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Improvement in Food Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceImprovement in Food Resources1 Mark
Question
What are fertilizers? Classify fertilizers.
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Answer

Fertilizers: Fertilizers are one of the major components for obtaining higher yields especially in expensive. farming practices. Fertilizers are divided into following four groups:
  1. Nitrogenous fertilizers: These fertilizers supply the macronutrient nitrogen.
Example: Urea, $CO(NH_2)_2.$​​​​​​​
  1. Potassic fertilizers: These fertilizers supply potassium which is one of the essential macronutrient of the plants.
Example: Potassium sulphate, $K_2SO_4.​​​​​​​$​​​​​​​
  1. Complex fertilizers: These fertilizers contains two or more nutrients.
Example: Nitrophosphate.

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