대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

Application of Recycled Gypsum on Alkali Soil for Improving Agricultural Productivity in China

  • Akio, Tokuumi (Soka Recycling Center, YM Enterprise Corporation Co., Ltd.) ;
  • Tsureyasu, Yanagi (Soka Recycling Center, YM Enterprise Corporation Co., Ltd.) ;
  • Sun, Yi (Institute of Soil and Fertilizer, Jilin Provincial Academy of Agricultural Sciences) ;
  • Gao, Yushan (Institute of Soil and Fertilizer, Jilin Provincial Academy of Agricultural Sciences) ;
  • Zhao, Xiezhe (Institute of Soil and Fertilizer, Jilin Provincial Academy of Agricultural Sciences)
  • 발행 : 2001.10.01
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초록

Gypsum has been known as a prominent material for improving alkali soil, and this material can be supplied easily in large scale by recycling waste gypsum plasterboard from construction and demolition sites in advanced countries. In April 2000, in the part of western Jilin Province in China, where alkali soil spread vastly, we conducted a cultivating experiment of corn and rice after treating with granule recycled waste gypsum at six alkali soil fields which total area were 14000$m^2$. We confirmed that pH of soil decreased in a short period and alkali soil changed soft a desirable condition for farm work, and furthermore, gypsum caused to accelerate the growth of a plant, both corn and rice.

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