Years of excessive chemical fertilizer use have reduced the productivity of rice paddies in many parts of Hubei Province, according to a news report from China's official broadcasting service . Mr. Song, a Hubei rice producer who has contracted 1650 mu (272 acres) of land, says yields have been declining and he now plans to leave a lot of his land fallow or plant other crops on his rented fields. Describing a kind of treadmill process, he says his chemical fertilizer application has doubled but yields are about the same as a decade ago. According to the article, this phenomenon of declining yields and land left idle is common all over Hubei Province, one of China's leading rice-producing areas. An agricultural technician explained that the lower yields are due to the compaction of the soil. After many years of applying chemical fertilizer, a 20-cm. layer of fertilizer has built up. Oxygen cannot penetrate below the surface. The soil is difficult to plow, whether using water...
Retired USDA economist Fred Gale peers through the "dim sums" of puzzling data to provide insight about China's agricultural markets in bite-size pieces like Chinese "dim sum" snacks.