豫南地区施氮量对优质食味粳稻品种南粳9108产量及品质的影响  

Effects of Nitrogen Application on Yield and Quality of High Eating Quality Japonica Rice Varieties Nanjing9108 in Southern Henan

作　　者：刘秋员 马中涛 宋晓华 彭波[3] 段斌 何世界 李慧龙 宋世枝 LIU Qiuyuan;MA Zhongtao;SONG Xiaohua;PENG Bo;DUAN Bin;HE Shijie;LI Huilong;SONG Shizhi(Agricultural College,Xinyang Agriculture and Forestry University,Xinyang 464000,China;Xinyang Academy of Agricultural Sciences,Xinyang 464000,China;College of Life Sciences,Xinyang Normal University,Xinyang 464000,China)

机构地区：[1]信阳农林学院农学院,河南信阳464000 [2]信阳市农业科学院,河南信阳464000 [3]信阳师范学院生命科学学院,河南信阳464000

出　　处：《信阳师范学院学报（自然科学版）》2020年第2期220-225,共6页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(U1604110);河南省科技攻关计划项目(172102110155);河南省重大科技专项项目(121100110200);大别山生物资源保护与利用学科群建设(306-30001)。

摘　　要：设置了0、120、240、360 kg/hm^24个施氮水平,研究不同施氮水平对优质食味粳稻品种南粳9108产量和品质的影响.试验结果表明:随氮肥用量增加,产量呈增加趋势,在施氮量为240 kg/hm^2时,产量最高,达到9868.20 kg/hm^2.随着氮肥用量的增加,稻米品质评价指标中的糙米率、精米率、整精米率、垩白大小、垩白度、蛋白质含量、胶稠度、峰值黏度、崩解值呈增加趋势;而垩白粒率、直链淀粉含量、热浆黏度、最终黏度、消减值、回复值、糊化温度则表现出降低的趋势.食味方面,外观、黏度、平衡度以及食味得分均是随着氮肥用量的增加呈下降趋势,只有硬度呈上升趋势.综合考虑不同施氮水平下的产量和品质表现,把施氮水平控制在240 kg/hm^2左右时有利于优质食味粳稻品质南粳9108在豫南地区实现优质高产.In order to determine the suitable nitrogen application of high eating quality japonica rice varieties Nanjing9108 in southern Henan province,the effects of different nitrogen application(0,120,240,360 kg/hm^2)on yield and quality of Nanjing9108 were studied.The results showed that the yield increased with the increase of nitrogen application,the highest yield was 9868.20 kg/hm^2 at the nitrogen application rate of 240 kg/hm^2.The brown rice rate,milled rice rate,head rice rate,chalkiness size,chalkiness,protein content,gel consistency,peak viscosity and disintegration value of rice quality evaluation indicators increased with the increase of nitrogen application;the chalky grain rate,amylose content,hot paste viscosity,final viscosity,reduction value,recovery value and gelatinization temperature showed a decreasing trend.In terms of eating quality,appearance,viscosity,balance degree and taste score all showed a downward trend with the increase of nitrogen application,the only hardness is on the rise.Considering the yield and quality performance under different nitrogen application,controlling the nitrogen application level in about 240 kg/hm^2 was conducive to the realization of high yield and quality of Nanjing9108 in southern Henan.

关 键 词：粳稻 食味品质 南粳9108 氮肥 

分 类 号：S511[农业科学—作物学]