Method for preparing selenium-rich crop cultivation matrix from fruit pomace biomass charcoal

A biochar and cultivation substrate technology, applied in botany equipment and methods, planting substrates, cultivation, etc., can solve the problems of low selenium absorption and conversion rate, improve the absorption and slow release capacity, improve soil fertility, The effect of reducing loss

Inactive Publication Date: 2016-12-07
SUZHOU ACADEMY OF AGRI SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0017] The invention provides a method for preparing a selenium-enriched crop cultivation substrate by using pomace biomass charcoal, the purpose of which is to solve the problem that the existing vegetable cultivation substrate has a low absorption conversion rate of selenium element

Method used

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  • Method for preparing selenium-rich crop cultivation matrix from fruit pomace biomass charcoal
  • Method for preparing selenium-rich crop cultivation matrix from fruit pomace biomass charcoal
  • Method for preparing selenium-rich crop cultivation matrix from fruit pomace biomass charcoal

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Embodiment 1

[0055] Embodiment 1: A kind of method of preparing selenium-enriched crop cultivation substrate with pomace biochar

[0056] The method comprises the following steps in turn:

[0057] The first step is to prepare pomace biochar,

[0058] Put the fruit pomace into the pyrolysis furnace after drying, pass in argon gas to get rid of the oxygen in the pyrolysis furnace, rapidly raise the temperature in the pyrolysis furnace to 100°C within 5 minutes, and then increase the temperature at 1°C / Heating at a heating rate of 1 minute to 550°C and maintaining it for 30 minutes, after naturally cooling to room temperature, collecting the biomass, pulverizing, and passing through a 60-mesh sieve to obtain pomace biochar; the pomace is selected from apple pomace, pear pomace at least one of pomace, peach pomace, strawberry pomace, kiwi fruit pomace, grape pomace, watermelon pomace, banana pomace and pineapple pomace; before being put into the pyrolysis furnace, the pomace is air-dried unt...

Embodiment 2

[0072] Embodiment 2: A kind of method of preparing selenium-enriched strawberry cultivation substrate with pomace biochar

[0073] The method comprises the following steps in turn:

[0074] The first step is to prepare pomace biochar,

[0075] Put the fruit pomace into the pyrolysis furnace after drying, feed argon gas to get rid of the oxygen in the pyrolysis furnace, rapidly raise the temperature in the pyrolysis furnace to 105°C within 5 minutes, and then increase the temperature at 1°C / Heat up to 600°C at a heating rate of 1 minute, and keep it for 25 minutes. After naturally cooling to room temperature, collect the biomass, pulverize it, and pass it through a 60-mesh sieve to obtain pomace biochar;

[0076] The second step is to prepare selenium nutrient solution,

[0077] Analytical pure Na 2 SeO 3 Dissolve it with water at a weight ratio of 1:30 to make a selenium salt solution, and then add dilute hydrochloric acid to the selenium salt solution to adjust the pH of...

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Abstract

A method for preparing a selenium-rich crop cultivation matrix from fruit pomace biomass charcoal sequentially comprises the following steps: 1, preparing fruit pomace biomass charcoal; 2, preparing a selenium nutrient solution; 3, preparing selenium-rich charcoal: (1) preparing heated selenium-rich charcoal; (2) preparing normal-temperature selenium-rich charcoal; (3) mixing the heated selenium-rich charcoal with the normal-temperature selenium-rich charcoal to prepare the selenium-rich charcoal; 4, preparing a modified starch adhesive; 5, preparing a selenium charcoal granule; 6, taking the selenium-rich charcoal and the selenium charcoal granule, mixing the selenium-rich charcoal and the selenium charcoal granule, sending the obtained mixture to a granulator, and granulating the mixture; and 7, stirring granules prepared in step 6 and a crop soilless cultivation matrix filler until the granules and the filler are uniform in order to obtain the selenium-rich crop cultivation matrix. The selenium-rich crop cultivation matrix prepared through the method improves the selenium element absorption and conversion rate of crops, and slowly and uniformly releases the selenium element in the whole growth cycle of the crops.

Description

technical field [0001] The invention relates to a soilless cultivation substrate and a preparation method thereof, in particular to a method for preparing a selenium-enriched crop cultivation substrate by using pomace biochar. Background technique [0002] Selenium is an essential trace element for the human body, and it is the active center of glutathione peroxidase (GSH-Px). Supplementing selenium in an appropriate amount can enhance the body's immunity, delay aging, and prevent and fight cancer. However, my country is a selenium-deficient country, and selenium-enriched agricultural products are an effective way for the human body to supplement selenium. Selenium in vegetables is divided into two categories: inorganic selenium and organic selenium. The former includes selenate, selenite, etc. Inorganic selenium is poorly absorbed by humans and animals, and has a high risk of toxicity. Improper use can easily cause selenium poisoning The latter mainly includes selenoamino ...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01G31/00
CPCA01G24/00C05D9/00C05G3/00C05D9/02C05F11/02Y02P60/21
Inventor 周新伟金梅娟陶玥玥王海候施林林沈明星陆长婴朱兴连
Owner SUZHOU ACADEMY OF AGRI SCI
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