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| potassium fertiliser A chemical fertilizer containing potassium. Potassium (K) is required by all plant and animal life. Plants require potassium for photosynthesis, osmotic regulation and the activation of enzyme systems; potassium fertiliser | |||
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| potassium fertiliser A chemical fertilizer containing potassium. Potassium (K) is required by all plant and animal life. Plants require potassium for photosynthesis, osmotic regulation and the activation of enzyme systems; potassium fertiliser | |||
