4种土壤处理剂对日光温室蚯蚓的防治效果

摘要

通过田间药效试验，测定了42%威百亩水剂﹝30 kg·（667 m2）-1﹞、21%石灰氮颗粒剂﹝60 kg·（667 m2）-1﹞、96.5%碳酸氢铵颗粒﹝200 kg·（667 m2）-1﹞和4.5%高效氯氰菊酯乳油﹝800 mL·（667 m2）-1﹞4种药剂对菜田蚯蚓的防治效果。结果表明：施药后30 d，4种药剂对蚯蚓的田间防效均达到80%以上；施药后180 d，96.5%碳酸氢铵颗粒和42%威百亩水剂对蚯蚓的防效较高，分别为70.31%和63.99%。96.5%碳酸氢铵颗粒和42%威百亩水剂交替使用可以有效控制菜田蚯蚓的数量。%The control efficacy of 42% Metam sodium AS(450 kg·hm-2),21% calcium cyanamide GR(900 kg·hm-2),96.5% Ammonium Bicarbonate GR(3 000 kg·hm-2)and 4.5% Beta cypermethrin (12 000 mL·hm-2)on greenhouse earthworm were investigated by field tests in this study.The results showed that the control effects of all these 4 tested agents against greenhouse earthworm reached over 80%after applying the pesticides for 30 days.And after applying the pesticides for 180 days,the field control efficacy of 96.5%Ammonium Bicarbonate GR and 42% Metam sodium AS could reach 70.31% and 63.99%,respectively.The result also indicated that the alternative usage of 96.5%Ammonium Bicarbonate GR and 42%Metam sodium AS could effectively control the number of greenhouse earthworm.