Organic fertilizers and chemical fertilizers have their own characteristics, which can be summarized as follows:
1. Organic fertilizers contain a large amount of organic matter and have obvious soil improvement and fertilization effects; chemical fertilizers can only provide inorganic nutrients for crops, and long-term application will have adverse effects on the soil, making the soil “more and more greedy”.
2. Organic fertilizers contain a variety of nutrients, and the nutrients they contain are fully balanced; while chemical fertilizers contain a single type of nutrients, and long-term application is likely to cause nutrient imbalance in soil and food.
3. Organic fertilizers have low nutrient content and need to be applied in large quantities, while chemical fertilizers have high nutrient content and are applied in small quantities.
4. Organic fertilizers have a long fertilizer effect; chemical fertilizers have a fast fertilizer effect but a short effect period, which is easy to cause nutrient loss and pollute the environment.
5. Organic fertilizers come from nature, and there are no chemical synthetic substances in the fertilizers. Long-term application can improve the quality of agricultural products; chemical fertilizers are pure chemical synthetic substances, and improper application will reduce the quality of agricultural products.
6. During the production and processing of organic fertilizers, as long as they are fully decomposed, they can improve the drought resistance, disease resistance and insect resistance of crops and reduce the use of pesticides. Long-term application of chemical fertilizers often requires a large amount of chemical pesticides to maintain crop growth due to reduced plant immunity, which can easily increase harmful substances in food.
7. Organic fertilizers contain a large number of beneficial microorganisms, which can promote the biological transformation process in the soil and help to continuously improve soil fertility. However, long-term and large-scale application of chemical fertilizers will inhibit the activity of soil microorganisms and reduce the automatic adjustment ability of the soil.
