在马铃薯生产中分别进行了“934”增产剂播种前土壤处理和现蕾期叶面喷施两种方式的试验。土壤处理分高肥和低肥两个小区 ,试验结果表明 :“934”增产剂用于土壤处理时 ,在高肥情况下增产不明显 ,低肥增产效果显著。但无论高肥还是低肥区 ,大中薯率均有显著提高 ,淀粉含量稍有下降。用于叶面喷施时 ,随着喷施浓度的增加 ,产量呈下降趋势 In the potato production were conducted before the “934” yielding agent before sowing soil treatment and budding two methods of foliar spray test. The results showed that when “934” yield increasing agent was used for soil treatment, the yield increase was not obvious under high fat condition and the effect of low fat yield increasing was remarkable. However, no matter in high-fat or low-fat area, the rates of medium-sized and medium-sized potato significantly increased, while the starch content decreased slightly. When applied to foliar spray, yield decreased with the increase of spraying concentration