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农美利等除草剂对水稻药害的研究
引用本文:赵学平,王秀梅,王强,吴长兴,戴芬.农美利等除草剂对水稻药害的研究[J].浙江农业学报,2000,12(6):368-373.
作者姓名:赵学平  王秀梅  王强  吴长兴  戴芬
作者单位:浙江省农业科学院植物保护研究所,浙江 杭州 310021
基金项目:浙江省"九五"重大科技项目(961102242);日本组合化学株式会社资助项目(1998~2000)。
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。

关 键 词:农美利  除草剂  药害  安全性  水稻
文章编号:1004-1524(2000)06-0368-06
修稿时间:2000年7月8日

Phytotoxicity of bispyribac-sodium and other herbicides to rice
ZHAO Xue-ping,WANG Xiu-mei,WANG Qiang,WU Chang-xing,DAI Fen.Phytotoxicity of bispyribac-sodium and other herbicides to rice[J].Acta Agriculturae Zhejiangensis,2000,12(6):368-373.
Authors:ZHAO Xue-ping  WANG Xiu-mei  WANG Qiang  WU Chang-xing  DAI Fen
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 mofenacet 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 ff 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.
Keywords:bispyribac- sodium  herbicide  phytotoxicity  safety  safener  rice
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