Can organic fertilizer replace chemical fertilizer? How much chemical fertilizer can a ton of organic fertilizer replace?

Long-term use of organic fertilizer has increased soil fertility, and more and more minerals are necessary for plants, and they are relatively complete. Besides nitrogen, phosphorus and potassium, they also contain calcium, magnesium, sulfur, zinc, boron, manganese, molybdenum, copper and iron. However, all the minerals necessary for plants can be found and brought in the organic fertilizer in the farmyard. High-quality organic fertilizer is a complete fertilizer, which has more advantages than general fertilizer. Therefore, organic fertilizer can replace chemical fertilizer. The characteristics of chemical fertilizer are relatively pure nutrient elements, that is, high purity, high composition of nutrient elements, easy to melt after being applied to soil layer, and the nutrient elements in it are easy to be digested, absorbed and utilized by crops, so that fertility can be fully exerted quickly and effectively. Targeted use of chemical fertilizers.

It can better meet the demand of crops for nutrients and achieve the overall goal of total crop output. This feature and advantage are not possessed by organic fertilizer. When it comes to how much nutrient fertilizer a ton of organic fertilizer can get, in the final analysis, it is really incomparable. Because the raw materials used in the production of organic fertilizer are different, the nutritional components of its nutrients are also different. It is only the key nutrient elements such as light fertilizer in key farmyard manure. Although organic fertilizer contains light fertilizer and water-soluble fertilizer, it also contains many medium and trace element fertilizers. However, water-soluble fertilizer has low nutrient composition and slow fertility, which can not meet the demand of crops for nutrients immediately.

The key function of organic fertilizer is to improve soil, increase soil organic matter, improve soil permeability and enhance the charm of intestinal probiotics in soil. Therefore, only when it is used in combination with chemical fertilizer can it meet the requirements of crops for nutrients. Through scientific and reasonable measurement, organic fertilizer basically contains all the elements of crop production, manufacturing, growth and development. In addition to water-soluble fertilizers such as N, P and K, nutrients such as zinc, boron, molybdenum, calcium, iron, chlorine and copper are very important for plant growth and development. Therefore, the quality and taste of crops applying organic fertilizer are better.

Organic fertilizer is a traditional chemical fertilizer, and farmyard manure is a primitive organic fertilizer, which has been widely used in agriculture since ancient times and has great promotion and positive significance for crop planting at that time. Organic fertilizer is a finished organic fertilizer produced by thoroughly fertilizing and inhibiting livestock manure and animal and plant residues. For this kind of organic fertilizer, the light fertilizer composition is a disadvantage that can not be ignored. Generally, the total proportion of light fertilizer is about 5%, and the composition is still quite low. But it is rich in organic matter and trace elements, which is irreplaceable by chemical pesticides. This is why China has vigorously promoted the application of organic fertilizer to improve soil fertility in the past two years.