Research Article

Assessing the Short-Term Effects of No-Till on Crop Yield, Greenhouse Gas Emissions, and Soil C and N Pools in a Cover-Cropped, Biodynamic Mediterranean Vineyard

Table 5

Effects of tillage on cover crop (CC) biomass and associated C and N inputs, vine yield, and grape chemistry in 2018, 2019, and 2020. Letters within the same column indicate significant differences between treatments and years at .

CC biomass (g·m−2)CC C input (g·m−2)CC N input (g·m−2)Yield (kg·vine−1)Anthocyanins (mg·g−1)Phenolics (mg·g−1)

2018No-till123 ± 25b52.3 ± 10.6a1.6 ± 0.3b2.63 ± 0.4b0.26 ± 0.02b0.09 ± 0.04b
Till158 ± 25b67.4 ± 11.3a2.4 ± 0.3b2.72 ± 0.5b0.30 ± 0.02b0.05 ± 0.03b

2019No-till222 ± 27a38.2 ± 4.9ab4.8 ± 0.9a3.86 ± 0.3a0.23 ± 0.03b0.03 ± 0.02b
Till154 ± 18a49.1 ± 11.2ab3.4 ± 0.4a3.94 ± 0.5a0.20 ± 0.03b0.04 ± 0.02b

2020No-till59 ± 17c24.4 ± 7b1.3 ± 0.3b2.99 ± 0.1b0.89 ± 0.07a0.14 ± 0.07a
Till62 ± 5c25.4 ± 2b1.5 ± 0.1b2.60 ± 0.2b0.88 ± 0.08a0.16 ± 0.08a