If plants are being fed at the rate of 300 ppm nitrogen from a fertilizer with the analysis of 20-10-10, how much potassium (as K20) is being fed at the same time? - 1. 300 2. 200 3. 10 4. None of these

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1. If plants are being fed at the rate of 300 ppm nitrogen from a fertilizer with the analysis of 20-10-10, how much potassium (as K20) is being fed at the same time? - 1. 300 2. 200 3. 10 4. None of these