spectacle (1) saison (1) riz (1) modèle (1) plomb (1) production végétale (1) index (1) Dynamics (1) Parts (1) Parts (1) Teff (1) Wheat (1) Sorghum (1) Seasons (1) Rice (1) Regression analysis (1) Rain and rainfall (1) Oats (1) Nature (1) Millets (1) Lead (1) Example (1) Dynamics (1) Dry farming (1) Dates (Fruit) (1) Corn (1) Barley (1) Average (1) Regions (1) Yields (1)