Experiment about Control Efficacy of 4 Soil Treatment Agents on Greenhouse Earthworm
LI Hai-bo1 ☆，XIE Xue-wen2 ☆，ZHANG Guo-sen3，YIN Xue-yun3，LI Bao-ju2*
1Bioengeneering Department of Jiuquan Professional Technology Colleage，Jiuquan 735000，Gansu，China；2Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences，Beijing 100081，China；3Suzhou District Vegetable Technical Service Centre of Jiuquan City，Jiuquan 735000，Gansu，China
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．
