湖南农业科学Issue(12)：1-4,4.DOI:10.16498/j.cnki.hnnykx.2025.012.001
湘南不同纬度地区"稻—稻—油"三熟制品种筛选研究
Screening of Varieties for Rice-Rice-Oilseed Rape Triple Cropping Across Different Latitudes in Southern Hunan
摘要
Abstract
To identify the varieties suitable for the rice-rice-oilseed rape triple cropping system across various latitudes in Southern Hunan,we introduced two early rice varieties('Zhuliangyou 819'and'Xiangzaoxian 24'),three late rice varieties('Yueyou 9113','Wuyou 308',and'Taiyou 398'),and two oilseed rape varieties('Fengyou 112'and'Yangguang 131')with short growth periods to conduct experiments at three altitudes.The growth periods,grain yields,and economic benefits of different varieties were compared.The results showed that as the latitude increased,early rice,late rice,and oilseed rape demonstrated prolonged growth periods,and oilseed rape presented increased yields.Rational combinations of crop varieties alleviated rotation conflicts and improved profits of the triple cropping system.Comprehensively considering,it is recommended that in the rice-rice-oilseed rape triple cropping system in southern Hunan,the combination of'Zhuliangyou 819'-'Wuyou 308'/'Taiyou 398'-'Fengyou 112'can be adopted in low-and middle-altitude areas.In high-altitude areas,the early rice variety'Xiangzaoxian 24'with a more flexible seedling age can be adopted.Timely late-sowing and early transplanting with vigorous seedlings can also alleviate rotation conflicts,enabling high and stable yielding of grain and oil throughout a year.关键词
湘南/纬度/稻—稻—油/三熟制/品种筛选Key words
Southern Hunan/latitude/rice-rice-oilseed rape/triple cropping system/variety screening分类
农业科技引用本文复制引用
邓力超,李荣德,刘晓玲,何华元,吴晓峰,杨日华,周兴,徐理佳..湘南不同纬度地区"稻—稻—油"三熟制品种筛选研究[J].湖南农业科学,2025,(12):1-4,4.基金项目
湖南省农业科技创新资金项目(2024CX33) （2024CX33）
