Experimental tests of the logic-mathematical model on environmental productivity of Triticum durum c.v. Valnova. Photosynthetic potential and hydric and mineral nutrition at two different environments. 1: Research carried out in 1983

agronomic characters caratteristiche agronomiche clima climat climate concimi azotofosforici engrais np esperimenti evapotranspiration evapotraspirazione experimentation experimentos experiments fertilizantes np fotosintesi modele modelli modelos models nitrogen phosphorus fertilizers nutrition des plantes nutrizione delle piante photosynthese photosynthesis plant nutrition triticum durum yield forecasting