Nitrification inhibitors (NI) are aimed at improving N-fertilizer use efficiency in cropping systems. This study to assess the nitrification inhibition potential and non-target effects of dry leaf powders (botanicals) ten plant species [neem (Azadirachta indica), lantana (Lantana camara), karanda (Pongamia pinnata), Brachiaria humidicola, cinnamon (Cinnamomum verum), clove (Syzygium aromaticum)...