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Method for wintering and frost protection of vetiver grass in north

A technology of vetiver grass and biochar, applied in botany equipment and methods, lawn growth, plant protection cover, etc., to reduce soil compaction, improve soil microenvironment, overwintering survival rate and biomass increase

Inactive Publication Date: 2018-10-19
东营国科生态环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is exactly for the above-mentioned defect that prior art exists, provides a kind of method that vetiver survives the cold in the north, and this method can solve the problem that southern tropics, subtropical perennial herbs survive the winter outdoors in the north, utilize this technology to be able to Successfully moved the adaptable growth range of vetiver with large biomass, salt-alkali tolerance, high protein content and good economic benefits to the north of the Yangtze River

Method used

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  • Method for wintering and frost protection of vetiver grass in north
  • Method for wintering and frost protection of vetiver grass in north
  • Method for wintering and frost protection of vetiver grass in north

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Effect test

Embodiment 1

[0031] Embodiment 1, the method that a kind of vetiver mentioned in the present invention survives the winter and prevents cold in the north, comprises the following steps:

[0032] (1) After the outdoor temperature drops below zero, water the cultivation site once;

[0033] (2) Cut the vetiver to 3-10cm from the ground, without damaging the rhizome of the vetiver;

[0034] (3) Cover the top and surrounding of the vetiver grass with biochar, and then cover the soil completely, covering the biochar completely, covering the surface of the vetiver grass with a thickness of 10cm of biochar, and then covering the soil with 10cm;

[0035] (4) On the 10th day after Qingming, remove the covering soil, leave biochar in the cultivation ground, and water once thoroughly to promote the germination of vetiver.

[0036] Among them, the biochar is made of 55% tamarisk, 23% white elm, and 22% white wax. The acidic biochar species produced by cracking at 650°C under anaerobic conditions conta...

Embodiment 2

[0045] Embodiment 2, the method that the vetiver mentioned in the present invention survives the winter and prevents cold in the north, differs from Embodiment 1 in that:

[0046] The biochar of the present invention is an acidic biochar variety made by mixing 48% tamarisk, 29% cotton straw and 23% reed under anaerobic conditions at 600°C, containing 56% elemental carbon and small molecular organic carbon 21%, with a particle size of 1-5um, it can increase the ground temperature by more than 4.5°C.

[0047] The present invention finally covers the surface of the vetiver with a thickness of 10 cm of biochar, and then covers 10 cm of soil.

[0048] The present invention uses biochar to cover the vetiver grass. Since the biochar has good effects of fertilizer retention, slow release, and water control, and the pH value is acidic, it is suitable for saline-alkali soil. In addition, because it is rich in nutrients such as humic acid, nitrogen, phosphorus, and potassium, it can be ...

Embodiment 3

[0050] Embodiment 3, the method that the vetiver mentioned in the present invention survives the winter and prevents cold in the north, differs from Embodiment 1 and 2 in that:

[0051] In the biochar mold adopted in the present invention, an auxiliary return spring 11 is installed at the rotating shafts of the two semicircular horizontal covers 2. The advantage of this structure is that the expanded horizontal cover can be restored to its original position more easily, and the next step can be carried out. Biochar mulch work of a group of vetiver.

[0052] Due to the high cost of using biochar, in order to ensure the large-scale use and promotion of biochar in the work of vetiver cold protection, the present invention uses a special biochar mold for the covering process of biochar, which effectively reduces the cost of biochar. The amount of application reduces the covering cost by 60%, which creates a premise for the promotion of biochar.

[0053] Main technical indicators ...

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Abstract

The invention relates to a method for wintering and frost protection of vetiver grass in the north. According to the technical scheme, the method includes the following steps that (1), after the outdoor temperature is reduced below zero, cropland is subjected to permeable irrigation once; (2), the vetiver grass is cut till the vetiver grass is 3-10 cm away from the ground, and the rhizomes of thevetiver grass are not damaged; (3), the upper portion and the periphery of the vetiver grass are covered with charcoal, then comprehensive earthing is carried out, and the charcoal is completely covered with earth; (4), on the tenth day after the tomb sweeping day, the earth is removed, the charcoal is left in the cropland, complete watering is carried out once, and germination of the vetiver grass is promoted. The method has the advantages that by means of the method, the wintering survival rate of the vetiver grass can be increased to 95% or above, the wintering survival rate of cultivated seedlings in control treatment is zero, compared with a traditional charcoal material, the vetiver grass is subjected to frost protection treatment in a charcoal mode by means of the method, the biomass is increased to 8 tons per mu from 3 tons per mu after wintering, and the wintering survival rate and the biomass are both remarkably increased.

Description

technical field [0001] The invention relates to a method for overwintering vetiver in the north and in particular to a method for overwintering the vetiver in the north. Background technique [0002] Vetiver (Vetiveria zizanioides) belongs to the Poaceae Vetiver genus and is a perennial herb. It is a forage grass for herbivores such as poultry, beef cattle, and sheep. It has a high protein content. Because of its well-developed root system and deep underground development, it has been favored by countries all over the world since the 1980s and has become a well-known soil and water conservation plant. and slope fixed plants. Vetiver is mainly used for engineering protection and soil erosion control of farmland, slopes, roads, railways, embankments and industrial and mining sites, and has a purifying effect on heavy metal pollution and eutrophication of water bodies. It can also be used as forage, fuel, cultivation of edible fungi, papermaking and weaving handicrafts, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/02A01G20/00
CPCA01G13/0262A01G20/00
Inventor 宿静张栩铭
Owner 东营国科生态环境工程有限公司
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