Fuente: WIPO "tobacco agriculture" The utility model discloses a tobacco plant pitch measuring device. The measuring ruler comprises a main measuring ruler, a sliding lantern ring, an elastic sheet O, an elastic sheet A, an auxiliary measuring ruler and an elastic sheet B, the sliding lantern ring is sleeved on the main measuring ruler in a manner of sliding up and down; the sliding lantern ring is fixedly provided with an elasticpiece O perpendicular to the main measuring ruler, an elastic piece A is perpendicularly arranged at the scale starting end of the main measuring ruler, the scale tail end of the main measuring ruleris sleeved with a slidable telescopic auxiliary measuring ruler, and an elastic piece B is perpendicularly arranged at the end, away from the scale starting end of the main measuring ruler, of the auxiliary measuring ruler. According to the utility model, the slidable sliding lantern ring is arranged, so that the elastic sheet O is positioned at the leaf position of 1/3 height of a tobacco plant;by sliding the main measuring scale, the elastic sheet A at the bottom end is placed at the fifth leaf position below the elastic sheet O, then the auxiliary measuring scale extends to the fifth leafposition above the elastic sheet O, the average pitch of the plant can be conveniently measured by reading the numerical value of the auxiliary measuring scale at the elastic sheet B and dividing thenumerical value by 10, and the device has the advantages of being simple in structure, high in measuring efficiency and capable of saving manpower.