The Difference Between Chemical Fertilizer And Organic Fertilizer
(1) organic fertilizers contain a large amount of organic matter and have obvious effects of soil modification and fertilizer cultivation; Chemical fertilizers can only provide inorganic nutrients for crops, and long-term application will cause adverse effects on the soil, making the soil “more and more greedy”. (2) organic fertilizers contain a variety of nutrients, which are in a comprehensive balance; However, fertilizers contain only a single type of nutrients, and long-term application can easily cause nutrient imbalance between soil and food. (3) low nutrient content of organic fertilizers requires a large amount of application, while high nutrient content of chemical fertilizers requires a small amount of application. (4) long fertilizer efficiency of organic fertilizers; Chemical fertilizer has short and vigorous effect period, which is easy to cause nutrient loss and environmental pollution. (5) organic fertilizers come from nature, and there are no chemical compounds in the fertilizers. Long-term application can improve the quality of agricultural products; Chemical fertilizer is a pure chemical compound, improper application can reduce the quality of agricultural products. (6) in the process of production and processing, as long as the organic fertilizer is fully decomposed, it can improve the drought resistance, disease resistance and insect resistance of crops and reduce the use of pesticides after application; Long-term application of chemical fertilizers, due to reduced plant immunity, often requires a large number of chemical pesticides to maintain crop growth, easy to cause the increase of harmful substances in food. (7) organic fertilizers contain a large number of beneficial microorganisms, which can promote the process of biological transformation in soil and contribute to the continuous improvement of soil fertility; Long-term application of chemical fertilizers in large quantities can inhibit the activities of soil microorganisms, resulting in the decline of soil self-regulation ability.