以30 a(1979～2008)肥料长期定位试验为基础,分析探讨长期不同施肥方式对旱地黑垆土耕层(0～20 cm)土壤酶活性及其肥力的影响.结果表明:土壤脲酶活性M处理显著高于其他处理,MNP和SNP处理效果优于NP处理;土壤多酚氧化酶活性N和NP处理增加效果显著,M、MNP、SNP处理效果均不明显;土壤蛋白酶活性N处理效果最佳,显著高于其他处理;MNP、SNP处理能显著增加土壤有机质和全磷含量,有利于全氮含量的积累,表明有机-无机肥配施是旱地中低产田培肥土壤的有效措施.%By a 30-year (1979～2008) long-term located fertilizer experiment, effect of long-term different fertilization ways on soil enzyme activities and fertility in dryland black humus soil was analyzed. The results showed that, effect of M treatment generate on soil urease activity is obviously higher than other treatments, and the effect of MNP and SNP treatments generate surpass that of NP treatment; The effect of N and NP treatments generate increasing on soil polyphenoloxidase activity is remarkable, and effect of M, MNP and SNP treatments generate is not to be obvious. The effect of N treatment way on soil protein enzyme activity is very best, which obviously is higher than others; MNP and SNP treatments can obviously increase soil organic and total phosphorus contents, which is advantage to accumulate total nitrogen content, which indicated that organic-inorganic matches executes is a effective measure of the cultivating soil fertility in dryland of middle-low yielding.
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