Businesses face difficulties over silicon determination methods stockbot 0 16 05.11 09:13 https://vietnamnews.vn/economy/1655362/businesses-face-difficulties-ov… + 0 https://vietnamnews.vn/rss/economy.rss + 0 Before the Government's Decree No. 108/2017/NĐ-CP on fertiliser management issued in September 2017, businesses self-proclaimed quality and standards on packages and were responsible for the declared information.