The urase activity of soil under different years of continuous cropping and growth stages .

不同连作年限和生育时期土壤脲酶活性。

The result showed that organo-inorgano-mixed fertilizer could increase the quantity of availability , strengthen the activity of proteinase , sucrase , urase and peroxidase in the sugarcane roots , and increase the sugarcane yield and sugar content .

结果表明，有机无机肥料配施，可提高土壤有效养分的含量，激活土壤蔗糖酶、脲酶、蛋白酶、过氧化物酶的活性，促进甘蔗生长与蔗糖分的累积，对甘蔗增产增糖有积极的作用。

Change of enzyme activities ( urase , alkali phosphatase , hydrogen peroxidse ) in the soil were measured periodically to probe the effect of fertilizing patterns on the enzyme activities , so that to provide the scientific basis for the improvement of fertilizing to the salty soil .

通过定期监测土壤中酶活性（脲酶、碱性磷酸酶和过氧化氢酶）的变化，探讨不同施肥模式对土壤中酶活性（脲酶、碱性磷酸酶和过氧化氢酶）的影响，为盐渍土的培肥改良提供科学依据。