Question

What are the disadvantages of Urea?

Answer 1

Hint: With the largest nitrogen content, Urea is the most important nitrogenous fertiliser in the market (about 46 percent). It's a crystalline organic chemical molecule that's white in colour. Urea fertiliser is mostly utilised for bloom growth because it can only offer nitrogen and neither phosphorus or potassium.

Complete answer:
Urea is a crystal that is white in colour. It is a nitrogen fertiliser as well as a simple organic molecule. Urea is simple to store, utilise, and doesn't harm the environment.
At the same time, urea is one of the most extensively used chemical nitrogen fertilisers, as well as the primary raw ingredient in the NPK fertiliser manufacturing process.
Urea should not be spread on the ground because of its disadvantages. Disadvantages of Urea are:
1. Only after 4-5 days of transformation at room temperature may urea be used. In the ammoniation process, the majority of the nitrogen is easily volatilized. In most cases, the real utilisation rate is only around 30%. If urea is sprayed onto soil which is alkaline and has a high concentration of organic matter.
2. Fertilizer damage is easily caused by too much urea. Because urea has a high nitrogen content, it should not be used in excess to avoid waste and fertiliser damage. Many farmers in fruit-producing areas use a lot of urea, which kills trees and has catastrophic implications.
3. Urea must be used ahead of time because it takes a long time to take effect. We must be aware of how urea decomposes in the soil when it is applied as a top dressing. Urea must be converted into ammonia nitrogen about 7 days after application to offer a fertiliser effect. Urea fertilizers for home plants "provides excellent effect on overall plant growth, encourages the growth of shoots/leaves and improves the shelf life of the produce. Weight: 400 gms water-soluble helps the plant set buds and flowers".
In terms of the environment, the production of urea involves the discharge of numerous toxic chemicals into the atmosphere. Furthermore, urea (particularly urea nitrate) is a volatile material that might explode if kept improperly or without monitoring.

Note:
The skin, eyes, and respiratory tract can all be irritated by Urea. Dermatitis can be caused by repeated or extended contact with urea in fertiliser form on the skin. Blood concentrations that are too high can be harmful. Urine is a safe and effective fertiliser for cabbage, beets, cucumbers, tomatoes, and pretty much anything else you wish to produce, according to recent scientific studies. Pee's nutrients are also readily available to plants, which is an added benefit.