不同氮肥梯度处理水稻茎蘖数及株高变化规律  

The changes of stem number and plant height of rice treated with different nitrogen fertilizer levels

作　　者：赵丽君 黄影华 张善炫 郭之瑶 洪瑞霞 王轶林 夏丽莎 李艳大[2] 陈青春 ZHAO Li-jun;HUANG Ying-hua;ZHANG Shan-xuan;GUO Zhi-yao;HONG Rui-xia;WANG Yi-lin;XIA Li-sha;LI Yan-da;CHEN Qing-chun(College of Agriculture&Biology,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China;Institute of Agricultural Engineering,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China)

机构地区：[1]仲恺农业工程学院农业与生物学院,广州510225 [2]江西省农业科学院农业工程研究所,南昌330200

出　　处：《湖北农业科学》2020年第12期13-16,共4页Hubei Agricultural Sciences

基　　金：国家重点研发计划(2016YFD0300608,2018YFD020030610)。

摘　　要：为明确不同水稻(Oryza sativa L.)品种不同氮肥梯度与茎蘖数以及株高的变化规律,设置不同氮肥梯度早造和晚造随机区组试验。结果表明,不同氮肥梯度下,合美占、粤农丝苗2个品种在早、晚造结果上总体表现一致,随施氮量的增加,茎蘖数、株高增加;分蘖期、拔节期早、晚造施氮量与茎蘖数呈极显著正相关关系,孕穗期、黄熟期呈显著或极显著正相关;早造、晚造施氮量与自然株高、生理株高在分蘖期、孕穗期呈显著或极显著正相关,拔节期、黄熟期呈极显著正相关。In order to clarify the variation of different nitrogen fertilizer levels,stem number and plant height of different rice(Oryza sativa L.)varieties,a randomized block experiment of different nitrogen fertilizer levels and early construction was set up.The results showed that under the different nitrogen fertilizer levels,the results of the two varieties of Hemeizhan and Yuenongsimiao were consistent for the early cropping and late cropping.The results showed that the number of stems and plant height increased with the increase of nitrogen application rate.In the tillering stage and the jointing stage,there was a extremely significant positive correlation between early cropping and late cropping nitrogen application rate and stem number,and a significant positive correlation or extremely positive correlation between booting stage and yellow maturity stage.Early cropping and late cropping nitrogen application and natural plant height,physiological strain there was a significant positive correlation or extremely positive correlation between the tillering and the booting stages and a extremely significant positive correlation between the jointing stage and the yellow maturity.

关 键 词：水稻(Oryza sativa L.) 氮肥 茎蘖数 株高 相关关系 

分 类 号：S511[农业科学—作物学]