Acid soil conditioner prepared by biomass power generation waste and preparation method of acid soil conditioner

Abstract

The invention discloses an acid soil conditioner prepared by biomass power generation waste and a preparation method of the acid soil conditioner. The acid soil conditioner comprises the biomass power generation waste, biological black charcoal, adhesive and water. The preparation method includes mixing the biological black charcoal and the biomass power generation waste according to a proportion; adding the adhesive and the water into the mixture; and carrying out granulation by a disc granulating machine. The weight ratio of the biomass power generation waste to the biological black charcoal ranges from 3:1 to 3:2; the adhesive is red soil and accounts for 20-25% of the total weight of the biomass power generation waste and the biological black charcoal; the weight of the added water approximately accounts for 20-30% of the total weight of the biomass power generation waste and the biological black charcoal; and the grain size of the biological black charcoal is smaller than 0.25mm. The pH (potential of hydrogen) of the conditioner prepared by the preparation method is about 9, and the acid soil conditioner is high in water absorption. In addition, the acid soil conditioner and the preparation method have the advantages that the problem of acidification of soil can be solved, and the biomass power generation waste can be sufficiently utilized.

Description

technical field [0001] The invention relates to an acidic soil improver prepared by using biomass power generation waste and a preparation method thereof. technical background [0002] Soil acidification is a natural process in the process of soil formation. In my country, it is generally distributed in tropical and subtropical regions. The soil is red or yellow. Although the colors are different, the two are similar in occurrence and production and utilization. They are collectively classified under the red soil series or Aluminized soil class, the pH of most soils is less than 5.5, a large part of which is less than 5.0, even as low as 4.5 (Liu Chengjun, 2007). The low pH value and high aluminum content of acidified soil are the limiting factors for crop yield. [0003] There are two measures to reduce soil acidification: one is to use alkaline substances as amendments, such as lime, organic fertilizer, zeolite, fly ash, silicon fertilizer, etc., to reduce the acidity of t...

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Problems solved by technology

Its manifestations are as follows: one is that the soil is compacted, which deteriorates the soil quality; the other is that the effective nutrients are excessively calcified and cannot be absorbed by the crops, resulting in waste of nutrients; the third is that the aggregate structure of the soil is destroyed, so this method should not be promoted (Wang Renshan, 2006)

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