Furthermore, nitrogen run-off can leach into lakes, rivers and coastal waters, hurting rural industries such as fishing and aquaculture in which China is expected to gain market share over the next decade (OECD-FAO, 2014). Such contamination can also taint the drinking water supply. In addition, the production of chemical fertiliser in China is a significant source of greenhouse gas emissions (Zhang et al., These include a tax exemption on value added tax for almost all fertiliser products and a subsidy for fertiliser transportation (Huang and Xiang, 2014).