作物学报2017，Vol.43Issue(6)：885-898,14.DOI:10.3724/SP.J.1006.2017.00885
不同时期施用锌硅肥对优良食味粳稻产量和品质的影响
Effect of Zn and Si Fertilizers Applied at Different Stages on Yield and Quality of Japonica Rice with Good Eating Quality
摘要
Abstract
Two representative japonica rice cultivars with good eating quality, Nanjing 2704 and Nanjing 9108, were adopted with treatments of applying Zn, Si and Zn plus Si fertilizers at transplanting stage, productive tillering stage, and the tages of growing the fourth and the second leaves from top respectively. Compared with treatments of no Zn and Si fertilizers, Zn and Si fertilizers applyed at different stages could increase the yield of japonica rice with good eating quality. Among them, the yield of treatment using Zn fertilizer at the tage of growing the fourth leaf from top was the highest. The yield increased by 4.70% in 2015 and 7.82% in 2016 for Nanjing 2704, and by 5.50% in 2015 and 5.39% in 2016 for Nanjing 9108. In different treatments, the average yield of rice showed a trend of, Zn fertilizer > Si fertilizer > Zn plus Si fertilizers. The highest yield was obtained when the Zn or Zn plus Si fertilizers were applied at the stage of growing the fourth leaf from top, on when the Si fertilizer was applied at the productive tilling stage. Zn and Si fertilizers applied at different stages could decrease brown rice rate and increase milled rice rate and head rice rate of the milling quality. Meanwhile, the chalky grain rate and chalky degree were also decreased by using Zn and Si fertilizers. In different treatments, the appearance quality of rice was greatly improved when Zn plus Si fertilizers applied at the stage of growing the second leaf from top. Of protein and amylose contents varied with treatments, while gel consistency, taste, taste value, peak viscosity and break down increased and set back decreased with the application of Zn and Si fertilizers, particu-larly with the application of Zn plus Si fertilizers at the stage of growing the second leaf from top. Correlation analysis revealed that peak viscosity, break down and set back were closely correlated to amylose content, gel consistency, taste and taste values of cooking quality. Therefore, the application of Zn and Si fertilizers at different stages could improve the yield and quality of ja-ponica rice with good eating quality. In japonica rice with good eating quality, the highest yield could be obtained when Zn ferti-lizer applied at the stage of growing the fourth leaf from top, and the best cooking and eating quality could be achieved when Zn plus Si fertilizers applied at the stage of growing the second leaf from top.关键词
优良食味粳稻/施肥时期/锌硅肥/产量/品质Key words
Japonica rice with good taste quality/Times/Zn and Si fertilizer/Yield/Quality引用本文复制引用
王力,孙影,张洪程,魏海燕,朱大伟,朱盈,徐栋,霍中洋..不同时期施用锌硅肥对优良食味粳稻产量和品质的影响[J].作物学报,2017,43(6):885-898,14.基金项目
本研究由江苏省农业科技自主创新重点项目(CX[15]1002), 国家重点研发计划项目(2016YFD0300503, 2016YFD0200805), 江苏省重点研发计划项目(BE2016344, BE2015340, BE2016351)和江苏省三新工程项目(SXGC[2016]321)资助.This work was financed by the Agricultural Science and Technology Independent Innovation Key Programs of Jiangsu Province (CX[15]1002), the National Key Research and Development Programs (2016YFD0300503, 2016YFD0200805), the Key Research and De-velopment Programs of Jiangsu Province (BE2016344, BE2015340, BE2016351), and the Three New Agriculture Project of Jiangsu Province (SXGC[2016]321). （CX[15]1002）
