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.
在寒冷稻作区，种植早熟品种是防卸低温冷害的根本措施。
It is the basic measure to resist low temperature injury with premature cultivar of rice in cool region.
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.
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