This study analyzes monthly price data for urea, phosphate rock, diammonium phosphate (DAP), triple superphosphate (TSP), and potassium chloride from the World Bank, covering the period from January 1967 to September 2024. The objective is to investigate interdependencies among major fertilizer...

This paper leverages Sri Lanka's 2021 chemical fertilizer import ban to quantify the costs of restricted fertilizer access for agriculture, trade, and welfare. Leveraging trade and production data, satellite-based yield estimates, and event studies, we document sharp declines in fertilizer...

Low agricultural productivity in developing countries is attributed towards the low and inefficient use of chemical fertilizers. Fertilizer demonstrations have been a useful extension tool to change the farmers' awareness and perception towards the right use of fertilizer application. About 180...

This study uses survey data for 1,366 rice farmers in the Jianghan Plain to examine the impact of Internet use on farmers' chemical fertilizer application. Key findings are as follows: First, Internet use significantly reduces the intensity of fertilizer application, and the result remains...