Evolution of Soil Biochemical Parameters in Rainfed Crops: Effect of Organic and Mineral Fertilization

Table 2

Aboveground vegetal biomass (kg ha⁻¹) in the different crops over the period 1999–2003.

Treatment	1999/2000	2000/2001	2001/2002	2002/2003	Total accumulated^1
	Wheat	Fallow	Barley	Vetch
Chemical	9313 a	0	14201 a	3032 a	17233 a
Organic	9988 a	0	10419 b	2406 b	12825 b
No fertilization	10073 a	0	12668 ab	2098 b	14766 b
Average	9792	0	12429	2512	14941

In italic the crop sequence considered in this study (¹also for total accumulated data). Different small letters in the same column indicate significant differences at 𝑃<0.05.