedlings mainly adopt root tiller seedlings to afforest, and the propagation of seedlings also adopts the method of root section propagation. [0004] The above-mentioned pri...

Claims

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Application Information

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IPC IPC(8): A01G23/00A01G7/00A01G1/00
CPCY02A40/22Y02P60/40
Inventor 张建国
Owner INST OF FORESTRY CHINESE ACAD OF FORESTRY
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