摘要
磁场对脲酶活性影响的试验结果表明：磁场处理２０ｍｉｎ磁效应最大，且场强２０５ｍＴ时产生最大正效应，比ＣＫ提高３０．４％；场强８００ｍＴ时负效应最大，比ＣＫ降低１９．５％。磁场处理４００ｍｇ／Ｌ的脲酶溶液，２０５ｍＴ时磁效应最大，比ＣＫ提高３２．５％；处理８００ｍｇ／Ｌ的溶液，１７０ｍＴ时磁效应最大，比ＣＫ提高２６．５％。同一场强下，４０℃较３０℃和６０℃脲酶活性提高的幅度要少的多。磁场处理脲酶溶液比处理酶粉和溶剂效果明显，１００ｍＴ处理比ＣＫ提高８．１％，２０５ｍＴ比ＣＫ提高２９．８％。
Experiment results of the effects of magnetic field on urease
activity showed as follows:The efficiency of the magnetic treatment of 20 minutes was the
biggest.205 mT producing the most positive efficiency made urease activity improved 30.4%
than CK.800 mT producing the most negative efficiency made the activity decreased 19.5%
than CK.The efficiency of 205 mT on 400 mg/L urease solution increased 32.5% than CK.170 mT
on 800 mg/L increased 26.5%.The magnetic efficiency of 40 was very littler than that of 30 and
60 in the same of magmetic field.The efficiency of magnetic on urease solution was more
effective than that of urease powder and solvent.100 mT and 205 mT increased 8.1% and 29.8%
than CK respectively.
出处
《西北农业学报》
CAS
CSCD
1999年第2期94-96,共3页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家教委博士点基金
关键词
土壤
脲酶
活性
磁效应
Urease
Urease activity
Magnetic efficiency
