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
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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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