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प्रश्न
Which of the following is not true for fertilisers?
पर्याय
They increase the yield
Their excessive use disturbs the balance of nutrients in soil
They are generally used in small quantity
They are environment friendly
उत्तर
They are environment friendly
Explanation -
Fertilisers are not environment friendly as they are chemical substances rich in particular nutrient, Though, they increase the crop yield, the repeated and excessive use of fertilisers in the same field reduces the soil fertility, It also pollutes water bodies as they get dissolved and washed away by rain and also seeps in the water table posing threats to humans.
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संबंधित प्रश्न
Damaged seeds would _________ on top of water.
What is the advantage of storing grain in wattle and daub baskets?
______ is called as farmer’s best friend.
______ fertilizer is ecofriendly.
Give an example for inorganic fertilizer.
______ is the organic tertillzer.
Fertilizers containing only plant or animal-based materials or those synthesized by microorganisms are called inorganic fertilizers.
Analogy:
Organic fertilizer: Compost:: Inorganic fertilizer: ______.
Define Principal nutrients.
Differentiate between organic and inorganic fertilizer.
Tabulate the nutrients present in inorganic fertilizers.
Define Biofertilizer
The process of loosening and turning of soil is called
If you are given a dry piece of land for cultivation, what will you do before sowing the seeds?
State whether the following statement are True/False. Correct the false statement.
Using good quality seed is the only criterion to get high yield.
