《Table 1 Planting area of corn from 2010 to 2015》

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《Development Status and Industrial Security Countermeasures of Maize Deep-processing Industry in Shandong Province——Based on the Actual Investigation in Five Cities and Counties of Shandong Province》

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Corn is one of the important crops in Shandong Province.The horizontal and vertical comparisons of the development of corn in China and Shandong Province from 2010 to 2015 were shown in Table 1 and Table 2.From the perspective of planting area，since2010，China’s corn planting area has been increasing.The growth rate of the area showed a slow decline year-on-year，and the trend of corn planting in Shandong Province is synchronizing with that of the whole country.The annual planting area of corn fluctuated by8.5%of China’s total area，and was significantly lower than the national level in terms of growth rate.In recent years，it has generally stabilized at around 1.5%[2].From the corn production point of view，China’s corn production was stable at about 2.1×108t，of which Shandong’s output accounted for about 9.5%.The growth rate of corn production in Shandong Province fluctuated significantly.As a whole，the corn production in 2015 increased by 6.15%compared with that in 2010.The yield of corn in Shandong is basically stable，10%-11%higher than the national average yield perennially，stable at the level of 6 450 kg/ha[3].