Table of Contents
At present, the commonly used fertilizers in the market can be divided into organic fertilizers and inorganic fertilizers. When purchasing fertilizers, we often hear the remarks that organic fertilizers are better than inorganic fertilizers. So is organic fertilizers really better than inorganic fertilizers? This article will introduce the advantages and disadvantages of organic fertilizers and inorganic fertilizers and why are inorganic fertilizers bad?
Advantages of organic fertilizers:
In organic fertilizers, vitamins, black humic acid, fulvic acid, palm humic acid, and low-molecular-weight organic acids, butyric acid, etc., not only directly affect the nutritional function of plants, but also have physiological activities and stimulating effects, enhance respiration, promote Root growth directly affects the shape of the soil environment.
(1), increasing the organic matter of the soil;
(2) Organic fertilizers contain a large amount of nutrients needed by plants, and the nutrient supply to plants is relatively smooth and lasting, and has a long after-effect;
(3) Organic fertilizers also contain a variety of trace elements. Because the various nutrients in organic fertilizers are relatively complete, and these substances are completely non-toxic, harmless and pollution-free natural substances;
(4) Organic fertilizers contain a variety of sugars, and the application of organic fertilizers increases various sugars in the soil. With sugars, there is a lot of energy released in the degradation of organic matter, and the growth, development and reproduction of soil microorganisms have energy;
(5) The application of organic fertilizer greatly improves the enzyme activity of the soil, which is beneficial to improve the absorption performance, buffer performance and stress resistance performance of the soil;
(6) The application of organic fertilizer increases the organic colloid in the soil, cements the soil particles into a stable aggregate structure, improves the physical, chemical and biological properties of the soil, and improves the soil water retention, fertilizer retention and air permeability;
(7) The organic fertilizer is decomposed in the soil and transformed into various humic acid substances. Humic acid is a kind of macromolecular substance, with high cation substitution capacity, good complexation and adsorption performance, and great resistance to heavy metal ions. Good complexation and adsorption can effectively reduce the toxicity of heavy metal ions to crops and prevent them from entering the plants.
Disadvantages of organic fertilizers:
The use of organic fertilizers also has low nutrient content, which is not easy to decompose, and cannot meet the requirements of high crop yield in time. The accumulation and use of traditional organic fertilizers are also very inconvenient. Human, livestock and poultry manure, garbage and other organic wastes are dirty, rotten, and smelly substances, which contain many pathogenic microorganisms, or are mixed with some poisons, which are important sources of pollution.
(1) Organic fertilizers also have low nutrient content, are not easy to decompose, and cannot meet the requirements of high crop yield in time;
(2) The accumulation and use of traditional organic fertilizers, human, livestock and poultry manure, garbage and other organic wastes are a type of dirty, rotten, and odorous substances. Improper use will form an important source of pollution, especially feed additives contain heavy metals, heavy metals Discharged with animal feces will seriously pollute the environment and affect human health.
Advantages of inorganic fertilizers:
Inorganic fertilizers are mineral fertilizers, also called chemical fertilizers, or chemical fertilizers for short.
(1) The composition is relatively simple and the nutrient content is high;
(2) Most of them are easily soluble in water and have a fast fertilizer effect, so they are also called “quick-acting fertilizers”;
(3), convenient application and transportation.
Disadvantages of inorganic fertilizers:
Inorganic fertilizers are chemical fertilizers, which are high-purity inorganic salts buried in the soil. These salts are dissolved into the soil and then absorbed by plants. Due to the high concentration of inorganic salts, it is easy to cause damage to the soil acid-base balance and harm the environment.
(1) Inorganic fertilizers do not contain organic matter. In chemical synthesis mechanical processing, a large amount of energy is consumed and the environment is polluted, and the long-term application of inorganic fertilizers is not conducive to the improvement of soil fertility;
(2) The ingredients are single and the nutrition is not comprehensive. It needs to be used in combination with several chemical fertilizers or mixed with organic fertilizers;
(3) The fertilizer effect is fast, but the fertilizer effect is not long-lasting. An excessive application will cause waste and pollute the water quality, and it is easy to cause flooding;
(4) Since the fertility of inorganic fertilizers is not long-lasting, only a small amount of times and the method of fertilizing by water can be adopted.
The difference between organic fertilizer and inorganic fertilizer:
1. Different ingredients
Carbon-containing compounds, in addition to carbon dioxide, carbonic acid, carbonates and other simple compounds, mainly containing C, H, O compounds, are called organic compounds. Compounds that do not contain carbon, including the simple compounds mentioned above, are called inorganics.
2. Different sources
Organic fertilizers use biological excrement or remains as fertilizers. After the organic matter in organic fertilizers is decomposed by microorganisms, the remaining inorganic salts enter the soil and are absorbed by plants. Because organic fertilizers have good compatibility with the environment, they will not. cause pollution to the environment.
Inorganic fertilizers are chemical fertilizers. High-purity inorganic salts are buried in the soil. These salts are dissolved into the soil and absorbed by plants. Due to the high concentration of inorganic salts, it is easy to cause damage to the soil acid-base balance and harm the environment.