基于群体生长及微气象因子对苏打盐碱稻区不同水稻产量层次差异解析  

Analysis of Different Rice Yield Levels in Saline-Sodic Area Based on Population Growth and Micrometeorological Factors

作　　者：刘丽新 姚天旭 张文韬 周一名 刘庆天 王鑫 翁文安 张博文 金峰[1] 邵玺文[1] LIU Lixin;YAO Tianxu;ZHANG Wentao;ZHOU Yiming;LIU Qingtian;WANG Xin;WENG Wen'an;ZHANG Bowen;JIN Feng;SHAO Xiwen(College of Agronomy,Jilin Agricultural University,Changchun 130118,China)

机构地区：[1]吉林农业大学农学院,长春130118

出　　处：《东北农业科学》2023年第2期6-12,共7页Journal of Northeast Agricultural Sciences

基　　金：国家重点研发计划项目(2016YFD0300104,2017YFD0300609);吉林省教育厅“十三五”科学技术重点项目(JJKH20200340KJ)。

摘　　要：探究松嫩平原苏打盐碱稻区不同水稻产量层次差异限制性因子,以提高该区水稻产量。以‘吉粳88’为试验材料,设置基础水平、当地农户水平、高产高效水平和超高产水平4种产量层次,基于群体生长和群体微气象因子解析产量层次差异的限制性因子。结果表明,群体生长率、群体净同化率、光合势、群体净光合速率低下,叶面积指数不足以及群体冠层内光照截获是苏打盐碱稻区农户水平产量不高的限制性因子。通过合理优化管理技术,构建合理群体结构,提高群体叶面积、改善光合物质生产能力、提升群体光能截获量是缩小松嫩平原苏打盐碱地稻区不同产量层次差异的关键技术措施之一。To explore the limiting factor among different rice yields level in saline-sodic area of the western Songnen Plain,and increase the yield of rice in the area.To increase the yield of rice in the area,four yield level were settled,including basal level,local farmer level,high yield and high efficiency level and super high yield level.Based on population growth and population micrometeorological factors,the limiting factors of yield hierarchy differences were analyzed.The results showed that low population growth rate,net assimilation rate,photosynthetic potential,low net photosynthetic rate,insufficient leaf area index and light interception in canopy were the limiting factors for low level yield of local farmer level in saline-sodic areas.It is one of the key technical measures to reduce the difference of different yield levels of saline-sodic paddy fields in Songnen Plain to optimize the management technology,construct a reasonable population structure,improve the leaf area of the population,improve the photosynthetic material production capacity and enhance the light interception of the population.

关 键 词：水稻 苏打盐碱胁迫 群体结构 微气象因子 

分 类 号：S511[农业科学—作物学]