testig Baiclean on potato in Jiuen Agri farm

Jiu'En Agri plant potato in the saline and alkaline land, they choose Baiclean instead of Azoxystrobin and root stimulate. The following pictures shows the differenct condition of potato under the same measurement.:  

On June 17th, the Jiuen party's technician show us the Stem ulcer condition of potato after using Baiclea:

contrast to Azoxystrobin, there also occured some tar spot disease.

under the condition of low dosage of Baiclean(2250ml/hec), there still occured tar spot disease to some plants.

dosage 2250ml/hec, no tar spot disease occured in the three testing area.