N - (tetrazol-5-il) and N - (triazol-5-il) propanediol amines (1) and their use as herbicides. In formula (1),B stands for N or CH, while r, R1,R2,R3,R83088 and r83099 represent groups such as hydrogen or halogen, or organic groups such as tar or phenyl. 1. Requirements 1: n - (tetrazol-5-il) and N - (triazol-5-il) chloropropamide (1),where B is N or CH； R is selected from the group consisting of hydrogen, C₁₋₆ alkyl,C₃₋₇ cycloalkyl,C₃₋₇ cycloalkyl-C₁₋₄ alkyl,wherein the C₃₋₇ cycloalkyl groups in the two aforementioned radicals are unsubstituted or are partially or totally halogenated, C₁₋₆ haloalkyl,C₂₋₆ alkenyl,haloalkenyl C₂₋₆,1. C 83228331 asphalt；haloalquinilo C₂₋₆,C₁₋₄ alkoxy-C₁₋₄ alkyl,C₁₋₄-C₁₋₄-alkyl haloalkoxy,R -S (O) -alquilo CR -C (3DO) -alquilo CR7496； = O-C (= O) - asphalt c8321c8331；R7497；]R7501；]Phenyl-z and heterocyclic-z, wherein heterocyclic is a saturated, partially or partially unsaturated heterocyclic cycle, or a single aromatic ring composed of 8, 9 or 10 members, including 1, 2, 3 or 4 atoms selected from O, N and s groups as members of the ring, 1. Two, three or four R groups were the same or different； R 1 was selected from cyanogen-z 1 group,a. Halogen, nitrogen, c8332128a；C₂₋₈ alkenyl,1. C 83228331 asphalt；Halogenated tar c83218c8331-8328；C₁₋₈ alkoxy,C₁₋₄ alkoxy-C₁₋₄ alkyl,C₁₋₄-alkoxyC₁₋₄-alkoxy,1. C83218c8331248a - lease c83218c833124248a；1. C83218c8331c224248a asphalt c83312418c83248a-z1；C₂₋₆ alkenyloxy,1. Asphalt c832222；hello Coxi C₁₋₆,C₁₋₄-C₁₋₄-alkyl haloalkoxy,hello Coxi C₁₋₄-alcoxi C₁₋₄-Z¹,R¹ᵇ-S (O) ₖ-Z¹-phenoxi-Z¹-heterocycliloxi-Z¹,Among them, heterocyclic bicycle is a kind of saturated, partially unsaturated or unsaturated heterocyclic, or monocyclic aromatic, which is composed of 5 to 6 members, or 8, 9 or 10 oxygen fixed members, including 1, 2, 3 or 4 heteromorphic atoms as members of the rings selected from O, N and s groups, Where the periodic groups of phenyl and isopropenyl are not replaced or replaced by 1, 2, 3 or 4 R1
