摘要
为综合评价并推荐免耕山地油菜最佳播期在低纬高原山区推广应用,采用灰色关联度和模糊聚类等分析方法,对玉溪市2011—2015年4个不同海拔试点10个播期的免耕山地油菜农艺性状和产量效益进行对比分析。结果表明:(1)不同播期油菜的主要农艺性状有较大差异,提早播种的主要农艺性状明显优于传统播期(10月10日);(2)不同播期油菜产量与主要农艺因子的关联度差异较大;(3)不同播期间的产量效益存在不同程度的差异;(4)山地油菜最优播期因不同气象年度而有差异,暖冬年最优播期是8月10日—9月10日,冷冬年最优播期是8月30日—9月30日。综合评价5年10个播期的丰产性和稳定性,推荐低纬高原山区免耕山地油菜最佳播期为8月30日—9月10日。
To comprehensively assess and recommend the optimum seeding date of no-till rapeseed in low altitude mountain areas,comparisons of no-till rapeseed agronomic traits and yield of 10 seeding dates in 4 altitude areas were carried out from 2011 to 2015 in Yuxi by using grey relation analysis and fuzzy clustering analysis.The results indicated that:(1)there was significant difference of main agronomic traits among different seeding dates,the main agronomic traits of rapeseed of earlier seeding date were better than that of conventional seeding date(October 10);(2)the correlation between yield and main agronomic traits varied in different degrees;(3)the yield of different seeding dates varied in different degrees;(4)the optimum seeding date of no-till rapeseed depended on climate,the best seeding date in warm year was around August 10-September 10,whereas in cold year it was around August 30-September 30.Therefore,according to the comprehensive evaluation of the yielding ability and stability of rapeseed of 10 seeding dates during 5 years,the optimum seeding date of August 30-September 10 is recommended for no-till rapeseed in low altitude mountain areas.
作者
杨进成
刘坚坚
林姣姣
胡新洲
安正云
李红彦
瞿观
封军华
柏跃才
吴志林
施立安
李铷
Yang Jincheng;Liu Jianjian;Lin Jiaojiao;Hu Xinzhou;An Zhengyun;Li Hongyan;Qu Guan;Feng Junhua;Bai Yuecai;Wu Zhilin;Shi Li’an;Li Ru(Yuxi Academy of Agricultural Science,Yuxi Yunnan 653100;Yuanjiang Agricultural Tech Extension Station,Yuanjiang Yunnan 653300;Tadian Agricultural Science Station in Ershan,Ershan Yunnan 653200;Yimen Agricultural Tech Extension Station,Yimen Yunnan 651100;Plant Protection College of Yunnan Agricultural University,Kunming 650201)
出处
《中国农学通报》
2020年第10期18-24,共7页
Chinese Agricultural Science Bulletin
基金
云南省创新人才培养计划“山地油菜避灾高效栽培技术研究与应用”(2011CI103)
云南省现代农业产业技术体系建设专项资金“玉溪市田油菜高产高效种植技术集成示范”(ynnycyjstx-5)
玉溪市重点实验室计划“玉溪市油菜育种重点实验室建设”(ZX200901).
关键词
免耕山地油菜
播期
灰色关联度分析
模糊聚类分析
暖冬年
冷冬年
丰产性
稳定性
no-till mountain rapeseed
seeding date
grey relation analysis
fuzzy clustering analysis
warm year
cold year
yielding ability
stability
