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Presentation

2nd Revision

Introduction

 
Data - Agricultural Technology
Chemical and organic fertilizer application in China, 1952 - 1993 (kg / hectare)
This chart shows the increase of chemical and organic fertilizer application in China between 1952 and 1993. While the use of organic fertilizers was predominant between 1950 and 1960, the use of chemical fertilizers  increased rapidly since the late 1970s. By 1982, Chinese farmers were applying more chemical than organic fertilizers on their fields; by 1993 they were using about twice as much chemical than organic fertilizers.

Comment: Please note that the amount of fertilizer application is probably over-estimated, due to an under-estimation of the cropland area in these statistics.

Sources: Wang, Q. / Halbrendt, C. / Johnson, S.R. (1995): Grain Production and Environmental Management in China's Fertilizer Economy. In: Journal of Environmental Management, Vol. 47, 283-296. And: China Statistical Yearbook, 1998. State Statistical Bureau, People's Republic of China, Beijing. p.393

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Revision 2.0 (First revision published in 1999)  - Copyright 2011 by Gerhard K. Heilig. All rights reserved. (First revision: Copyright 1999 by IIASA.)