Chemical fertilizer is produced by directly adding chemical elements of industrial products according to the chemical elements needed for crop growth. Now there are urea, compound fertilizer, water-soluble fertilizer and so on.
Difference:
(1) Organic fertilizer contains a lot of organic matter, which has obvious effects on improving soil and fertility. Chemical fertilizer can only provide inorganic nutrients for crops. Long-term application will have adverse effects on the soil and make the soil "more greedy".
(2) Organic fertilizer contains various nutrients, which are fully balanced; However, chemical fertilizer contains a single kind of nutrients, and long-term application is easy to cause imbalance between soil and food nutrients.
(3) Organic fertilizer has low nutrient content and needs to be applied in large quantities, while chemical fertilizer has high nutrient content and low application amount.
(4) Organic fertilizer has a long effective time; The effective period of chemical fertilizer is short and fierce, which is easy to cause nutrient loss and pollute the environment.
(5) Organic fertilizer comes from nature, and there are no chemical synthetic substances in the fertilizer, so long-term application can improve the quality of agricultural products; Chemical fertilizer is a pure chemical synthetic substance, and improper application will reduce the quality of agricultural products.
(6) In the process of production and processing, as long as the organic fertilizer is fully decomposed, the ability of drought resistance, disease resistance and insect resistance of crops can be improved after application, and the use amount of pesticides can be reduced; Long-term application of chemical fertilizer, because it reduces the immunity of plants, often requires a lot of chemical pesticides to maintain crop growth, which is easy to cause the increase of harmful substances in food.
(7) Organic fertilizer contains a large number of beneficial microorganisms, which can promote the biotransformation process in soil and is conducive to the continuous improvement of soil fertility; Long-term and large-scale application of chemical fertilizers will inhibit the activities of soil microorganisms and lead to the decline of soil self-regulation ability.
Advantages and disadvantages of organic fertilizer and chemical fertilizer Advantages and disadvantages of organic fertilizer and chemical fertilizer: Chemical fertilizer refers to fertilizer produced by chemical synthesis, including nitrogen, phosphorus, potassium and compound fertilizer. Fertilizer is also called "chemical fertilizer" or "inorganic fertilizer" Organic fertilizer is a fertilizer made of organic matter, while chemical fertilizer is a synthetic inorganic matter. The properties of chemical fertilizer and organic fertilizer are very different. Chemical fertilizer contains a single or a few kinds of nutrient elements, but it has high nutrient content, fast fertilizer efficiency (except a few), fierce but not long fertilizer efficiency, little effect on improving soil, and even has side effects of destroying soil properties; However, organic fertilizer contains a variety of nutrients or is comprehensive, with slow but long fertilizer efficiency, which can improve soil properties. Combined application of organic fertilizer and chemical fertilizer can complement each other and give full play to fertilizer efficiency. The large use of chemical fertilizers in agricultural production will lead to the decline of agricultural products quality, soil hardening, water pollution and other problems, all of which are caused by the long-term lack of organic matter in soil and excessive use of chemical fertilizers. The most fundamental way to solve these problems is to reduce the use of chemical fertilizers, increase the use of organic fertilizers and improve soil organic matter and soil fertility.
What's the difference between organic fertilizer and chemical fertilizer? Organic fertilizer is rich in organic matter, such as livestock manure and organic compound fertilizer.
Fertilizer contains no organic matter.
The difference is that after livestock manure is fully decomposed, it can change the soil aggregate structure, increase the ground temperature, and provide nutrients for crops for a long time.
Chemical fertilizer is a kind of quick-acting fertilizer with high nutrient content, which can be adjusted at any time according to the nutrition required by crops.
Differences among microbial fertilizer, organic fertilizer, compound fertilizer and chemical fertilizer. Microbial fertilizer is a kind of product that makes crops obtain specific fertilizer effect through microbial life activities, and it is a kind of fertilizer used in agricultural production. It has a history of nearly 50 years in China. From the evolution of rhizobia-bacterial fertilizer-microbial fertilizer and its name, the gradual development process of microbial fertilizer in China was explained.
Manure is a kind of fertilizer made from natural organic matter by microbial decomposition or fermentation. China is also called farmyard manure. Its characteristics are: wide sources of raw materials, large quantity; Comprehensive nutrition and low content; Fertilizer efficiency is long and late, and it can only be absorbed by plants after microbial decomposition and transformation; The effect of improving soil fertility is good. Commonly used natural fertilizers include green manure, human excrement and urine, manure, compost, compost, biogas manure and waste manure.
A chemical fertilizer containing any two or three of the crop nutrient elements nitrogen, phosphorus and potassium, which is made by chemical method or (and) mixing method.
Chemical fertilizer refers to the fertilizer made by chemical methods to manufacture or mine ore, also called inorganic fertilizer, including nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, micro-fertilizer and compound fertilizer. They have the following characteristics: simple ingredients and high nutritional content; Fast fertilizer efficiency and fierce fertility; Some fertilizers have acid-base reaction; Generally, it does not contain organic matter and has no effect on improving soil and fertility. There are many kinds of chemical fertilizers, and their properties and application methods are quite different.
The concept of organic fertilizer is relatively broad, and fertilizers containing carbon sources are collectively referred to, including cake fertilizer, compost, compost, manure, mud fertilizer, biogas fertilizer, green fertilizer, bacterial fertilizer and so on. Natural organic fertilizer, organic compound fertilizer, bio-organic fertilizer, etc. Classification according to production methods. Bio-organic fertilizer is a kind of organic fertilizer. In the process of commercial production, organic fertilizer is decomposed by microbial fermentation, or naturally fermented, or artificial strains are added to interfere with fermentation, so as to achieve the purpose of full decomposition and full sterilization. Bio-organic fertilizer is also different from biological bacterial fertilizer, which mainly uses organic nutrients and organic matter, and bacterial fertilizer mainly uses the contained strains.
What are the characteristics of organic fertilizer and chemical fertilizer? Organic fertilizer and chemical fertilizer have their own characteristics, which can be summarized as follows: first, organic fertilizer contains a lot of organic matter, which has obvious effects on improving soil and fertilizing soil fertility; Chemical fertilizer can only provide inorganic nutrients for crops. Long-term application will have adverse effects on the soil and make the soil "more greedy". Second, organic fertilizer contains a variety of nutrients, which are fully balanced; However, chemical fertilizer contains a single kind of nutrients, and long-term application is easy to cause imbalance between soil and food nutrients. Thirdly, organic fertilizer has low nutrient content and needs to be applied in large quantities, while chemical fertilizer has high nutrient content and low application amount. Fourth, the effect of organic fertilizer is long; The effective period of chemical fertilizer is short and fierce, which is easy to cause nutrient loss and pollute the environment. 5. Organic fertilizer comes from nature, and there are no chemical synthetic substances in the fertilizer. Long-term application can improve the quality of agricultural products; Chemical fertilizer is a pure chemical synthetic substance, and improper application will reduce the quality of agricultural products. Six, 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 fertilizer, because it reduces the immunity of plants, often requires a lot of chemical pesticides to maintain crop growth, which is easy to cause the increase of harmful substances in food. Seven, organic fertilizer contains a large number of beneficial microorganisms, which can promote the biotransformation process in soil and is conducive to the continuous improvement of soil fertility; Long-term and large-scale application of chemical fertilizers will inhibit the activities of soil microorganisms and lead to the decline of soil self-regulation ability.