| Abstract: The overall changes of the reduced amount of chemical fertilizer, amount of chemical fertilizer, pesticide cost, double reduction economic coefficient and the changes in different regions of the pepper per 667 m2 from 2011 to 2017 were analyzed. On the whole, the average amount of chemical fertilizer per 667 m2 decreased in 11 provinces and cities, while the cost of pesticide, net profit and double decrease economic coefficient increased. According to the analysis of different production regions, the amount of fertilizer reduced per 667 m2 was the smallest in cold regions in northeast China. The Yangtze river and south China showed a downward trend, while the rest all increased. In the cold region of northeast China, the pesticide cost per 667 m2 varied greatly. The Yangtze river and the south China region had a downward trend,while the rest all increase. The net profit of northeast cold region, Yangtze river and south China regionincreased, and the rest all declined. The economic coefficients of the Yangtze river and south China showed a weak upward trend, while the others showed a downward trend. |