Open-access Effect of increasing doses of nitrogen, phosphorus and potassium on the yield of Arracacia Xanthorriza

Abstract

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.


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Instituto Agronômico de Campinas Avenida Barão de Itapura, 1481, 13020-902, Tel.: +55 19 2137-0653, Fax: +55 19 2137-0666 - Campinas - SP - Brazil
E-mail: bragantia@iac.sp.gov.br
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