Potassium salts are soluble and so can be used directly on the soil.
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Fertilisers which are made in the lab are an example of which type of process?
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An acid and an alkali reacting is an example of which type of reaction?
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Why do plants need nitrate ions?
Drag the images into the correct place.
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Select the missing words in the text.
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Look at the slide below to work out the answer.