What brand of fertilizer to join? Fertilizer joining considerations

What brand of fertilizer to join? Fertilizer joining considerations? Chemical fertilizers are essential nutrients for the growth and development of any natural or synthetic plant. About 30% to 50% of crop yields are attributed to commercial or inorganic chemical synthesis. There are many types and brands of fertilizers on the market, which can be divided into inorganic fertilizers and organic fertilizers. Fertilizers are usually used directly in the soil or sprayed on the leaves.

2 types and components of fertilizer

(1) Nitrogen fertilizer: a fertilizer containing nitrogen nutrients as the main component, including ammonium bicarbonate, urea, ammonium, ammonia, ammonium chloride, ammonium sulfate, and the like.

(2) Phosphate fertilizer: Fertilizer with phosphorus nutrient as the main component, including calcium phosphate, calcium magnesium phosphate fertilizer.

(3) Potassium fertilizer: Fertilizer with potassium nutrient as the main component is not widely used today. The main varieties are potassium chloride, potassium sulfate and potassium nitrate.

(4) Compound fertilizer: It is a binary compound and fertilizer with three elements of nitrogen fertilizer (nitrogen, phosphorus and potassium) and a ternary compound fertilizer containing three elements of nitrogen, phosphorus and potassium.

(5) Trace element fertilizer and some medium amount element fertilizer: the former is a fertilizer containing trace elements such as boron, zinc, iron, manganese and copper, and the latter is a fertilizer such as calcium, magnesium and sulfur.

(6) Fertilizers that are beneficial to certain crops: such as steel slag silicon fertilizer applied on rice, cobalt fertilizer applied on legume crops, agricultural rare earth applied on fruits, and the like.

3 the harm of fertilizer

Damage to crops

Fertilizers are composed of a variety of different types of salts. When the fertilizer enters the soil, the water in the cytoplasm is poured into the soil solution, which causes the crop to be damaged. A typical example is the crop “burning seedlings”; after a large amount of pesticides are applied, pesticide residues or deep groundwater are caused, and the water source is also polluted.

Environmental pollution

Eutrophication of rivers, lakes, and inland seas; soils are contaminated, soil physical properties deteriorate; toxic components in food, feed, and drinking water increase; and nitrogen oxides in the atmosphere increase.

What brand of fertilizer to join? Fertilizer joining considerations? How to buy fertilizer

1. Look at the trademark: in the upper right corner of the trademark, the official registration name is marked with “R”, and the “TM” is on behalf of the temporary registration. Only these two types are marked, indicating that the product is registered with the General Administration of Trademarks.
2. The three certificates must be complete: the detailed search on the packaging bag, prominent position, marked with product implementation standards, product registration certificate, production license. The three certificates are indispensable. If not indicated, this product is a "three no" product.
3. Fertilizer type: In the upper middle part of the fertilizer package, the regular fertilizer is labeled: “composite fertilizer”, “blended fertilizer” or “complex fertilizer”. This is the three major classifications of fertilizers in China. In addition, other types are not allowed to be marked, and in order to alert consumers, the maximum size is allowed to prompt consumers.
4. See the contact information of the factory : In order to facilitate the connection between the manufacturer and the consumer, the national standard stipulates that the manufacturer and contact information must be placed on the packaging bag, and the guarantee is true, and the QR code has been added.

5 chemical science use

1. The ammonium bicarbonate should be applied in depth: since ammonium bicarbonate is very unstable, it is most easily decomposed into ammonia gas and volatilized, and the higher the temperature, the greater the volatilization loss, so the ditch application or the hole application should be carried out.

2. It is not advisable to water immediately after urea application: after urea is applied to the soil, it will be converted to ammonium amide soon, which is easy to lose with water. Therefore, it should not be watered immediately after application, and should not be applied before heavy rain.

3, ammonium sulfate avoid long-term use: ammonium sulfate is a physiological acid fertilizer, if applied in the field for a long time, it will increase soil acidity, destroy the soil aggregate structure, is not conducive to fertility.

4. Nitrate nitrogen fertilizer should not be applied in rice fields and vegetable fields: when nitrate fertilizer is applied to vegetable fields, the nitrate content of vegetables will be multiplied and reduced to nitrite in human body, which is extremely harmful to human body. .

5, containing chlorinated fertilizer should not be applied to saline-alkali land and avoid chlorine crops: ammonium chloride, potassium chloride and other chlorinated fertilizers applied to the soil after decomposition, resulting in soil acidification, the use of salt and alkali, will increase salt damage.

6. Phosphate fertilizer should not be dispersed. When applying phosphate fertilizer, it should be applied as base fertilizer and concentrated in the seeding ditch or nest. It is best to mix it with organic slag for a period of time.

7. Potassium fertilizer should not be applied in the late stage of crop growth: due to the potassium element in the lower stems and leaves of the crop, it can be transferred to the top part for reuse. Therefore, potassium fertilizer should be applied in advance in the crop seedling stage.

6 fertilizer storage method

Moisture proof

Ammonium bicarbonate is easy to absorb moisture; ammonium nitrate is easy to agglomerate and deliquesce; lime nitrogen and superphosphate are easy to agglomerate after moisture absorption. Therefore, these fertilizers should be stored in a dry, cool place, especially when storing ammonium bicarbonate, the package should be sealed firmly to avoid contact with air.

Anti-volatile

Ammonia water and ammonium bicarbonate are extremely volatile and should be sealed when stored. Nitrogen fertilizers and superphosphates are strictly prohibited from being mixed with alkaline substances (lime, grass ash, etc.) to prevent loss of nitrogen fertilizer and reduce the fertilizer efficiency of phosphate fertilizer.

Anti-heat

The higher the temperature, the more the deliquescent volatilization and agglomeration of the fertilizer (the worse the stability), so the temperature of the storage house should be kept below 30 °C, and it is best not to put it in the kitchen with heat source in the countryside.

Fire prevention

Ammonium nitrate, potassium nitrate, etc. are flammable. They should not be stacked together with flammable materials such as kerosene, gasoline, straw, wood chips, etc. during storage to avoid fire.

Explosion prevention

Ammonium nitrate, potassium nitrate, etc. are easily exploded. If they are mixed with metal powders such as copper and iron, they may cause an explosion if they are rubbed. Therefore, after these chemical fertilizers are hardened, it is strictly forbidden to use metal objects to slam and crush them with heavy objects.

Corrosion protection

Calcium superphosphate is corrosive and should be protected from contact with skin and metal utensils. Ammonia water is highly corrosive to copper and iron and should be stored in ceramics, plastics and wooden containers. In addition, fertilizers cannot be stacked with seeds to avoid affecting seed germination.

Anti-mixing

Fertilizers are acidic and alkaline, and should be classified and stored separately according to the place of origin, type and nature, so as not to reduce the fertilizer efficiency.

Anti-misuse

Fertilizers should not be mixed with pesticides, human and animal drugs, or food items (such as sugar, salt) to avoid misuse. In particular, prevent children from eating.

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