不同施氮量对新稻36号产量及碾米品质的影响  

Effects of Different Nitrogen Application Rates on Yield and Milling Quality of Xindao-36

作　　者：文孝荣[1] 康民泰 唐福森[1] 杜孝敬 赵志强[2] 袁杰[2] 张燕红[2] 王奉斌[1] WEN Xiao-rong;KANG Min-tai;TANG Fu-sen;DU Xiao-jing;ZHAO Zhi-qiang;YUAN Jie;ZHANG Yan-hong;WANG Feng-bin(Wensu Rice Experimental Station,Xinjiang Academy of Agricultural Sciences/Northwest Center of National Saline-Tolerant Rice Technology Innovation Center,Aksu Xinjiang 843100,China;Institute of Nuclear Technology and Biotechnology,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China)

机构地区：[1]新疆农业科学院温宿水稻试验站/国家耐盐碱水稻技术创新中心西北中心,新疆阿克苏843100 [2]新疆农业科学院核技术生物技术研究所,乌鲁木齐830091

出　　处：《北方水稻》2024年第3期11-14,共4页North Rice

基　　金：自治区重点研发计划项目“新疆主要粮食作物绿色丰产提质增效技术研究与集成示范”子课题“水稻绿色丰产提质增效技术优化集成及应用”,项目编号2021B02002-3;国家水稻产业技术体系乌鲁木齐综合试验站(CARS-01-85)。

摘　　要：以水稻品种新稻36号为试验材料,667 m^(2)分别施纯氮0 kg、9 kg、12 kg、15 kg、18 kg、21 kg、24 kg共七个处理,研究不同施氮量对水稻产量及碾米品质的影响。结果表明:施氮量增加会延长水稻苗期,推迟抽穗期与成熟期;有效收获穗、平均穗长、穗实粒数、株高、千粒重、产量、糙米率以及整精米率等均表现出随着施氮量的增加呈现先增加后减少的变化趋势,其中在667 m^(2)施纯氮18 kg时,分蘖率最高,有效收获穗最多,株高、产量和精米率最高;在667 m^(2)施纯氮15 kg时,平均穗长最长、平均穗总粒数和穗实粒数最多、千粒重最大、糙米率最高。综合比较各项指标,建议该品种在种植过程中667 m^(2)施纯氮15~18 kg,产量提高的同时兼顾较优的碾米品质。The rice variety Xindao-36 was used as the experimental material,667 m^(2) was treated with pure nitrogen of 0 kg,9 kg,12 kg,15 kg,18 kg,21 kg and 24 kg,respectively,to study the effects of different nitrogen application rates on rice yield and rice milling quality.The results showed that the increase of nitrogen application could prolong the seedling stage,delay the heading stage and maturity stage of rice.Effective harvest spike,average spike length,grain number per spike,plant height,1000-grain weight,yield,brown rice rate and milled rice rate all showed a trend of first increasing and then decreasing with the increase of nitrogen application.When pure nitrogen was applied to 667 m^(2) with 18 kg,tillering rate was the highest,effective harvest spike was the most,plant height,yield and milled rice rate were the highest.When 667 m^(2) was applied with 15 kg of pure nitrogen,the average spike length was the longest,the average total grain number and grain number per spike were the highest,the 1000-grain weight was the largest,and the brown rice rate was the highest.According to the comprehensive comparison of various indexes,it is suggested that the variety should apply 15-18 kg of pure nitrogen in the 667 m^(2) planting process,which can improve the yield while taking into account the better quality of rice milling.

关 键 词：水稻 施氮量 产量 碾米品质 

分 类 号：S511.062[农业科学—作物学]