1、宋代的早稻和晚稻* 宋代的“早稻”和“晚稻”并不是意义上的早稻和晚稻,而主要指的是收获期上的早晚。即便是所谓“早稻”,也大多属于中晚熟品种。早稻、晚稻之间在大多数情况下并不构成复种关系。宋代各地都有早晚稻的分布,但所占比重各不相同.浙西、淮南等水稻主产区以种植晚稻为主,但其它地区却出现了早稻盛行的趋势;干旱和救饥是早稻盛行的主要原因,而太湖地区种植剔透则很大程度上是赋税和雨水所致. ”early rice” and “late r
2、ice” in the Song DynastyAbstractThe so called “early rice (zao dao)” and “late rice (wan dao) “ in the Song dynasty were not the same ones in
3、 the double harvest rice cropping system of modern sense, but the ones that harvest early or late, many of them belonged to middle and late-maturi
4、ng varieties. The so-called “late rice” distributed mainly in zhexi ( now the south part of Jiangsu and north part of Zhejiang) due to taxes and&n
5、bsp;rain, while the early rice became more and more popular in the other districts for the reasons of drought and famine .早、晚稻的划分既是稻作技术自身的需要,也是和条件相结合的产物。虽然早稻和晚稻的概念在宋代