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[目的]探讨粪肥与化肥配施对紫色土养分及酶活性释放动态的影响。[方法]采用模拟培养方法研究了粪肥与化肥配施对土壤活性有机质、铵态氮、硝态氮含量及酶活性释放动态的影响。[结果]土壤中活性有机质、铵态氮、硝态氮含量及土壤酶活性均呈动态变化,粪肥与化肥配施处理一般表现为倒“S”型,出现2个或多个峰值,且峰值出现较化肥处理略为滞后,峰尖较平缓,而化肥处理多为单峰,峰值最高。各处理活性有机质含量在培养10d左右出现峰值,高低顺序为牛5肥5>猪5肥5>牛粪>猪粪>化肥Ⅰ>化肥Ⅱ;脲酶活性均在培养10d左右出现高峰,高低顺序为猪粪>牛5肥5>牛粪>化肥Ⅰ>化肥Ⅱ>猪5肥5;蔗糖酶活性高低顺序为猪5肥5>猪粪>牛5肥5>牛粪>CK>化肥Ⅱ>化肥Ⅰ。[结论]为粪肥与化肥的合理配施提供了理论依据。
[Objective] The research aimed to discuss the effect of manure and chemical fertilizer on the release of nutrient and enzyme activity in purple soil. [Method] The effects of manure and chemical fertilizer on the release of soil active organic matter, ammonium nitrogen, nitrate nitrogen and the release of enzyme activity were studied by simulated culture method. [Result] The contents of soil active organic matter, ammonium nitrogen, nitrate nitrogen and soil enzyme activities all showed dynamic changes. The manure and chemical fertilizer treatments generally showed “S” type with two or more peaks, The peak appears slightly laggard than the chemical fertilizer treatment, the peak is more gentle, and fertilizer treatment mostly single peak, the highest peak. The content of active organic matter in each treatment peaked at about 10 days of culture, and the order of the five treatments was that of cattle 5 manure 5> pig 5 manure 5> cow manure> pig manure> chemical fertilizer 1> chemical fertilizer II; the urease activity peaked about 10 days after cultivation, Pig manure> Cattle manure 5> Cattle manure> Chemical fertilizer I> Chemical fertilizer II> Pig manure 5; The order of sucrase activity was pig 5 manure 5> pig manure> cow 5 manure 5> cow manure> CK> chemical fertilizer II> chemical fertilizer Ⅰ. [Conclusion] This provided the theoretical basis for the rational allocation of manure and chemical fertilizer.