Root and Crown Trait of Alfalfa in Kerqin Sandy Land

doi:10.11733/j.issn.1007-0435.2001.04.006

›› 2001, Vol. 9 ›› Issue (4): 269-276.DOI: 10.11733/j.issn.1007-0435.2001.04.006

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Root and Crown Trait of Alfalfa in Kerqin Sandy Land

SUN Qi-zhong¹, HAN Jian-guo², GUI Rong¹, LIU Guo-rong³

1. Grassland Research Institute, Chinese Academy of Agricultural Science, Hohhot Inner Mongolia 010010, China;
2. Grassland Research Institute, China Agricultural University, Beijing 100094, China;
3. Grassland Station of Chifeng city, Chifeng 204000 China

Received:2000-09-27 Revised:2001-03-01 Online:2001-11-15 Published:2001-11-15

科尔沁沙地苜蓿根系和根颈特性

孙启忠¹, 韩建国², 桂荣¹, 刘国荣³

1. 中国农业科学院草原研究所, 内蒙古呼和浩特, 010010;
2. 中国农业大学草地研究所, 北京, 100094;
3. 赤峰市草原站, 赤峰, 024000

作者简介:孙启忠(1959- ),男,副研究员,在读博士生,主要从事牧草生产及草地改良方面的研究,发表论文十余篇
基金资助:
“九五”国家科技攻关96-016-01-04专题内容

Abstract

Abstract: There was different relationship root weight,root depth and cultivars,seeding time and plowing depth in alfalfa (Medicago sativa L.).Crown width and number of crown stems were affected by seeding time and plant ages.

Key words: Alfalfa, Root, Crown

摘要： 播种当年,苜蓿根重和根深因品种、播种期和耕深的不同而变化明显。结果表明,草原2号苜蓿总根量较高,入土较深,而敖汉苜蓿则较低较浅。播期越早根量越高,根系也越深,反之则较差。深耕能促进苜蓿根系的生长发育,增加根量和根深。播期越早根颈越粗,根重越高,分枝也越多,而晚播则下降。随着苜蓿生长年限的增加,根颈随之增粗,但根颈分枝数则以5年生苜蓿居多,尔后呈下降趋势。

关键词: 苜蓿, 根系, 根颈

CLC Number:

S541.9

SUN Qi-zhong, HAN Jian-guo, GUI Rong, LIU Guo-rong. Root and Crown Trait of Alfalfa in Kerqin Sandy Land[J]. , 2001, 9(4): 269-276.

孙启忠, 韩建国, 桂荣, 刘国荣. 科尔沁沙地苜蓿根系和根颈特性[J]. , 2001, 9(4): 269-276.

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Root and Crown Trait of Alfalfa in Kerqin Sandy Land

科尔沁沙地苜蓿根系和根颈特性

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