...二硝基水杨酸反应，生成棕红色氨基化合物，在510nm有特征光吸收，在一定范围内510nm光吸收增加速率与S-SC活性成正比。土壤蔗糖酶(S-SC)测试盒自备用品：可见分光光度计、台式离心机、水浴锅、可调式移液器、1mL玻璃比色皿、研钵、冰、甲苯（不允许快递）和蒸馏水。
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随退化程度的加大，土壤蔗糖酶、脲酶、多酚氧化酶活性均降低。
With the increase of the greasing intensity, the activity of soil sucrose, unease and polyphone oxidize all decrease.
镧对土壤蔗糖酶活性表现出不同程度的刺激作用，最大刺激率达到1 5 %。
It stimulated the activity of soil sucrase to a varying degree, with the maximum stimulation ratio being 15%.
施用有机肥鱼腥草有利于提高土壤脲酶、蛋白酶、纤维素酶的活性，施用化肥有利于提高土壤蔗糖酶、磷酸酶活性的。
The application of organic fertilizers were contributed to increase the activities of urease, proteinase and cellulase in soil enzyme system.
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