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Yield performance of machine-transplanted double-season rice grown following oilseed rape

文献类型： 外文期刊

作者： Huang, Min 1 ; Tian, Alin 1 ; Zhou, Xuefeng 1 ; Gao, Wei 1 ; Li, Zhibin 1 ; Chen, Ge 1 ; Li, Zusheng 2 ; Chen, Yumei 3 ; Liu, Longsheng 3 ; Yin, Xiaohong 1 ; Zou, Yingbin 1 ;

作者机构： 1.Hunan Agr Univ, Southern Reg Collaborat Innovat Ctr Grain & Oil C, Changsha 410128, Hunan, Peoples R China

2.Yueyang Acad Agr Sci, Yueyang 414000, Peoples R China

3.Hengyang Inst Agr Sci, Hengyang 421101, Peoples R China

4.Guangxi Acad Agr Sci, Rice Res Inst, Guangxi Key Lab Rice Genet & Breeding, Nanning 530007, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2019 年 9 卷

页码：

收录情况： SCI

摘要： Growing oilseed rape in the fallow season may be a feasible alternative to growing green manure (e.g. Chinese milk vetch) for improving rice productivity. The objective of this study was to determine the yield performance of machine-transplanted double-season rice (i.e. early-and late-season rice) grown following oilseed rape. Field experiments were conducted to compare machine-transplanted double-season rice grown following oilseed rape, Chinese milk vetch and fallow (i.e. no crop) at Hengyang and Yueyang, Hunan Province, China in three cropping cycles from 2014 to 2017. Results showed that machine-transplanted double-season rice grown following oilseed rape and Chinese milk vetch produced similar grain yield, which was higher than that grown following fallow across two sites and three cropping cycles. The higher grain yield of machine-transplanted double-season rice grown following oilseed rape and Chinese milk vetch was attributable to improvement in both sink size (spikelet number per m(2)) and source capacity (total biomass). However, the reasons for the improved sink size of machine-transplanted double-season rice grown following oilseed rape and Chinese milk vetch were not entirely the same. Growing oilseed rape increased panicle size (spikelet number per panicle) and panicle number in early-and late-season rice, respectively, while growing Chinese milk vetch increased panicle number in both the early-and late-season rice. Our study suggests that growing oilseed rape in the fallow season is a useful alternative strategy for improving productivity of machine-transplanted double-season rice.

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