不同施肥措施对红壤丘陵茶园土壤酶活性及呼吸强度的影响

2006年在湖南湘丰茶业有限公司的有机肥长期定位试验茶园(施肥试验从2002年开始实施)开展了土壤酶活性和土壤呼吸强度的测定和分析,结果表明:连续5年的有机肥与无机肥的配施能明显提高土壤的呼吸强度,并显著增强脲酶和磷酸酶的活性;间种三叶草能明显增强过氧化氢酶活性;纯施有机肥也能增强脲酶、过氧化氢酶、磷酸酶和蔗糖酶活性;纯施用化肥和完成不施肥不利于土壤生物的活动,脲酶、过氧化氢酶、磷酸酶和蔗糖酶等活性和土壤呼吸强度都低于全部施有机肥、各有机无机肥配施处理和间种三叶草处理。

Impact of Fertilizers on Soil Enzyme Activity and Intensity of Breathing of Tea Plantation in Red-soil Hilly Region

Experimented the tea field to the Hunan krasnozem long-term localization the soil to carry on determination and the analysis the soil enzyme activity and the soil breath intensity,the result indicated that,organic fertilizer and inorganic fertilizer matches executes can enhance the soil obviously the breath intensity.Remarkable enhancement urease and phosphatase activeness.The interplanting clover can strengthen the catalase activeness obviously.Executes purely organic fertilizer also can strengthen the urease,the catalase,the phosphatase and the sucrose enzyme activity.But employs the chemical fertilizer not to favor the soil biology evolution,each kind of enzyme activity and the soil breath intensity all is not nearly very high.