A flowering stimulant composition with Nitrobenzene for Agricultural and Horticultural flowering crops including Nitrobenzene as an Active ingredient, with NaturalSyntheticIonic Non Ionic chemical surfactant and base with petro Non petro solvent base. The wired power source connection is configured to receive power from an external source. Methods for producing a maize plant that comprises crossing hybrid maize variety 38R50 with another maize plant. The purifying performance after warming up improves by loading Rh with high density on the exhaust-gas downstream side that is likely to become rich atmosphere.