A preliminary diagnosis and recommendation integrated system (DRIS) model for diagnosing the nutrient status of sweet potato (Ipomoea batatas)

Autor: Ramakrishna, A., Bailey, J. S., Kirchhof, G.
Zdroj: Plant and Soil, 2009 Mar 01. 316(1/2), 107-116.
Databáze: JSTOR Journals