pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.

12-13

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6-7

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4-5

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9-10

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Solution

The correct option is C 6-7
Soil pH is considered a master variable in soils as it affects many chemical processes. It specifically affects plant nutrient availability by controlling the chemical forms of the different nutrients and influencing the chemical reactions they undergo.
The optimum pH range for most plants is between 5.5 and 7.5 however, many plants have adapted to thrive at pH values outside this range.

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Similar questions

Study the two statements labelled as (A) and (B) and choose the correct option.

A: Biofertilisers can be used to improve the yield of a plant.

B: Substances applied to soil or directly onto plants to provide nutrients for their growth and development are called fertilisers.

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