【摘要】 通过盆栽试验明确了农美利等 6种除草剂对水稻的药害症状及其发展过程。同时通过对不同影响因子的研究 ,初步探明农美利对不同水稻品种产生药害的差异较大 ,其中粳稻品种表现的药害重于籼稻和杂交稻品种 ;农美利和苯噻酰草胺对 1～ 3叶期水稻的药害重于 4叶期稻苗 ;农美利、苯噻酰草胺及骠马对水稻造成的药害随用药量的加大而明显加重 ;土壤上有薄水层时施药 ,可减缓农美利药害 ;高温条件下 ,农美利更易产生药害 ;农美利在不同土壤上应用 ,水稻受药害程度也有所不同 ;初步明确安全剂可减缓农美利药害的发生更多还原

【Abstract】 In studies on phytotoxicity of bispyribac sodium and 5 other herbicides to rice by pot tests in greenhouse, plant injury symptoms were described, poisoning process of rice by herbicides observed, and factors on the phytotoxicity assessed. Bispyribac sodium is more heavily phytotoxic to japonica rice than to indica rice and hybrid rice, and 1-3 leaf stage rice seedling is more vulnerable by bispyribac sodium and mefenacet than 4 leaf stage rice seedling. The higher dosage of bispyribac sodium, mefenacet and fenoxaprop p ethyl, the more serious the damage. Rice planted in different soil shows different degrees of pytotoxicity by bispyribac sodium, and it causes less toxicity to rice if there is a thin layer of water above soil during spraying, while the phytotoxicity occurs heavily at high temperature. The phytotoxicity of bispyribac sodium may be reduced by a safener.更多还原