Which one of the following statements about fertilizers is not correct?

examrobotsa's picture

Submitted by examrobotsa on

Q: 39 (NDA-I/2022)

Which one of the following statements about fertilizers is not correct?

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,84,68,84,16,28,24

keywords: 

{'fertilizer': [2, 0, 0, 3], 'fertilizers': [0, 0, 0, 1], 'other fertilizers': [0, 0, 0, 1], 'phosphorus': [1, 0, 1, 0], 'soil': [7, 0, 4, 7], 'urea': [5, 1, 4, 10], 'more nitrogen': [0, 0, 0, 1], 'ammonia': [0, 1, 0, 2], 'fertility': [5, 0, 1, 4]}

The incorrect statement about fertilizers is option 1: "Urea is a phosphorus-containing fertilizer." Urea is actually a nitrogen-containing fertilizer and does not contain phosphorus.

Option 2 is a correct statement. The application of fertilizers to the soil increases the soil`s fertility by providing essential nutrients to plants, such as nitrogen, phosphorus, and potassium. These nutrients are necessary for plant growth and development.

Option 3 is also correct. Urea can be synthesized by combining ammonia and carbon dioxide under high pressure and temperature conditions. This reaction produces urea, which is a common and widely used nitrogen fertilizer.

Option 4 is a correct statement. Urea does contain more nitrogen compared to other types of fertilizers. It typically has a nitrogen content of around 46%, making it a concentrated source of nitrogen for plants.

To summarize, the incorrect statement is option 1, as urea does not contain phosphorus.