When carbon dioxide reacts with anhydrate ammonia urea is produced. It is carried out under high pressure at a temperature of 180 degrees Celsius. Urea is obtained from this ferrule to form solid grains or pellets called perils. Dry urea is completely soluble in Verde and should be stored away from moisture until consumption.
When it is deposited on the surface of the soil with a ferrule it is chemically converted into bicarbonate. ammonium turns into gas، it is destroyed if it is not protected. That means for maximum efficiency of this fertilizer.
It must be mixed with soil. There are two ways to achieve this: must be spread over the surface of the soil and immediately plowed with good soil, or must be injected directly into the soil. In the second method, It can be spread over the surface of the soil, and then with a severe VAT can be directed to the underlying parts of the soil.
In general, can deliver the greatest amount of nitrogen to the soil and crops at the lowest cost. It is easily stored and does not cause burning in the long run. This product can be used alone or mixed with other fertilizers.
For plants that grow better on acidic soils-urea fertilizer is one of the best options to prevent acidification of the soil. In the cultivation of crops such as corn strawberries and other plants that require high nitrogen fertilizer is able to provide high amounts of nitrogen immediately.
After the chemical reactions that occur with the use in the soil-special care should be taken to prevent the evaporation ammonium. This becomes a problem for farmers growing on large farms. The high solubility of this material makes it necessary to store yen in a dry state.
First produced by the German chemist behind Frederick Weller in 1828. sources such as urine dark soil، manure and compost were the only sources used for this macronutrient. Over the past century other chemical compounds have been used as nitrogen fertilizers that are better than urea fertilizers.
Ammonium nitrate (N2H4O3) is one of these compounds is that the amount of NPK in it 0-0-34 is. On the other hand، carat NPK urea is 0-0-46, which makes yen transport economical. 90% of the amount produced artificially is used in fertilizer production.
One of the most common impurities of fertilizer. It decomposes in the soil, but this ferret takes a lot of time. On the other hand, during ferried decomposition، this substance is toxic to the plant. Like other sources of nitrogen can reach plants by itself: nitrogen may destroy seed germination or stop this ferret altogether. Excess nitrogen also “burns” products.
The first step for the absorption of nitrogen by the plant to convert it to ammonia or ion ammonium and Ion bicarbonate is. Naturally, bacteria oxidizing ammonia), the process with the help of the enzyme urease test accelerates does.
So during a ferried called nitrogen compound ammoniac is oxidized to produce nitrite. The nitrite oxidizing bacteria (NOB) oxidizes nitrite and nitrate you get. The two nitrogen compounds most absorbed by plants are ammonium and nitrate.
During nitrogenating، the number of nitrogen ions in the soil increases and thus the soil becomes acidic. Moreover when plants absorb hydrogen ions in the soil environment they produce. As a result, with the help of compounds such as effective calcium carbonate, the excess acidity of the soil should be removed and the soil brought to a neutral state.
As mentioned above-too much urea fertilizer or, in other words, too much nitrogen-has negative effects on the plant. It also has a negative impact on the environment: the nitrogen in the has high mobility leakage of this substance from agricultural areas to other can be dangerous. So, although fertilizers, consistent with the weather and economically, are affordable, but in use they have great accuracy the maximum returns from them gained the least harmful effect to the environment will have. Smart use of agricultural implements gives the best results.
It is a type of nitrogen fertilizer that is not expensive and the ratio NPK (nitrogen-phosphorus – potassium) is 0-0-46. Although is naturally produced in humans and animals synthetic type is also produced by monohydrated ammonium. Urea fertilizer can provide the farmer with the highest amount of nitrogen at the lowest price. In applying this fertilizer in the soil, care should be taken so that nitrogen is not destroyed by chemical reactions.
Fertilizers based on the ingredients (mainly nitrogen، phosphorus and potassium) are divided into several types, and the purpose of adding yenta to the soil can compensate for the lack of the element needed for plant growth.
Choosing a fertilizer chemical, appropriate, require an understanding of the characteristics and the properties of the soil is, the recognition, usually with a sampling of the soil and determine important parameters such as pH, nitrogen, etc., phosphorus, and due to the widespread use of urea fertilizer in between the farmers, in terms of properties and features of this fertilizer, etc., its effects and the amount of its consumption in fruit trees, corn, rice and other agricultural products to see.