首页 | 本学科首页   官方微博 | 高级检索  
     检索      

锌肥对旱稻苗期锌吸收分配和干物质积累的影响
引用本文:金灵娜,姜雯,赵明,樊堂群,郭文善.锌肥对旱稻苗期锌吸收分配和干物质积累的影响[J].中国土壤与肥料,2006(3):40-43.
作者姓名:金灵娜  姜雯  赵明  樊堂群  郭文善
作者单位:1. 扬州大学农学院,江苏,225009
2. 莱阳农学院农学系,山东,265200
3. 中国农业科学院作物科学研究所,北京,100081
4. 山东省花生所,青岛,266100
摘    要:为了探明旱稻锌吸收分配的规律,本试验通过对两个早稻供试品种(旱稻502和巴两陆稻)进行不同供锌水平(0.0、0.1、0.5、2.5、5.0、10.0mg/kg)处理的盆栽试验,研究了锌肥供给水平对旱稻锌吸收分配和千物质积累的影响。结果表明:在适宜锌用量范围内,随着施锌量的增加,供试品种地上部于物重均呈增加趋势。其中在Zn 5.0mg/kg水平下,早稻502和巴西陆稻地上部生物量达到最大值。但过多锌肥对旱稻生长有抑制作用。在外界锌源充足条件下,早稻对锌的吸收积累表现为奢侈吸收,多余的锌分配主要贮存在叶鞘中。从总体上看,根和叶鞘中的锌含量明显比叶片中的高,并且随着锌肥供给水平的增加,根和叶鞘中的锌含量上升显著,而叶片锌含量则增加相对缓慢。

关 键 词:旱稻  锌吸收  分配
文章编号:1673-6257(2006)03-0040-04
收稿时间:2005-04-14
修稿时间:2005-04-14

Effects of Zn on plant growth and Zn distribution at seedling stage in aerobic rice
JIN Ling-n,JIANG Wen,ZHAO Ming,FAN Tang-qun,GUO Wen-shan.Effects of Zn on plant growth and Zn distribution at seedling stage in aerobic rice[J].Soil and Fertilizer Sciences in China,2006(3):40-43.
Authors:JIN Ling-n  JIANG Wen  ZHAO Ming  FAN Tang-qun  GUO Wen-shan
Institution:1. Yangzhou University, Jiangsu 225009; 2. Laiyang Agricultural College, Shandong 265200; 3. Institute of Crop Science Chinese Academy of Agricultural Sciences, Beijing 100081 ; 4. Institute of Penut Research of Shandong, Qingdao 266100
Abstract:In this research, the effects of Zn application on plant growth and Zn distribution were examined in two cult vats of aerobic flee under pot soil culture condition with six zinc supplied level. Both Zn deficiency and Zn toxicity affected plant growth, and reached the highest value at 5.0 mg/kg soil for both varieties. Excessive Zn application rates led to a dry matter decrease of 24.6% in Baxi Ludao. With increasing soil Zn supplied level, plants continued to take up Zn even beyond toxicity level, and the extra zinc was found to mainly store in sheath. Among .all individual plant organ, leaf zinc mass fraction was lowest, and keep relatively stable with zinc applied increased, instead of sharply rising like root and sheath.
Keywords:aerobic rice  zinc uptake and distribution  Zn mass fraction
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《中国土壤与肥料》浏览原始摘要信息
点击此处可从《中国土壤与肥料》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号