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प्रश्न
What are fertilizers ? Classify fertilizers.
उत्तर
Fertilisers are organic or inorganic materials that are mixed in the soil to provide plant nutrients essential to the growth of plants. Fertilisers supply nitrogen, phosphorous, and potassium (NPK).
Fertilisers are classified into four groups:
1. Nitrogenous fertilisers: They contain nitrogen as the major nutrient.
2. Phosphatic fertilisers: They contain phosphate or phosphorus as the major nutrient.
3. Potassic fertilisers: They contain potassium as the major nutrient.
4. Complex fertilisers: They contain a combination of multiple nutrients.
APPEARS IN
संबंधित प्रश्न
Distinguish between micronutrients and macronutrients. Give suitable examples.
Write down two advantages of fertilizer over manure
Explain various methods of fertilizer application
Mention three effects of excessive irrigation.
Why water should be used judiciously ?
Explain the advantages and disadvantages of mixed cropping.
Mention three different ways in which insect pests can attack the crop plant.
Define irrigation. Why is irrigation of crops essential? Mention the harmful effects of excessive irrigation.
Why is organic matter important for crop production?
Differentiate between the following
Mixed cropping and Intercropping
