Can nitrogen be used as fertilizer? If you can tell me something

Fertilizers are classified as those with nitrogen fertilizers

Nitrogen fertilizer is a kind of nitrogen-based fertilizer, reasonable application can improve the quality of agricultural products, increase the yield of crops, but unreasonable application will also hinder crop flowering and fruiting and reduce yield, so when applying nitrogen fertilizer, it is necessary to determine the specific application amount according to the target yield of crops and the nitrogen supply capacity of the soil, and adopt the method of deep application to promote better root development, if necessary, it can also be applied with other fertilizers reasonably.

1. What kind of fertilizer is nitrogen fertilizer?

1. What kind of fertilizer is nitrogen fertilizer?

Nitrogen fertilizer is a nitrogen-based fertilizer, apply an appropriate amount of nitrogen fertilizer to crops, not only can improve the yield of crops, but also improve the quality of agricultural products, when crops lack nitrogen, there will be thin branches, sparse roots, etc., if the amount of nitrogen is applied too much, it will hinder the flowering and fruiting of crops, thereby affecting the yield, so it is necessary to use nitrogen fertilizer reasonably.

2. How to use nitrogen fertilizer.

1) It is advisable to apply deeply.

Nitrogen fertilizer should be applied deeply, which can not only reduce the loss of fertilizer after direct volatilization, but also promote the development of the root system, make the root system deeply rooted and expand the nutrient area.

2) Reasonable combination of other fertilizers.

Generally, nitrogen fertilizer and organic fertilizer can be reasonably combined and then applied, which can not only promote high and stable crop yield, but also have the effect of fertilizing soil fertility.

The reasonable combination of nitrogen fertilizer and phosphate fertilizer can improve the application effect of nitrogen fertilizer and phosphorus fertilizer.

3) Decide on the dosage to be applied.

According to the target yield of crops and the nitrogen supply capacity of the soil, the specific application rate of nitrogen fertilizer is determined to avoid excessive or too little application, and then cause unnecessary losses.

2. Which nitrogen fertilizers.

1. Nitrogen fertilizers generally include urea, ammonium sulfate, ammonium chloride, ammonium bicarbonate and ammonium nitrate. Among them, urea is one of the common nitrogen fertilizers, which belongs to organic nitrogen fertilizers, and is often used as base fertilizer and top dressing, and sometimes also used as seed fertilizer.

2. Urea has a wide range of uses, in addition to being used as fertilizer, it can also be used to prevent pests and diseases, usually urea, laundry detergent, water according to the ratio of 4:1:400 after mixing evenly, can be used in fruit trees, vegetables and cotton, can control aphids, red spiders, cabbage insects and other pests, good insecticidal effect.

3. At the same time, urea can also be used to adjust the amount of flowers, generally in order to overcome the size of the apple field, in the small year, you can spray urea aqueous solution on the foliar surface 5-6 weeks after flowering, spray 2 times, can effectively improve the nitrogen content of the leaves, so that the new shoots can grow rapidly, and ensure that there is a suitable amount of flowers in the big year.

Nitrogen fertilizer refers to a unit fertilizer that uses nitrogen as the main component and is applied to the soil to provide plant nitrogen nutrients. Nitrogen fertilizer is the most demanded chemical fertilizer variety in agricultural production, which plays an important role in increasing crop yield and improving the quality of agricultural products.

Nitrogen fertilizer can be divided into ammonia nitrogen fertilizer, ammonium nitrogen fertilizer, nitrate nitrogen fertilizer, ammonium nitrate nitrogen fertilizer, cyanide nitrogen fertilizer and amide nitrogen fertilizer according to the nitrogen-containing group.

Nitrogen fertilizer has a promoting effect on the growth of plants, and nitrogen deficiency often leads to short plants, thin branches, fewer roots, and leaves that are yellow and dull.

Excessive nitrogen fertilizer will make it grow too luxuriantly, hinder its flowering and fruiting, and affect the yield of some crops.

Nature, natural fertilizer, most of the animal urine is the main nitrogen fertilizer, generally used, pig urine is the majority, because it is easy to collect!

If it is artificial, it is urea, and if it is phosphorus and potassium fertilizer, it is mainly the dry manure of animals!

The scientific and rational application of nitrogen fertilizer should be applied according to the placeAccording to the nature of the land, different farmlands choose different nitrogen fertilizers, and farmland with different soil qualities choose different amounts and times of use. For example, ammonium bicarbonate can be used in paddy fields, and the water loss in sandy soil is serious, so it needs to be used less each time and applied several times. Urea should be administered 3-10 days in advance.

Depending on the temperature of the season, the higher the temperature, the shorter the time, and it can be applied about 7 days in advance to be absorbed by plants after transformation. Therefore, it is not easy to water immediately after application.

In addition, there is basically no difference between urea, and it is not easy to cheat, mainly depending on the uniformity of urea particles, do not have a lot of flour, do not be soaked in water or wet bag phenomenon.

If it is not stored properly, it is easy to absorb moisture and agglomerate, affect the original quality of urea, and bring certain economic losses to farmers, which requires the majority of farmers to store urea correctly.

Before use, it is necessary to keep the urea packaging bag intact, handle it with care during transportation, prevent rain, and store it in a dry, well-ventilated place with a temperature below 20 degrees.

If it is a large amount of storage, the bottom should be padded with a wooden square of about 20 cm, and the upper part and the roof should leave a gap of more than 50 cm to facilitate ventilation and moisture, and leave an aisle between the stacks. to facilitate inspection and ventilation. If the urea that has been opened is not used up, the bag must be sealed in time to facilitate the use of the next year.

The scientific application of nitrogen fertilizer should pay attention to the following points:

1) Treat each nitrogen fertilizer differently according to its characteristics. Ammonium bicarbonate and ammonia are easy to volatilize and lose, so they should be used as base fertilizer for deep application; Nitrate nitrogen fertilizer has strong mobility and fast fertilizer efficiency in soil, and is a good top dressing for dry fields. Generally, ammonium nitrogen fertilizer or urea can be used for top dressing in paddy fields. Some fertilizers are toxic to seeds, such as urea, ammonium bicarbonate, ammonia, lime nitrogen, etc., and should not be used as seed fertilizer; Although ammonium sulfate can be used as seed fertilizer, the amount should not be too much, and it is best to have soil isolation between fertilizer and seeds.

In arid areas with less rainfall, the leaching problem of nitrate nitrogen fertilizer is not prominent, so it is more appropriate to apply nitrate nitrogen fertilizer, and in rainy areas or rainy seasons, it is better to apply ammonium nitrogen fertilizer and urea.

2) Nitrogen fertilizer should be applied deeply. Deep application of nitrogen fertilizer can reduce the loss of direct volatilization, water loss, nitrification and denitrification of fertilizer. Deep fertilization also facilitates root development, making the root system deeply rooted and expanding the nutrient area.

3) Reasonable application of other fertilizers. The combined application of nitrogen fertilizer and organic fertilizer plays an important role in obtaining high yield, stable yield and reducing cost of crops, which can not only meet the overall nutrient needs of crops, but also improve soil fertility. The combined application of nitrogen fertilizer and phosphorus fertilizer can improve the utilization effect of nitrogen and phosphorus, especially in the soil with low soil fertility, the combined application effect of nitrogen and phosphorus fertilizer is better.

In soils with insufficient available potassium content, the combination of nitrogen fertilizer and potassium fertilizer can also improve the effect of nitrogen fertilizer.

Urea, ammonium sulfate, ammonium bicarbonate, monoammonium phosphate, diammonium phosphate, ammonium chloride, lime nitrogen, liquid ammonia, ammonium nitrate.

That's all there is to it.

Common nitrogen fertilizers:

Ammonium bicarbonate (NH4HCO3), ammonium chloride (NH4Cl), ammonium nitrate (NH4NO3), ammonium carbonate (NH4) 2CO3, ammonium sulfate (NH4) 2SO4

Common nitrogen-containing compound fertilizers:

Ammonium phosphate [a mixture of ammonium monobasic phosphate NH4H2PO4 and diammonium phosphate (NH4)2HPO4], potassium nitrate (KNO3).

Types of nitrogen fertilizers.

Ammonium nitrogen fertilizer. Ammonium nitrogen fertilizers include ammonium bicarbonate, ammonium sulfate, ammonium chloride, ammonia, liquid ammonia, etc. Common characteristics of ammonium nitrogen fertilizer: 1. Ammonium nitrogen fertilizer is easily adsorbed by soil colloids, and part of it enters the clay mineral crystal layer.

2. Ammonium nitrogen is easily oxidized into nitrate. 3. Ammonia is volatile and lost in an alkaline environment. 4. High concentration of ammonium nitrogen is easy to poison crops.

5. The absorption of excessive ammonium nitrogen by crops has a certain inhibitory effect on the absorption of calcium, magnesium and potassium.

Nitrate nitrogen fertilizer. Nitrate nitrogen fertilizers include sodium nitrate, calcium nitrate, ammonium nitrate, etc. Common characteristics of nitrate nitrogen: 1. It is soluble in water and moves quickly in the soil.

2. NO3 - absorption is the main absorption, and crops are easy to absorb nitrate. 3. Nitrate fertilizer has no inhibitory effect on the absorption of nutrients such as calcium, magnesium and potassium by crops. 4. Nitrate is a negatively charged anion that cannot be adsorbed by soil colloids.

5. Nitrate is easily reduced to a gas state (NO, N2O, N2) through denitrification and escaped from the soil.

Amide nitrogen fertilizer.

Amide nitrogen fertilizer - urea, containing N46%, is the fertilizer with the highest nitrogen content among solid nitrogen.

This section of nitrogen fertilizer - urea.

Introduction to urea. Urea is a nitrogen fertilizer.

The first organic matter synthesized and widely found in nature, such as urea in fresh human feces. Synonyms: carbodiamine, carbaamide, urea.

Molecular formula: CO(NH2)2, because it contains this substance in human urine, it is named urea. The nitrogen content of urea (N) is 46%, which is the highest nitrogen content among solid nitrogen fertilizers.

Nitrogen can be used as a legume gas fertilizer.

Nitrogen is free nitrogen, which cannot be absorbed by plants, and generally cannot be used as a gas fertilizer for plants. Plants can only absorb chemical nitrogen.

Leguminous plants live in symbiosis with rhizobia, which use nitrogen as a nitrogen source, but the nitrogen synthesized by rhizobia is also used by plants (chemical state), and in addition, the nitrogen fixation of rhizobia (biological nitrogen fixation) of the leguminous family cannot be fully supplied.

No, plants can't absorb nitrogen, and only a few, like potatoes, can convert nitrogen into nitrogen fertilizers such as ammonia.

1. Ammonium nitrogen fertilizer.

Ammonium nitrogen fertilizers include ammonium bicarbonate (NH4HCO3), ammonium sulfate, ammonium chloride (NH4Cl), ammonia (liquid ammonia (NH3), etc.

2. Nitrate nitrogen fertilizer.

Nitrate nitrogen fertilizers include sodium nitrate (nano3), calcium nitrate, ammonium nitrate (NH4NO3), etc.

3. Ammonium nitrate nitrogen fertilizer.

Ammonium nitrate nitrogen fertilizers include ammonium nitrate, calcium ammonium nitrate, and ammonium thionitrate.

4. Amide nitrogen fertilizer.

Amide nitrogen fertilizer - urea, containing N46[3] 7%, which is the fertilizer with the highest nitrogen content among solid nitrogen.

5. Urea. Urea is a typical representative of amide nitrogen fertilizer, its properties are different from ammonium nitrogen fertilizer and nitrate nitrogen fertilizer, the biggest difference is that urea is a molecular nitrogen fertilizer, crops can not absorb a large amount, but after being applied to the soil, under the action of urease secreted by soil microorganisms, it is converted into ammonium carbonate, which belongs to ammonium nitrogen fertilizer, and crops can be absorbed and utilized in large quantities.

Nitrogen-containing fertilizers, mainly used in the synthesis of plant proteins.

Nitrogen fertilizer is a kind of fertilizer, nitrogen fertilizer is a chemical fertilizer containing crop nutrient element nitrogen, which plays a very important role in crop growth, and is also a deciding factor in plant photosynthesis Outer chlorophyll component, nitrogen can also help crop differentiation, and the application of gas nitrogen fertilizer can not only improve yield, but also improve agricultural products'Quality, nitrogen fertilizer is also a type of inorganic salt.

Fertilizers that contain nitrogen that can be absorbed by plants, such as ammonia and nitric acid, are common.

Nitrogen fertilizer refers to nitrogen (N) as the main component, with n marked amount, applied to the soil can provide plant nitrogen nutrients of the unit fertilizer, ammonium nitrogen fertilizer includes ammonium bicarbonate, ammonium sulfate, ammonium chloride, ammonia, liquid ammonia, etc., nitrate nitrogen fertilizer includes sodium nitrate, calcium nitrate, ammonium nitrate, etc., ammonium nitrate nitrogen fertilizer includes ammonium nitrate, calcium ammonium nitrate, ammonium sulfate nitrate, amide nitrogen fertilizer has urea, contains, is the highest nitrogen content in solid nitrogen fertilizer jujube coarse.

Nitrogen fertilizer is the most produced and used fertilizer variety in the world; Appropriate nitrogen fertilizer dosage plays an important role in increasing crop yield and improving the quality of agricultural products. Nitrogen fertilizers can be divided into ammonia nitrogen fertilizers, ammonium nitrogen fertilizers, Xinyan wide nitrate nitrogen fertilizers, ammonium nitrate nitrogen fertilizers, cyanide nitrogen fertilizers and amide nitrogen fertilizers according to the nitrogen-containing groups. The main raw material for the production of chemical nitrogen fertilizer is ammonia, and the Haber plant for the production of synthetic ammonia was built in 1909 and was first industrialized in Germany, becoming the basis of the nitrogen fertilizer industry.