In a preliminary fertilizer trial with Arracacia xanthorrizaBank., conducted in the State of São Paulo, only phosphorus increased appreciably the root yield. The increase due to potassium was small. Nitrogen depressed the yield.
In a preliminary fertilizer trial with Arracacia xanthorrizaBank., conducted in the State of São Paulo, only phosphorus increased appreciably the root yield. The increase due to potassium was small. Nitrogen depressed the yield.