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不同压力下，磁场对土微生物和酶活性影响的试验结果表明：１．０×１０６～１．５×１０６Ｐａ、３０ｍＴ处理可增加耕作层细菌数量；５×１０５～１．０×１０６Ｐａ下，１５ｍＴ和３０ｍＴ均增加粘化层细菌数量，且７×１０５Ｐａ时３０ｍＴ的菌数比１５ｍＴ多３×１０７个／ｇ土；４×１０５～１．５×１０６Ｐａ下，１５ｍＴ和３０ｍＴ均使粘化层真菌数量增加，７×１０５～１．５×１０６Ｐａ时，３０ｍＴ比１５ｍＴ磁效应大，１．５×１０６Ｐａ时其菌数比１５ｍＴ多２．８×１０３个／ｇ土。１．０×１０５～６×１０５Ｐａ、１５ｍＴ处理耕作层，其脲酶和转化酶活性升高，３×１０５Ｐａ时，１５ｍＴ处理的脲酶和转化酶活性比３０ｍＴ分别提高２４．３％和２３．４％；１５ｍＴ和３０ｍＴ处理下，粘化层脲酶活性下降，转化酶活性升高。磁场作用下，粘化层酶活性的变幅较耕作层的大
Under different pressures, the effect of magnetic field on the soil microbes and enzyme activity showed that: 1.0 × 106 ~ 1.5 × 106Pa, 30mT treatment can increase the number of tillage bacteria; 5 × 105 ~ 1.0 × 106Pa, 15mT and 30mT increased the number of bacteria in the adhesive layer, and the number of bacteria in 30mT was 30mT and 3 × 107g / g more than that of 15mT in 7 × 105Pa, and 15mT and 30mT in 4 × 105 ~ 1.5x106Pa, The number of fungi increased. At 7 × 105 ~ 1.5 × 106Pa, 30mT had a larger magnetic effect than 15mT. When the number of fungi was 1.5 × 106Pa, the number of fungi was 2.8 × 103 / g more than that of 15mT. 1.0 × 105 ~ 6 × 105Pa, 15mT treatment of tillage layer, the urease and invertase activity increased, 3 × 105Pa, 15mT urease and invertase activity than the 30mT increased by 24.3% and 23.4% Under 15mT and 30mT treatments, the urease activity of the viscosifying layer decreased and the invertase activity increased. Under the action of magnetic field, the variation of enzyme activity of viscosifying layer is larger than that of tillage layer