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参考实验研究Ⅰ的结果，现场防制试验使用０．０２％氯鼠酮和０．００５％敌溴灵稻谷毒饵，按４∶１、６∶１和８∶１配比混合制成Ⅰ、Ⅱ和Ⅲ３种混合剂型混合毒饵，在农田样方区以洞口投放为主，辅以线状投饵方法，１９９２年３月在广西鹿寨县龙江乡的４２５ｈａ农田进行防制效果试验。结果，农田小兽平均密度由防制前的１７．５６％下降至１．０９％；夹夜法测定，样方区３种混合剂型在投药后第６和第１５天的平均灭效依次达９６．５２％、９５．０２％和９０．９９％；食饵堆消耗法测定的灭效分别为９８．２２％、９２．１２％和９０．３２％。农田小兽中毒致死出现的时间高峰在投药后的第３～４天，居于原型药氯鼠酮和敌溴灵致死时间高峰之间，结果说明，这３种混合剂型对农田小兽的现场防制效果良好。
With reference to the results of experimental study I, field control experiments using 0.02% sodium chloride and 0.005% Eupromuril rice bait were mixed at ratios of 4: 1, 6: 1 and 8: 1 to prepare Ⅰ, Ⅱ And Ⅲ3 mixed-type mixed bait in the farmland to the main entrance to the hole, supplemented by linear feeding method, 1992 March in Longjiang Township, Luzhai County, Guangxi 425ha farmland control effect test. As a result, the average density of small animals in farmlands decreased from 17.56% before control to 1.09%. The average daily elimination efficiency of three mixed dosage forms on the 6th and 15th days after sampling 96.52%, 95.02% and 90.99%, respectively. The kill efficiencies of the prey depletion method were 98.22%, 92.12% and 90.32%, respectively. Farmland small animal poisoning death appear peak time in the first 3 to 4 days after administration, living in the protostaphol and chlorpromazine between the peak lethal time, the results show that these three mixed formulations of small animals in the field of farmland defense The system works well.