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Research at Ban Sanpong,Sanpathong,Chiengmai

1980-1981 Farmers use poles to thresh the soy, while a woman winnows the soybean husks.

Research at Ban Sanpong,Sanpathong,Chiengmai

1980-1981 Threshing soy by machine. Threshing by hand or even by tractor is time consuming, so a machine has been hired to do the work.