可作为北方寒地稻作区的施肥技术。
This method of fertilizing can be used in the cold region in North China.
吉林省属寒地稻作区，由于气温低、无霜期短，有25%的面积适合种植中早熟品种。
Jilin province belongs to cold district for rice plant. Because of its low temperature and short frostless period, 25 percent areas are suitable for planting middle or early maturing variety.
“防风故国”的上杨村，是江南稻作文化区。
Shangyang village is a place with rice culture in the south of the Yangzi.
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