Judicious use of Fertilizers


 
 
Concept Explanation
 

Biofertilizers are the substances that contain living microbes and, when applied to soil either by soil application or seed priming, colonize the rhizosphere. These applied microbes interact with plants and improve growth and yield with their different growth-promoting mechanisms.

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Sample Questions
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Question : 1

What are the features of fertilizers ?

Right Option : D
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Explanation
Question : 2

Which of the following are correct :

(a) Fertilizers are man- made inorganic salts or organic compounds. 

(b) Fertilizers is not very soluble in water.

(c) Fertilizers are readily absorbed by plants because they are soluble in water.

Right Option : C
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Explanation
Question : 3

Which of the following are correct :

(a) Fertilizers are man- made inorganic salts or organic compounds. 

(b) Fertilizers are easy to store, transport and use because they are compact and concentrated.

(c) Fertilizers are readily absorbed by plants because they are soluble in water.

Right Option : D
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Explanation
 
 
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