Red soil conditioner for promoting peanut growth and preparation method thereof

The invention provides a red soil conditioner for promoting peanut growth and a preparation method thereof, and the red soil conditioner comprises the following components by weight: 30-35% of cassava straw, 25-30% of peanut shell biomass charcoal, 10-15% of cassava alcohol residue, 5-8% of oil cake, 15-20% of lime, and 5-10% of caustic calcined magnesia powder. The organic and inorganic combined conditioner is prepared by combining organic materials such as straw, biomass charcoal, oil cakes and cassava alcohol residues with alkaline chemical raw materials containing calcium and magnesium nutrients such as lime and caustic-burned magnesia powder, and when the conditioner is applied to a red soil area, the physical and chemical properties of soil can be improved, and the soil quality is improved. The soil pH value is increased, the soil bulk density is reduced, the content of soil organic matter and effective nitrogen, phosphorus, potassium, calcium, magnesium and other nutrients is increased, and peanut nutr