Efeito de doses crescentes de nitrogênio, fósforo e potássio sôbre a produção de fôlhas e fibras de fórmio

In a fertilizer experiment conducted during four years on a low-land soil of the State of Sao Paulo, phosphorus increased considerably the yields of leaves and fibres of Phormium tenax. The increases due to nitrogen were relatively small and the addition of potassium did not influence the yields.