QQuestion
Excessive use of fertilizers in agricultural fields reduces the yield of crops. Justify the statement.
ICSEClass XBiologyPollution02 Mark2023 Easy
✓Answer
Excessive use of fertilizers increases the concentration of mineral salts in the soil, making the soil solution hypertonic in relation to the root cells. Water then moves out of the root cells by exosmosis, causing plasmolysis and reducing water absorption. This adversely affects plant growth and reduces crop yield.
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