作物研究2012，Vol.26Issue(5)：482-485,4.DOI:10.3969/j.issn.1001-5280.2012.05.18
娄底市稻板田直播油菜适宜播种期及气象条件研究
Research on Suitable Sowing Time and Meteorological Conditions of Direct Seeding Rapeseed in Paddy Field in Loudi City
摘要
Abstract
The biological characters and climatic suitability degree at different growth stages of rapeseed in interval sowing experiment in 2010 - 2011 were analyzed by linear correlation analysis method and fuzzy evaluation method. The results showed that; rapeseed sowed on October 15th showed longer vegetative growth period, bigger climate suitability value at seedling stage, better growth vigor of seedlings before winter and higher yield. With the delay of sowing time, the vegetative growth period shorten, climatic suitability value decreased, growth vigor of seedlings before winter weakened and yield decreased. Therefore, sowing date of direct seeding rape in paddy field should be arranged according to harvesting time of double cropping late rice, and the suitable sowing time was the middle of October.关键词
油菜/播种期/气象条件/模糊评判法/娄底Key words
Rapeseed/Sowing date/Meteorological conditions/Fuzzy evaluation method/Loudi City分类
农业科技引用本文复制引用
伍智文,蔡海朝,李万里,邓见英,王艳青..娄底市稻板田直播油菜适宜播种期及气象条件研究[J].作物研究,2012,26(5):482-485,4.基金项目
湖南省气象局科技项目(201217). （201217）
