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Fig. 3 | Chemical and Biological Technologies in Agriculture

Fig. 3

From: Fertilizing behavior of extract of organomineral-activated biochar: low-dose foliar application for promoting lettuce growth

Fig. 3

Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) of DW (deionized water) and PCS25 (foliar spray of pinewood, clay, and sand biochar extract at 1:25 dilution) treated lettuce adaxial leaf surface. a Secondary electron image of control leaf showing stomata; b EDS spectrum of a; c secondary electron image of PCS25-treated leaf showing stomata and presence of organomineral complexes; d EDS spectrum of c; e high-resolution SEM image showing the organomineral complex formed or associated inside the stomata. f EDS spectrum of e showing the presence of high mineral complexes

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