作物学报2017，Vol.43Issue(6)：875-884,10.DOI:10.3724/SP.J.1006.2017.00875
不同栽培模式对油菜产量和倒伏相关性状的影响
Effects of Different Cultivation Modes on Canola Yield and Lodging Related Indices
摘要
Abstract
To establish a reasonable cultivation and management mode matching canola production, three cultivation modes in-cluding farmers practice cultivation (FP), super high cultivation (SH) and high yield and high efficiency cultivation (HH) were adopted with middle-mature winter canola Huashuang 5 in single cropping rice region (Zhijiang) and early-mature winter canola Huazao 291 in double-rice cropping region (Wuxue) of Hubei province at high and low soil fertility levels. Biomass accumulation, radiation use efficiency (RUE), yield and lodging related indices were investigated and analyzed. The light inception rate (LIR) and RUE under SH and HH were higher than those under FP during whole growth period. The deceleration rate of LIR at the end of growth stage was least under HH as the rate of bolting nitrogen increased, which was benefit for biomass accumulation. The harvest index and yield of SH and HH were significantly higher than those of FP. Although HH had higher yield than SH, the dif-ference was not significant. The lodging index of HH was lower than that of SH which indicated that HH had higher lodging re-sistance. All these revealed that HH could achieve high yield and high lodging resistance with lower nitrogen cost compared with SH. It is concluded that the HH cultivation model can promote the mechanical harvesting efficiency by increasing lodging resis-tance and reducing nitrogen cost due to higher plant density. Therefore, HH should be encouraged to extend in the Yangtze River Valley in the future for increasing mechanical canola productivity.关键词
油菜/栽培模式/产量/倒伏/光能利用Key words
Canola/Cultivation modes/Yield/Lodging/Radiation use efficiency引用本文复制引用
蒯婕,左青松,陈爱武,程雨贵,梅少华,吴江生,周广生..不同栽培模式对油菜产量和倒伏相关性状的影响[J].作物学报,2017,43(6):875-884,10.基金项目
本研究由国家公益性行业(农业)科研专项经费项目(201203096), 国家科技支撑计划项目(2014BAD11B03), 国家现代农业产业技术体系建设专项(NYCYTC-00510)和高校自主科技创新基金(2013PY001)资助.This study was supported by the Special Fund for Agro-Scientific Research in the Public Interest (201203096), the National Key Technology R&D Program of China (2014BAD11B03), the China Agriculture Research System (NYCYTC-00510), and the Fundamental Research Funds for Central Universities (2013PY001). （农业）
