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Position: Home > Articles > Effects of Selenium and Cobalt Combined with Base Fertilizers on Drought Resistance of Alfalfa Chinese Journal of Grassland 2009,31 (4) 41-46

硒、钴配施基肥对紫花苜蓿抗旱性的影响

作  者:
郭孝;介晓磊;姚文超;胡华锋;李建平;李秋玲
单  位:
河南省新密市农业局;郑州牧业工程高等专科学校;河南农业大学资源与环境学院
关键词:
硒;钴;紫花苜蓿;抗旱性;影响
摘  要:
通过播前基施硒钴微肥,研究硒钴配施对紫花苜蓿叶片内游离脯氨酸、K含量、叶绿素含量以及氮代谢等生理功能的调节作用。结果表明:硒钴用量分别为765g/hm2和1548g/hm2不但能有效地促进苜蓿叶片内游离脯氨酸的积累和硝酸还原酶(NR)活性的提高,增强苜蓿体内氮代谢的水平,而且能提高现蕾期到开花期苜蓿叶片中叶绿素含量。硒钴用量分别为570g/hm2和1548g/hm2能有效地提高苜蓿叶片中K的积累量。
译  名:
Effects of Selenium and Cobalt Combined with Base Fertilizers on Drought Resistance of Alfalfa
作  者:
GUO Xiao1,2,JIE Xiao-lei1,2,YAO Wen-chao3,HU Hua-feng2,LI Jian-ping2,LI Qiu-ling3(1.Resources and Environment Institute of Henan Agricultural University,Zhengzhou 450002,China;2.Zhengzhou College of Animal Husbandry Engineering,Zhengzhou 450011,China;3.Agriculture Bureau of Xinmi City of Henan Province,Zhengzhou 452370,China)
关键词:
Selenium;Cobalt;Alfalfa;Drought resistance;Effect
摘  要:
A field experiment was conducted to study effects of selenium and cobalt combined with base fertilizers on some physiological functions of alfalfa(Medicago sativa L.),such as free proline and potassium accumulations,chlorophyll contents in alfalfa leaves and nitrogen metabolism.Results showed that applying 765g/hm2 selenium and 1548g/hm2 cobalt combined with base fertilizers could not only enforce nitrate reductase activities and nitrogen metabolite levels,but also increase chlorophyll content in leaves from ramification to flowering stages effectively.Applying 570g/hm2 selenium and 1548g/hm2 cobalt combined with base fertilizers could increase potassium accumulations.

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