Fig. 10From: What evidence exists for the effectiveness of on-farm conservation land management strategies for preserving ecosystem services in developing countries? A systematic mapNumber of studies/year measuring organic and inorganic fertiliser application (1995–2014). The figure shows that in the last two decades since 1995 there has been an increase in studies in both inorganic and organic fertiliser. However, inorganic fertiliser has been studied more frequently studied that organicBack to article page