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为检验诱抗剂防治水稻稻瘟病的效果,1996～1999年在湖南省攸县和龙山县进行了小区试验和示范试验.用诱抗剂在稻瘟病发病初期和孕穗末期拌细砂土撒施,对叶瘟和穗瘟都有显著的防治效果.1996～1997年龙山县试点的小区试验结果,施用诱抗剂15kghm2,对叶瘟和穗瘟的平均防效分别为94.3%和92.2%,略高于稻友30kghm2的平均防效93.7%和91.6%,并显著高于20%三环唑1000倍液的平均防效86.0%.1997～1999年攸县试点的小区试验结果,施用诱抗剂15kghm2,对叶瘟和穗瘟的平均防效为75.9%和75.2%,施稻友30kghm2的防效分别为78.6%和78.3%,而20%三环唑1000倍液的防效分别只有69.1%和64.4%.1997和1999年两试点的示范试验结果表明,施诱抗剂15kghm2对叶瘟和穗瘟的平均防效分别为899%和844%,均高于20%三环唑1000倍液的防效.
In order to test the effect of inducer on the control of rice blast disease, plots and demonstration experiments were conducted in Youxian and Longshan counties of Hunan Province from 1996 to 1999. With the use of inducer antagonists, the fine sand was mixed with fine sand in the early and late booting stages of rice blast , And had significant control effects on leaf blast and frostbite.The results of plots plot trial in Longshan County from 1996 to 1997 showed that the average control effect on leaf blast and panicle blast was 15.43% and 92.2% respectively, Slightly higher than the average control effect of rice buddy 30kghm2 93.7% and 91.6%, and significantly higher than 20% tricyclazole 1000 times the average control efficiency of 86.0% 1997 ~ 1999 Youxian pilot plot test results, the application of inducement 15kghm2, the average control effect on leaf blast and head blast was 75.9% and 75.2%, the control effect of 30kghm2 was 78.6% and 78.3% respectively, while the control effect of 20% tricyclazole 1000 times solution was only 69.1 % And 64.4%, respectively. The results of demonstration experiments in 1997 and 1999 showed that the average control effect of 15kghm2, an attractant antagonist, against leaf and panicle blast was 899% and 844% respectively, both higher than 1000 times that of 20% tricyclazole Anti-liquid effect.