磁处理土壤对油菜幼苗生理生化指标的影响  

Effects of magnetized soil on physiological and biochemical indexes of Brassica napus seedlings

作　　者：顾继光[1] 周启星[1] 

机构地区：[1]中国科学院沈阳应用生态研究所陆地生态过程重点实验室,沈阳110016

出　　处：《应用生态学报》2003年第5期794-796,共3页Chinese Journal of Applied Ecology

基　　金：国家重点基础研究发展规划项目 (G19990 1180 8);中国科学院知识创新重要方向项目资助 (KZCX2 SW 416)

摘　　要：用室外盆栽方法 ,将土壤磁效应与生物磁效应相结合 ,研究磁处理土壤对油菜 (Brassicanapus)幼苗硝酸还原酶活性、可溶性糖含量、根系活力以及生物量的影响 .结果表明 ,2 0 0mT磁处理土壤可提高油菜幼苗硝酸还原酶活性 10 .76 % ,30 0mT和 10 0mT处理均使可溶性糖含量增加 11.0 5 %以上 ,根系活力增加 2 6 .4 0 % .生物量增加 ,地上部鲜重以 30 0mT处理最大 ,比对照增加 13.2 8% ,地下部的鲜重以 2 0 0mT处理最大 ,比对照增加 13.17% ,根冠比降低 10 .0 0 % ,说明土壤健康质量得到了改善 .Nitrate reductase, peroxidase, water soluble sugars, root vitality and total biomass of Brassica napus seedlings were investigated with soil after magnetization treatment. The results showed that nitrate reductase activity was increased by 10.76% after 200 mT treatment.The contents of water soluble sugars were increased by 11.05% and root vitality by 26.40 % for 300 and 100 mT treatments, respectively. Total biomass also showed a trend of increase as the magnetization increased. The highest biomass of the above ground parts was achieved at 300mT, which was 13.28% higher than that of control. In addition, total biomass of below ground parts was the highest at 200mT, which was 13.17% higher than that of control,and the ratio of below ground to above ground parts decreased by 10.00%, suggesting that the overall environmental quality of the soil was improved significantly.

关 键 词：磁化土壤 油菜 生理生化指标 土壤健康质量 

分 类 号：S565.4[农业科学—作物学]