不同杀菌剂对水稻稻瘟病的防治效果研究

Control Effect of Several Fungicides to Rice Blast

以圣稻14为试验材料,比较了6种杀菌剂对鲁南稻区稻瘟病的防治效果。结果表明:供试药剂对稻瘟病均有一定的防治效果,其中以40%异稻瘟净乳油2 250 m L/hm2防效最好,效果达90.3%;40%稻瘟净乳油2 250 m L/hm2,效果为88.3%;50%多菌灵可湿性粉剂3000 g/hm2的防效最差,效果为72.6%。

To compare the control effect of several fungicides, field randomized block test was used to study the influence of six medicines on the field treatment effect of Pyricularia oryzae Cav.The results showed that all pesticides tested agent of rice blast had certain control effect. 40% iprobenfos 2 250 mL/hm^2 got the best control effect, and was 90.3%. Followed were control effects of 40% kitazin EC 2 250 mL/hm^2,the control effect was 88.3%; 50% carbendazim of 3 000 g/hm^2 of the control effect was the worst, and was 72.6%.