Dans un contexte de ressource en eau limitée, cette culture d’été présente une plus grande tolérance au stress hydrique du fait d’un système racinaire puissant. Elle garantit une production de biomasse correcte, même en l’absence d’irrigation. Irriguée et en sols bien pourvus, la culture du sorgho fourrager peut atteindre des rendements très élevés.
Dans de nombreuses régions françaises, les conditions climatiques de l'année ont entrainé des déficits de pluie qui ont pénalisés les récoltes aussi bien d'herbe que de maïs. Les stocks fourragers sont donc mis à mal. Une des pistes pour combler rapidement un déficit fourrager est celle des coproduits.
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