Application of fertilizers
Application of fertilizers
Fertilizers are inorganic chemicals manufactured in industries. They contain essential plant nutrients like nitrogen, phosphorus, and potassium [NPK]. They are prepared in a concentrated form, so it is easy to transport them. Fertilizers are available in the form of granules, water-soluble powders or solutions. Types of fertilizers: three main types of chemical fertilizers are:
1. Nitrogenous fertilizers: contain nitrogen, e.g., urea, ammonium nitrate.
2. Phosphatic fertilizers: contains phosphorus e.g. superphosphate, ammonium phosphate, etc.
3. Potassium fertilizers: contains potassium e.g. potassium nitrate.
These fertilizers are used for enhancing the vegetative and reproductive growth of the plants. For example, leguminous crops such as pulses, groundnut, redgram, etc., do not need nitrogenous fertilizers. This is because the roots of such crops have nitrogen-fixing bacteria (Rhizobium), which can convert nitrogen of air into nitrogen compounds. Application of fertilizers: Different fertilizers are used at different times and in different ways. The application of fertilizers may be done before sowing, during irrigation and by spraying them.
The use of fertilizers in farming is an example of ________________ | |||
| Right Option : B | |||
| View Explanation | |||
Why there is need of fertilizers in the plants? | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following chemical fertilizers are used in plants ? | |||
| Right Option : D | |||
| View Explanation | |||
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