Question

Adding too much of fertilisers, pesticides can damage the soil, how ?
CHAPTER-10 SOIL ; CLASS 7, DAV ; SUBJECT- CHEMISTRY
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Answer 1

Answer:

chemical fertilizers can make the topsoil acidic, because nitrogen lowers the pH of the soil. The ideal pH for maximum plant growth and crop yield is between 5.5 and 8. If the soil is too acidic (pH lower than 5.5), it will yield less crops.

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Answer 2

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One of the problems with chemical fertilizers is they seep through the soil into the groundwater and other water sources, leading to contamination. ... When it is in the water, it encourages the growth of plankton and other aquatic plants to excessive amounts.

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