Excessive use of organic fertilizer can have a variety of adverse consequences, primarily manifesting in the following areas:
1. Deterioration of soil physical and chemical properties: Excessive application of organic fertilizer can lead to salt accumulation in the soil, affecting its physical and chemical properties.
2. Soil nutrient imbalance: Although organic fertilizer produced by an organic fertilizer produciton line is comprehensive, excessive application can lead to excessive concentrations of certain elements in the soil, inhibiting the absorption of other elements and causing nutrient imbalance.
3. Alterations in soil microbial communities: Excessive application of organic fertilizer can alter the size, composition, and activity of soil microbial communities, thereby affecting nutrient cycling and soil fertility.
4. Seedling burn and growth stunting: Excessive application of organic fertilizer can lead to the accumulation of nutrients such as phosphorus and potassium in the soil, causing a nutrient imbalance that can lead to seedling burn and affect normal crop growth.
5. Nitrate accumulation: Excessive application of organic fertilizer can lead to the accumulation of nitrate ions in the soil, resulting in excessive nitrate levels in crops. This not only affects the quality of agricultural products but can also pose a threat to human health. 6. Increased pest and disease infestation: Excessive application of organic fertilizers can significantly increase the number of plant pathogens in the soil, leading to an increase in plant pests and disease.
7. Water pollution: Excessive application of organic fertilizers can lead to the accumulation of nitrogen, phosphorus, and other elements in the soil. This accumulation increases with the number of years of fertilization, increasing leaching into water bodies, causing eutrophication, affecting water quality, and even threatening the survival of aquatic life.
8. Increased greenhouse gas emissions: Excessive application of organic fertilizers can increase nitrous oxide emissions, adversely affecting the environment.
Aquaculture farms should ensure that organic fertilizers produced using organic fertilizer equipment are used in moderation.
