寒麻是六安地区生产上常用的一个优良大麻晚熟品种。为了探求它在当地的适宜播种期,作者在总结群众生产经驗和往年試验结果的基础上,从1961年12月15日至1962年3月15日,每隔十天,分期播种一次,共播十期,进行試驗。結果証明,12月25日至1月25日这一个月播种的均能获得較高的麻皮产量,亩产在三百斤以上,其中以1月15日播种的产量最高,亩收麻皮三百二十五斤。从1月25日以后,播种越晚,产量越低,3月15日播种的亩收麻皮只有二百二十三点七斤,比1月15日播种的减产31.2%。早播产量高,迟播产量低,是因为大麻是以收获茎秆靱皮纤维为目的的,早播能延长营养生长期。如12月15日和3月15日播种的,播种期虽相差三月之久,但現蕾、开花至种子成熟这段生 Hanma is a good late-maturing variety commonly used in the production of Lu’an. In order to explore its suitable sowing date in the locality, on the basis of summarizing the production experience of the masses and the experimental results in previous years, the author sowed once every ten days from December 15, 1961 to March 15, 1962 and co-broadcast Ten, for testing. The results show that from December 25 to January 25 this month to sowing can get a higher yield of hemp, yield more than three hundred pounds, of which the highest yield sown January 15, mu income linen Three hundred twenty-five pounds. From January 25 onwards, the later sowing, the lower the yield, only 227.2 mu of mu perday was sown on March 15, a decrease of 31.2% over the sowing date of January 15. Early sowing high yield, late sowing low yield, because cannabis is harvested for the purpose of stem stalk skin fiber, early sowing can extend the vegetative growth period. As sown on December 15 and March 15, although the sowing period is a difference of three months, budding and flowering till the maturity of the seed