硅肥对优质稻壮香优白金5稻米品质的影响  

Effect of Silicon Fertilizer on Grain Quality of High Quality Rice Zhuangxiangyou Baijin5

作　　者：程方伟 谢东婕 杨欣欣 徐安杰 宾士友 何礼健 郑浩 韦善清[1] 梁和[1] 袁鹏丽 江立庚[1,3] CHENG Fangwei;XIE Dongjie;YANG Xinxin;XU Anjie;BIN Shiyou;HE Lijian;ZHENG Hao;WEI Shanqing;LIANG He;YUAN Pengli;JIANG Ligeng;无(College of Agriculture,Guangxi University,Nanning,Guangxi 530004,China;Department of Agriculture and Rural Affairs of Gaungxi Zhuang Autonomous Region,Nanning,Guangxi 530021,China;Guangxi Key Laboratory of Agro-Environment and Agro-Products Safety,Nanning,Guangxi 530004,China)

机构地区：[1]广西大学农学院,广西南宁530004 [2]广西壮族自治区农业农村厅,广西南宁530021 [3]广西农业环境与农产品安全重点实验室,广西南宁530004

出　　处：《作物研究》2023年第2期129-134,共6页Crop Research

基　　金：广西壮族自治区农业农村厅项目(Z2019113)。

摘　　要：为探究不同硅肥及施用量对稻米品质的影响,2021年以广西主栽籼型三系杂交水稻品种壮香优白金5为供试材料,进行硅肥品种、硅肥施用量双因素裂区试验,硅肥施用量为主区,共4水平:Si0,0 kg/hm^(2)、Si1,90 kg/hm^(2)、Si2,180 kg/hm^(2)、Si3,270 kg/hm^(2),硅肥品种为副区,包括先益农(K1,SiO_(2)>25%)、国正硅(K2,SiO_(2)>29%)2个硅肥品种。结果表明,施用硅肥能显著改善壮香优白金5稻米的外观与食味品质,其垩白率、垩白度降低;蛋白质含量略微提升;直链淀粉含量下降,稻米RVA谱中峰值粘度、最低粘度、最终粘度、崩解值、消减值降低,糊化温度提高;对加工品质无显著影响。在低硅肥施用量下效果更优,壮香优白金5的适宜硅肥用量为90 kg/hm^(2)(国正硅)。In order to explore the effects of different silicon fertilizers and their application rates on grain quality,Zhuangxiangyou Baijin5,the main indica hybrid rice variety in Guangxi,was used as the test material in 2021,and the two-factor split-plot experiment was conducted.The main area of silicon fertilizer application rate was 4 levels:Si0,0 kg/hm^(2),Si1,90 kg/hm^(2),Si2,180 kg/hm^(2) and Si3,270 kg/hm^(2),the silicon fertilizer varieties were the secondary area,including two silicon fertilizer varieties:Xianyinong(K1,SiO_(2)>25%)and Guozhenggui(K2,SiO_(2)>29%).The results showed that the application of silicon fertilizer significantly improved the appearance and eating quality of Zhuangxiangyou Baijin5 grain,and its chalkiness rate and chalkiness degree decreased.The content of protein increased slightly;with the decrease of amylose content,the peak viscosity,trough viscosity,final viscosity,breakdown viscosity and setback viscosity in RVA spectrum of grain decreased,and the pasting temperature increased,but no significant influence on the processing quality.The effect was better when the amount of silicon fertilizer was low,and the suitable amount of silicon fertilizer for Zhuangxiangyou Baijin5 was 90 kg/hm^(2)(Guozhenggui).

关 键 词：水稻 硅肥 稻米品质 壮香优白金5 

分 类 号：S511.062[农业科学—作物学]