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What is Fertilizer? A Comprehensive Guide

Fertilizer supplies essential nutrients for plant growth, improves soil properties, and enhances fertility. It is a crucial agricultural input. Types include ammonium phosphate fertilizers, water-soluble fertilizers, medium element fertilizers, biological fertilizers, organic fertilizers, and multi-dimensional field energy concentrated organic fertilizers.

Fertilizer provides nutrients for crop growth, enhances soil properties, and improves yield and quality. It is vital for agricultural production. Types include organic, inorganic, and biological fertilizers. It can be further categorized as farm manure or chemical fertilizer based on the source. Depending on nutrient content, it can be classified as complete or incomplete fertilizer. Based on supply characteristics, it can be direct or indirect fertilizer. Lastly, it includes nitrogen, potassium, trace element, and rare earth element fertilizers.


The Importance of Fertilizers

Higher plants require 17 essential nutrient elements, including carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, boron, manganese, copper, zinc, molybdenum, chlorine, and nickel. These nutrients are categorized as macronutrients, secondary nutrients, and micronutrients based on their concentration in crops. Macronutrients form a significant portion of crop dry matter, while secondary nutrients are needed in smaller quantities.

The lack of any element will affect the normal growth and development of crops. For example, nitrogen deficiency will lead to short and thin plants, and abnormal green leaves such as yellow-green and yellow-orange. When nitrogen deficiency is severe, crops will senescence and mature prematurely, and the yield will be significant. Only by increasing the application of nitrogen fertilizer can the harm be reduced.

Fertilizer definition and list of advantages

Compound (Composite) FertilizerFertilizers made by chemical methods and/or blending methods with declared amounts of at least two nutrientsIt can supply multiple available nutrients to crops at the same time, and exert the mutual promotion effect between nutrients
organic fertilizerAn assembly of natural organic fertilizers obtained locally and produced locally in rural areas. Including manure fertilizer, compost fertilizer, straw fertilizer, green manure, soil miscellaneous fertilizer, cake fertilizer, sea fertilizer, humic acid fertilizer, agricultural waste, biogas fertilizerVitamins, black humic acid, fulvic acid, brown humic acid, and low-molecular organic acids and butyric acid in organic fertilizers not only directly affect the nutritional function of plants, but also have physiological activity and stimulation, enhance respiration, and promote Root growth, which directly affects the shape of the soil environment
Organic-inorganic compound fertilizerCompound fertilizer containing a certain amount of organic fertilizerThe combined use of organic and inorganic fertilizers can cultivate soil fertility, increase fertilizer utilization efficiency, and improve crop quality
microbial fertilizerIt is a product that causes the crops to obtain a specific fertilizer effect through the life activities of microorganismsThe combined application of microbial fertilizers and chemical fertilizers can not only increase production, but also reduce the use of chemical fertilizers, improve soil and crop quality, and reduce pollution
Foliar fertilizerFertilizers that provide nutrients to crops through their leavesQuickly replenish nutrients and give full play to the fertilizer effect
slow release fertilizerFertilizers that delay the initial release of nutrients by various regulatory mechanisms, prolong the effective period for plants to absorb and utilize their effective nutrients, and make their nutrients release slowly or under control according to the set release rate and release periodThe solubility in water is small, and the nutrient elements are released slowly in the soil, reducing the loss of nutrient elements; the fertilizer effect is long-term and stable, and the energy can continuously supply the nutrient needs of plants throughout the production period

Type of Fertilizer

Ammonium Phosphate Fertilizer

Ammonium Phosphate Fertilizer
Phosphoric acid (including polyphosphoric acid) and ammonia are neutralized and processed to produce nitrogen and phosphorus compound fertilizers. This is the most productive and popular chemical fertilizer. It is suitable for almost all soils and crops. It has high concentration of active ingredients and is not easy to absorb moisture and agglomerate. The production process of ammonium phosphate fertilizer is a combination of phosphate fertilizer production process and ammonia processing process in nitrogen fertilizer production, which is economically reasonable.

Varieties Ammonium phosphate fertilizer varieties can be divided into three categories.

  1. Ammonium orthophosphate is the category with the largest output. The main varieties are diammonium phosphate, monoammonium phosphate and a mixture of the two.
  2. Ammonium polyphosphate is a mixture of ammonium orthophosphate and ammonium phosphate salts with different degrees of polymerization, most of which are used to make fluid compound fertilizers.
  3. Compound fertilizer made from ammonium phosphate and other nitrogen fertilizers.

Medium element fertilizer

Secondary constant element fertilizers contain calcium, magnesium, and sulfur compounds. They are chemical fertilizers that indicate nutrient content. High-concentration fertilizers have replaced low-concentration ones, reducing these elements in the soil. Medium-nutrient fertilizers address this issue. Calcium and magnesium-containing fertilizers like limestone and dolomite powder condition soil. Sulfur-containing fertilizers adjust soil alkalinity and salinity. Coating urea particles with sulfur enables slow-release nitrogen and sulfur. Silicon fertilizers improve soil, offer disease and pest resistance, and enhance phosphorus utilization.

Biological Fertilizer

What is biological fertilizer? The existing biological fertilizers are based on organic matter, and then mixed with bacterial agents and inorganic fertilizers. To broadly improve this general and conventional situation, biofertilizer products go far beyond existing concepts. It will be expanded to both provide crop nutrition and improve soil; at the same time, it should also disinfect soil, that is, use organisms (mainly microorganisms) to decompose and eliminate pesticides (insecticides and fungicides), herbicides and Pollutants from petrochemical and other products, and at the same time repair the soil.

Organic Fertilizer

what is organic fertilizer? Organic fertilizer (manure) is a type of fertilizer made from natural organic matter decomposed or fermented by microorganisms. Also known as farmyard manure in China. Its characteristics are: wide source of raw materials, large quantity; complete nutrient content, low content; slow and long fertilizer effect, it must be decomposed and transformed by microorganisms before it can be absorbed by plants; good effect of improving soil and cultivating fertilizer. Commonly used natural fertilizers include green manure, human excrement, manure, compost, retting, biogas fertilizer and waste fertilizer.


Multi-dimensional field can concentrate organic fertilizer

The multi-dimensional field energy concentrated organic fertilizer is composed of effective extracts of livestock and poultry manure, organic compounds of various elements, plant saponin organic active agents, magnetite powder and other ingredients scientifically mixed, dried, crushed and sieved, and then passed through a frequency of 10MHz high frequency made by electric field treatment. This kind of organic fertilizer introduces the principle of multi-dimensional field energy into fertilizer production for the first time, and increases the molecular field energy of fertilizer components. It first reflects the magnetization effect of high-frequency electric field and magnetite powder on multi-element complexes, thereby improving crop resistance. Absorption of macro and micro elements.

Fertilizer Storage

  1. Preventing moisture damage: Ammonium bicarbonate absorbs moisture, causing nitrogen loss. Ammonium nitrate easily clumps and becomes deliquescent due to high hygroscopicity. Lime nitrogen and superphosphate agglomerate after moisture absorption, affecting application. Store these fertilizers in cool, dry places, tightly seal packaging for ammonium bicarbonate to prevent air exposure.
  2. Fire prevention and sun exposure: Nitrogen fertilizers lose nitrogen faster when exposed to sunlight or high humidity. Ammonium nitrate decomposes oxygen at high temperatures and can ignite in contact with combustible materials. Avoid using iron to break up clumps to prevent explosions. Store nitrogen fertilizers away from sunlight, strictly prohibit fireworks, and avoid stacking with flammable items.
  3. Preventing volatile loss: Seal ammonia and ammonium bicarbonate during storage to prevent evaporation. Do not stack nitrogen fertilizers and calcium superphosphate with alkaline substances (lime, plant ash) to avoid nitrogen loss and reduce phosphate fertilizer efficiency.
  4. Preventing corrosion and toxicity: Calcium superphosphate is corrosive, so avoid skin and metal contact. Ammonia water strongly corrodes copper and iron; store it in ceramic, plastic, or wooden containers. Avoid stacking chemical fertilizers with seeds or using fertilizer bags for seeds to preserve germination.

The Difference Between Organic Fertilizers and Chemical Fertilizers

Organic fertilizers offer a wider range of nutrients compared to chemical fertilizers. However, the nutrient concentrations in organic fertilizers are relatively low. For example, chicken manure contains approximately 1.6% nitrogen, 1.5% phosphorus (P2O5), and 0.9% potassium (K2O). In contrast, urea in chemical fertilizer contains 46% nitrogen, while potassium chloride contains 60% potassium. This results in significantly higher nutrient concentrations in chemical fertilizers.

Organic fertilizers contain a large amount of organic matter, which chemical fertilizers do not have. After being applied to the soil, organic fertilizers need to be decomposed and rotted by microorganisms to release nutrients for crops to absorb, while chemical fertilizers can play a role after being applied to the soil.

Therefore, organic fertilizers contain many types of nutrients, low concentration, and slow release; on the contrary, chemical fertilizers have single nutrients, high concentration, and fast release. Both have their own advantages and disadvantages. Organic fertilizers should be used in conjunction with chemical fertilizers to maximize their strengths and avoid their weaknesses, and give full play to their benefits.

Fertilizer Identification Method

Identification of Nitrogen Fertilizers

Ammonium bicarbonate: The general problem of noodles is not big, and the quality is good; there are still granular ones on the market, which are almost untrue, because nitrogen fertilizer requires a content of 46 when it is to be granulated, that is, urea. A little bit of real is also pressed with face, its taste is easy to identify, and you can hold it in your hand and look at it, twist it, if it feels “oily” and has a smooth surface, it should generally be real, and if it is dry and rough Most of them are fake and inferior fertilizers.

Urea: There are few fake ones. Urea is a traditional fertilizer and is used by the most people. It has its own unique identification method. The most commonly used method is to grab it in the hand to see its dissolution rate.

Identification of Phosphate Fertilizers

Ordinary superphosphate (12%, 16%) rarely has sufficient content in the market. This is the fault of the manufacturer, and everyone in the industry knows it. Monoammonium, diammonium: If burned with fire, there will be a strong bubbling reaction.
The phosphorus fertilizer in the compound fertilizer can also be tested in this way, the higher the content, the stronger the reaction.

Potash identification

Potassium fertilizer is also a kind of salt, mainly divided into potassium chloride and potassium sulfate. The identification of potash fertilizers is generally placed on a hot iron plate, and a lot of salt will burn and jump up soon after being placed on the iron plate, and the degree of jumping is directly proportional to the content.


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