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A soil sample has pH 9. Which is a more suitable way to improve its condition for crops?

Answer and explanation

Correct answer: Carefully adding organic matter

A pH of 9 indicates that the soil is alkaline. Adding slaked lime or sodium hydroxide would increase alkalinity, and soap solution would also be unsuitable. Properly decomposed organic matter can gradually improve soil structure and, through biological decomposition, help moderate excessive alkalinity when used with soil testing and agricultural advice. Therefore option A is the most suitable choice among those given.

Related tags

Soil PhAlkaline SoilOrganic MatterAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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