Table 2.

Treatments for foliar fertilization at heading

Treatment	Acronym	Composition
Urea	UREA	25 kg ha−1 N as urea (54.5 kg ha−1)
Urea + animal biostimulant	UREA + AN	25 kg ha−1 N as urea + 2.5 kg ha−1 hydrolyzed bovine meat waste
Urea + vegetal biostimulant	UREA + VEG	25 kg ha−1 N as urea + 2.5 kg ha−1 hydrolyzed castor-oil wastes
Ca, Mg and K nitrates	NO3	25 kg ha−1 N as nitrates + urea (38.8 kg ha−1 Ca(NO3)2, 45.6 kg ha−1 Mg(NO3)2, 81.7 kg ha−1 KNO3, 7.93 kg ha−1 urea)
Ca, Mg and K nitrates + animal biostimulant	NO3 + AN	25 kg ha−1 N as in NO3 + 2.5 kg ha−1 hydrolyzed bovine meat waste
Ca, Mg and K nitrates + vegetal biostimulant	NO3 + VEG	25 kg ha−1 N as in NO3 + 2.5 kg ha−1 hydrolyzed castor-oil wastes