Method for promoting growth of spathiphyllum petite under heavy metal stress

A heavy metal and white palm technology, applied in the field of plant heavy metal stress growth research, can solve the problem of less research

Inactive Publication Date: 2021-03-12
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, at present, there are very few studies on the application of garden plants to beautify and restore the environment in heavy metal polluted areas, and there are even fewer studies on t

Method used

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  • Method for promoting growth of spathiphyllum petite under heavy metal stress
  • Method for promoting growth of spathiphyllum petite under heavy metal stress
  • Method for promoting growth of spathiphyllum petite under heavy metal stress

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A method for promoting the growth of Xiaobaizhang under heavy metal stress, comprising the following steps:

[0028] (1) Preparation of sodium silicate solution

[0029] In a sterile environment, accurately weigh 1.2206g of anhydrous sodium silicate with a ten-thousand-digit electronic balance and pour it into a pre-sterilized beaker filled with deionized water, stir evenly, transfer to a 100ml volumetric flask and dilute to 100ml, prepare 100mM sodium silicate mother liquor for later use.

[0030] (2) Preparation of lead-zinc ore leach solution slightly polluted by heavy metals

[0031] Weigh 5 kg of heavy metal-contaminated lead-zinc ore soil samples crushed in advance and sieved with a 10-mesh sieve in a sterile environment, and distribute them evenly to 5 plastic bottles with 1 L of deionized water sterilized in advance, and mix Stir for 0.5h, then vibrate with an oscillator for 2h, let stand for 0.5h, filter the supernatant with analytical filter paper to obtain ...

Embodiment 2

[0037] A kind of method that promotes the growth of the little white palm under heavy metal stress, is different from embodiment 1, comprises the following steps:

[0038] (1) Preparation of sodium silicate solution

[0039] In a sterile environment, accurately weigh 1.2206g of anhydrous sodium silicate with a ten-thousand-digit electronic balance and pour it into a pre-sterilized beaker filled with deionized water, stir evenly, transfer to a 100ml volumetric flask and dilute to 100ml, prepare 100mM sodium silicate mother liquor for later use.

[0040] (2) Preparation of lead-zinc ore leach solution heavily polluted by heavy metals

[0041] In a sterile environment, weigh 5 kg of lead-zinc ore soil samples crushed in advance and sieved with a 10-mesh sieve, and distribute them evenly to 5 plastic bottles with 1 L of deionized water sterilized in advance, mix and stir 0.5h, then vibrate with an oscillator for 2h, let stand for 0.5h, filter the supernatant with analytical filt...

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Abstract

The invention discloses a method for promoting growth of spathiphyllum petite under heavy metal stress. The method comprises the following steps: selecting a normal soil sample, a soil sample lightly-polluted by lead-zinc ore heavy metal and a soil sample heavily-polluted by lead-zinc ore heavy metal, respectively extracting leaching solutions, and applying exogenous sodium silicate into the leaching solutions; selecting spathiphyllum petite plants with good growth vigor and approximate biomass; culturing the spathiphyllum petite by using the three leaching solutions, placing the spathiphyllumpetite in an environment with scattered light at a windowsill for culturing, performing aeration treatment by using an aerator, and covering each treated culture basin by using black plastic. By means of the method, damage of heavy metal to spathiphyllum petite can be effectively relieved, and the growth of spathiphyllum petite under stress of the lead-zinc ore heavy metal is promoted.

Description

technical field [0001] The invention relates to the technical field of plant growth research under heavy metal stress, and more specifically relates to a method for promoting the growth of the plant under heavy metal stress. Background technique [0002] Soil heavy metal pollution is a serious environmental problem in our country and even in the world. In 2014, the Ministry of Environmental Protection and the Ministry of Land and Resources issued a national soil pollution survey report. The results showed that the national soil environment is not optimistic, and some areas are seriously polluted. The total excess rate of soil pollutants nationwide is 16.1%, and cadmium is one of the main pollutants. The survey results of the Ministry of Agriculture also show that the area of ​​irrigation with pollutants in my country is about 1.4 million hm2, and the land area polluted by heavy metals accounts for 64.8% of the total polluted area. The main heavy metal pollution elements in...

Claims

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Application Information

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IPC IPC(8): B09C1/10
CPCB09C1/105
Inventor 代成龙刘可慧于方明李艺赵珂艺李春明胡杰张海春陶英吴莹欧海媚
Owner GUANGXI NORMAL UNIV
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