Acceptable herbicide compounds or their derivatives or salts in agriculture, compounds containing these ingredients, herbicide use, i.e. methods of controlling harmful plants, and unwanted vegetation, This includes allowing at least one pyridine compound to function as an effective quantity of herbicide in plants, seeds and / or habitats. 1. Requirement 1: formula compound (1),e. R1 is c83217c83331326aque-ojilo, c83216c83331318c8326c8326aque, c83232323232323aque, c833238326aque, c8332331c8326aque and c8323323aque；(c) 232323232323232323232323232323232323232323232323232323232323232323232323a. Alcoxiccarbon-c83217c8316262-acquilo, c83217c833316262-haloalcandil-c2421833183268c833266aquie, c8331c838383226-haloalcoxcarbonil-c8321833832626-acquilo； a. Oh, c83217c83316a Alcoy, c83218d-83316a-alcoy, c8321a-alcoy, c8321a-alcoxi, c83218d318326a-haloalcoxy-c8321c8318d318331318326a-alcoxi, c8321833131；C832183318c-c8332183318alcoxic； a. 232323232323232323232323232323232323232323232323232323232323232323232323a. Nilox-c83217c833316a-haloalcoxi, c8332323g-83326a-acquinioxi-c8323318326a-alqueniloxi；a. 2323232323232323232323232323232323232323232323232323232323232323 asphalt, c83236c83326 asphalt-c83231； (c) Cccccccccjjjjju； (c1831832121212121212121 halalcoxi (c8321c83131832621 alcoxi) carbon-c8332183313183268a alcoxi (c8321c833183266e halalcoxi) carbon-c8321c83331832626 alcoxi； （C832188331C8326-alcoxi）Carbonil-C8321C83318C83326AOC；(c) 2323838383831-c-cc8321211831831831831831831831831831831-c-cc831-c1831832323-alcox (c8327c8331832626-alcoy-c83216c8316c832626-halogiel) carbon-cc221833183266coxy (c83216c83316coxy-c8322183318326aquil) carbon-c8321c833183326263-halobox； （c）C8321；e.Acquil-C83217C833216a-Haloalcoxy（C8321883318C833218C832626-Haloalcoxy-CC22183268C183267C83268C83218C08318326AOC-Carbonil-C832218C83316C8326AOC）Carbonil-C83218331833183326C26Aquiltio；(c) (c) c-c8322131； a. -- or or or or section 2618318323183183183183183183183183183183183183183183183183183183183183 (L) carbonil-c8
