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Soil conditioner applicable to deteriorated grassland and preparation method

A soil conditioner, a technology for degraded grassland, applied in chemical instruments and methods, soil conditioning materials, applications, etc., can solve the problems of long AMF cultivation period, general compatibility, and unfavorable large-scale production, and achieve the promotion of forage growth and mitigation. Soil hazard, low production cost effect

Inactive Publication Date: 2016-02-03
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combined bacterial agent in this patent is applied to the decomposition of organic phosphorus residues. In this invention, activated carbon is used as a carrier. The compatibility between activated carbon and organisms is generally high and the cost is high. In this patent, AMF is used in a large amount, and the cultivation period of AMF Longer, not conducive to industrialized mass production

Method used

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  • Soil conditioner applicable to deteriorated grassland and preparation method
  • Soil conditioner applicable to deteriorated grassland and preparation method
  • Soil conditioner applicable to deteriorated grassland and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A soil conditioner suitable for degraded pastures is prepared by uniformly mixing the following components in parts by weight:

[0034]

[0035] The specific implementation steps are as follows:

[0036] (1) Substrate pretreatment: Add calcium carbonate to the ground peat soil powder according to the mass ratio of 1:9 to adjust its pH value to 6.5-7.5, vibrate the peat soil powder through a standard sieve with a diameter of 0.35mm, and heat it under high pressure at 121°C (1.034 ×10 5 Pa) Sterilize for 20-30 minutes, twice, dry for later use.

[0037](2) Preparation of AM fungal agent: put sandy soil into a brown plastic basin after moist heat sterilization, and put the spores of arbuscular mycorrhizal fungus (AMF) Glomusmosseae (separated and preserved in Qingdao Agricultural University, preservation number: Gm32) Add it into the sand and sow clover, cultivate it for 3-5 months under the condition of solar greenhouse, and use the culture substrate containing propa...

Embodiment 2

[0059] In this embodiment, a soil conditioner suitable for degraded pastures is prepared by uniformly mixing the following components in parts by weight:

[0060]

[0061] Among them, the bacterial content of PGPR liquid bacterial agent is 1×10 8 CFU / mL, the IPU quantity of the AM fungal inoculum inoculum is 14000IPU / mL.

[0062] The method for preparing a soil conditioner suitable for degraded pastures in this example is basically the same as in Example 1, and the conditioner obtained has obvious improvement effects on soil physical indicators, soil chemical indicators, soil biological indicators and soil enzyme activity indicators.

Embodiment 3

[0064] In this embodiment, a soil conditioner suitable for degraded pastures is prepared by uniformly mixing the following components in parts by weight:

[0065]

[0066] Among them, the bacterial content of PGPR liquid bacterial agent is 1×10 8 CFU / mL, the IPU quantity of the AM fungal inoculum inoculum is 14000IPU / mL.

[0067] The preparation method of the soil conditioner suitable for degraded pastures in this example is basically the same as in Example 1, and the conditioner has obvious improvement effects on soil physical indicators, soil chemical indicators, soil biological indicators and soil enzyme activity indicators.

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Abstract

The invention discloses an environment-friendly soil conditioner, in particular a soil conditioner applicable to deteriorated grassland. The soil conditioner, namely a combined modifier, is prepared according to a preparation method mainly comprising the step of mixing an arbuscular mycorrhizal fungus (AM fungus), a plant growth-promotiong rhizosphere (PGPR) liquid inoculant, humic acid and a matrix. The combined modifier is utilized for improving soil in the deteriorated grassland, can effectively improve the soil physicochemical properties, enhance the soil biological activity, and release the soil fertility, and is environmentally friendly; the preparation method is simple in technical procedure and suitable for industrialized production.

Description

technical field [0001] The invention relates to the field of grassland degraded soil improvement, in particular to a soil improver suitable for degraded grasslands. Background technique [0002] Grassland ecosystems, for maintaining global CO 2 Emission balance and effective mitigation of global climate change are of great significance. It is not only an important animal husbandry production base, but also an important ecological barrier. The Hulunbeier Grassland in Inner Mongolia is the first of the five major grasslands in my country. However, due to the use of overloaded grazing and extensive management, the three transformations (degradation, desertification, and alkalization) of the grassland have become increasingly serious. The degraded area of ​​the grassland has reached 4.83 million hectares, accounting for 42% of the total grassland %. [0003] At present, the commonly used physical and chemical improvement methods, such as fencing, shallow plowing and light harro...

Claims

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Application Information

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IPC IPC(8): C09K17/00
Inventor 寇书萌尤金成郭明英肖明
Owner SHANGHAI NORMAL UNIVERSITY
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