Abstract
Lime has not been found of importance for potatoes except on cutaway hochmoor. Nutrient requirements per acre are about 70 lbs nitrogen. 40 lbs phosphorus and 170 lbs potassium. Farmyard manure was found to be a poor source of nitrogen but a good source of phosphorus and potassiu. Different nitrogenous fertilizers in general gave similar results, but calcium cyanamide gave inferior results.
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