The invention relates to the technical field of soil improvement, in particular to a method for preventing and controlling acidification of
greenhouse vegetable planting soil, and aims to slow down the acidification process of
greenhouse soil and improve the
nutrient utilization efficiency. Before ploughing, an organic-inorganic composite
soil conditioner is applied to the soil, and the application amount is 150 kg / mu; after ridging,
nitrogen fertilizer,
organic fertilizer and
potash fertilizer are applied according to the
fertilizer requirement rule of crops, for example, in pepper planting, the
nitrogen fertilizer is 34 kg / mu, the
organic fertilizer is 160 kg / mu, and the
potash fertilizer is 32 kg / mu. In pepper planting,
nitrogen fertilizer is divided into base fertilizer and three-time topdressing, and
potassium fertilizer is divided into base fertilizer and two-time topdressing;
nitrogen fertilizer in
asparagus lettuce planting is divided into base fertilizer and two-time topdressing,
potassium fertilizer is divided into base fertilizer and two-time topdressing, and reasonable row spacing is matched. According to the method, the conditioner is combined with staged precise fertilization, the
soil acidification process is effectively controlled, the
crop yield and the soil
nutrient utilization efficiency are improved, and the method is suitable for
maintenance management of long-term planting soil in facility
agriculture.