A critical assessment of the value of petiole sap analysis in optimizing the nitrogen nutrition of the potato crop

Autor:	MacKerron, D.K.L., Young, M.W., Davies, H.V.
Zdroj:	Plant and Soil, 1995 May 01. 172(2), 247-260.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/42947485 Zobrazit plný text záznamu Full text from SpringerLink