位于辽宁南端的金县,年平均气温10℃,无霜期180天,大部分是一年一茬春薯。和我国北方其它地方一样,农民历来有“磙子响、地瓜长(即甘薯)”之说,意思是秋收完了,打场、脱谷时期(10月)才是结薯高峰期(即薯块膨大高峰期)。为摸清甘薯的结薯规律,我们根据省、市 Located in the southern tip of Liaoning Jin County, the annual average temperature of 10 ℃, frost-free period of 180 days, most of the year in a row of spring potato. As in other parts of northern China, peasants have always had the idea of ​​“sweet potato, long sweet potatoes,” meaning that the harvest is over, the playing field, and the threshing period (October) is the peak of potato tuber Inflated peak). In order to find out the sweet potato tuber rule, we according to the province, city