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Chemical and Biological Technologies in Agriculture
Fig. 4 | Chemical and Biological Technologies in Agriculture

Fig. 4

From: Pre-activated biochar by fertilizers mitigates nutrient leaching and stimulates soil microbial activity

Fig. 4

Plant (lettuce) biomass. Fresh plant aboveground (colour columns above the axis X) and root (colour columns below the axis X) biomass, dry aboveground and root biomass expressed as the shaded parts of the respective fresh biomass value columns. Mean values ± standard error of mean, different letters indicate differences among treatments at the statistical level of significance p ≤ 0.05

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