论文部分内容阅读
25%嘧菌酯防治水稻纹枯病试验结果表明,25%嘧菌酯SE三种不同浓度供试药剂对水稻纹枯病的防治效果均较好,用药后安全,没有影响作物生长。25%嘧菌酯SE112.5g/hm~2、150g/hm~2、262.5g/hm~2第二次药后14天对水稻纹枯病的防治效果分别为67.53%、76.40%和76.23%。对照药90%多菌灵WG72克/公顷第二次药后14天对水稻纹枯病的防效为76.17%。在1%水平和在5%水平上,各处理防效之间差异不显著,都能达到一定防治效果。建议生产上使用25%嘧菌酯SE150-262.5克/公顷防治水稻纹枯病,于水稻分蘖盛期施药,间隔7天1次,共用药2次。
25% azoxystrobin control rice sheath blight test results show that 25% azoxystrobin SE three different concentrations of test agents on rice sheath blight disease control effect are good, safe after treatment, did not affect the crop growth. 25% azoxystrobin SE112.5g / hm ~ 2,150g / hm ~ 2,262.5g / hm ~ 2 14 days after the second treatment, the control effect on sheath blight of rice were 67.53%, 76.40% and 76.23% . Control drug 90% Carbendazim WG72 g / ha 14 days after the second dose of rice sheath blight control effect was 76.17%. At the level of 1% and at the level of 5%, there was no significant difference between the control effects of all the treatments, all of which could achieve a certain control effect. Proposed production of 25% azoxystrobin SE150-262.5 grams / hectare control of rice sheath blight, rice tillering Sheng Shi application, once every 7 days, a total of 2 times.