February 23, 2020

The increase in China's agrochemical fertilizer consumption mainly comes from the intensive horticultural crops

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The research team of Li Xiubing of the Institute of Geographic Sciences and Natural Resources Research of the Chinese Academy of Sciences published in the Journal of Geographical Sciences the effect of land use change on chemical fertilizer application. The temporal and spatial characteristics of China's agricultural fertilizer consumption in the past 10 years were discussed at the regional and provincial level. .

The study found that the increase in China's agrochemical fertilizer consumption mainly comes from intensively intensive horticultural crops rather than the field grain crops. Therefore, there is a traditional understanding of the quantitative fertilizer application in China's grain plantation industry and it is worth reviewing.

During the 10 years from 1998 to 2008, the annual consumption of agricultural fertilizers in China increased by 1201.3 million tons, of which the contribution rate of horticultural crops represented by vegetables and fruits was 71.6%. From the perspective of consumption, the consumption of food crops in food crops fell from 71.0% to 57.8% in 10 years, while the horticultural crops increased from 19.3% to 30.8%.

From a regional point of view, the increase rate of chemical fertilizer application in the central and western regions was significantly higher than the national average, reaching 18.9 percentage points, while the eastern region was 18.9 percentage points lower than the national level, indicating that the focus of agricultural fertilizer consumption is shifting to the central and western regions. . The provinces with large growth rates of fertilizer use for food crops are mainly concentrated in the northern, northeastern and central provinces, and Heilongjiang and Inner Mongolia provinces (districts) are the most.

Between 1998 and 2008, the reduction in China's grain crop fertilizer consumption was mainly due to the reduction in planting area; the increase in the consumption of vegetable crop fertilizers was mainly due to the expansion of planting area, while the increase in the amount of fertilizer application in orchards was increased by unit area. And the increase in area has two factors.

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