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A kind of forest harvesting residue seedling cultivation substrate suitable for fast-growing forest seedling cultivation and its preparation method

A seedling raising substrate and residue technology, which is applied in forestry seedling raising and agricultural fields, can solve the problems of low utilization rate and environmental pollution, and achieve the effects of high production efficiency, low cost and convenient operation

Inactive Publication Date: 2016-08-31
HUNAN ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the utilization rate of forest logging residues in my country is low. A large amount of logging residues are picked up by local forest farmers and used as household fuel. They are mainly burned before new afforestation to clean up the logging sites, thereby emitting a large amount of carbon dioxide and smog into the air. smog, seriously pollutes the environment
And it is an important way to use it as a substrate for seedling cultivation, which is an important way to utilize the ideal residue, and there has been no relevant report before.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The seedling-raising matrix formula of the present embodiment is: the fermented product of forest felling residue, the compound fertilizer special for forestry volume ratio is 8:2. The preparation method is as follows:

[0025] (1) Fermentation of forest felling residues: Put the crushed (120 mesh) masson pine forest cutting residues (including branch wood, leaves and understory accumulations, etc.), water and pig and cow dung in a weight ratio of 12:20:2 Put into a small-scale temperature-controlled fermentation equipment, ferment for 7 days at a high temperature of 70°C, 14 days at a medium temperature of 55°C, and post-ripen at a room temperature of 20-30°C for 80 days, take it out and dry it at 60-80°C;

[0026] (2) Fermentation product rinsing: Using saturated extraction method, the fermentation product is leached to about pH 6.5 and EC 2.5mS / cm (25°C). Fully absorbed by the seedlings; take it out and place it on a plastic film, and dry it in a ventilated state to...

Embodiment 2

[0036] The seedling-raising matrix formula of the present embodiment is: the fermented product of the forest felling remnants, and the special compound fertilizer for forestry have a volume ratio of 8.5:1.5. Its preparation method is as follows:

[0037] (1) Put the crushed alder forest logging residue (80 mesh), water and pig and cow manure in a small temperature-controlled fermentation equipment at a weight ratio of 10:15:3, ferment at a high temperature of 75°C for 6 days, and at a medium temperature of 65°C for 10 days. day, 20-30°C room temperature post-ripening fermentation for 85 days, take out and dry;

[0038] (2) Using the saturated extraction method, rinse the fermentation product to about pH 6.5, EC 2.5mS / cm (25°C), take it out and place it on a plastic film, and dry it in a ventilated state;

[0039] (3) Preparation of special compound fertilizer for Chinese fir tree species: mix ammonium sulfate, potassium sulfate, general calcium, rice bran, weight 47.6:18.0:20...

Embodiment 3

[0048] The seedling-raising matrix formula of the present embodiment is: the fermented product of the forest felling remnants, and the special compound fertilizer for forestry have a volume ratio of 7.5:2.5. Its preparation method is as follows:

[0049] (1) Put crushed poplar grove harvesting residues (180 mesh), water, and pig and cow dung in a weight ratio of 15:25:1 into a small-scale temperature-controlled fermentation equipment, ferment at a high temperature of 65°C for 8 days, and at a medium temperature of 50°C for 15 days. 20-30°C post-ripening fermentation at room temperature for 75 days, take out and dry;

[0050] (2) Using the saturated extraction method, rinse the fermentation product to about pH 6.5, EC 2.5mS / cm (25°C), take it out and place it on a plastic film, and dry it in a ventilated state;

[0051] (3) preparation of special compound fertilizer for eucalyptus species: mix ammonium nitrate, potassium sulfate, common calcium, chicken manure by weight 26.5:2...

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Abstract

The invention relates to a forest logging residue seedling growing substrate which comprises fermented substances of forest logging residues and a special compound fertilizer, wherein the fermented substances of the forest logging residues are fermentation products of the forest logging residues, pig manure and / or cow manure and water, and the special compound fertilizer is prepared from nitrogen, phosphorus, potassium and trace elements according to the amount needed by different seedlings. The seedling growing substrate disclosed by the invention is suitable for growing seedlings, can meet the nutritional requirements of fast-growing wood seedlings of a commercial forest of forestry and has the advantages of fully utilizing waste resources of forest logging, alleviating environmental pollution caused by burning a mountain during new afforestation of a cutover land and being beneficial to low-carbon environmental protection.

Description

technical field [0001] The invention belongs to the field of seedling raising in agriculture and forestry, and in particular relates to a seedling raising substrate suitable for raising seedlings of fast-growing forest tree seeds and a preparation method. Background technique [0002] In the 1960s, the composite matrix developed by Cornell University in the United States and the VC culture soil of the University of California used rock wool as the seedling substrate. Cornell University also started the use of vermiculite and peat on the seedling substrate. Municipal waste and river sludge have been used as seedling substrates for seedling cultivation, and the results are ideal. In the 1970s, Pausejovi excavated the use of peat (peat) in soilless cultivation, but in subsequent studies, it was shown that the cultivation effect of peat (peat) as a single substrate is not as good as that of mixed substrates. For example, in the United States, a mixture of 1:1 or 2:1 fine peat a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05F17/00C05F15/00
CPCY02W30/40
Inventor 何洪城刘帅成曾琴吴文文聂晋琳皮兵
Owner HUNAN ACAD OF FORESTRY
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