The influence of dosages and application period of pyribenzoxim,metamifop,and propyrisulfuron on height growth and yield of water direct-seeding rice was explored via pot incubation test.The results indicated that 5%pyribenzoxim EC 60 and 80g·hm~(-2)(active ingredient,the same below)had notably higher influence on the height growth and yield of water direct-seeding rice than 40g·hm~(-2);9.5% propyrisulfuron SC 100g·hm~(-2)had markedly higher influence on the height growth and yield of water direct-seeding r...