复合菌肥缓解污灌对玉米土壤酶的影响
关键词：复合菌肥；土壤酶；污灌；酶活性
Effects of Combined Bacterial Manure on Soil Enzyme Activities in the Soil of Sewage Irrigation Corn
Abstract: The different concentrations of synthetic wastewater and combined bacterial manure were used to irrigate the potted corn. Effects of combined bacterial manure on soil enzyme activities in the soil of sewage irrigation corn were studied. The results showed that the enzyme activities of invertase, amylase, protease, urease, catalase presented the law of first increasing and then decreasing along with the sewage concentration increasing.The enzyme activities of invertase and amylase were the highest, 0.37mg glucose/g soil, 0.07mg glucose maltose/g soil respectively at concentration of sewage of 50%. The enzyme activities of urease and protease were the highest, 1.43mg amino nitrogen/g soil, 0.21mgNH3-N/g soil respectively at concentration of sewage of 25%. The enzyme activities of catalase were the highest, 0.65mL (0.1mol/LKMnO4) /(h•g) at concentration of sewage of 75%. Soil protease activity changed irregularly, and soil invertase, amylase, urease,catalase activities presented the law of increasing after irrigating the different concentrations of photosynthetic bacteria. Soil invertase, amylase, urease activities presented the law of increasing along with the concentration of photosynthetic bacteria increasing, but soil catalase changed irregularly.
Key words: Multiple bacteria fertilizer; Soil enzymes; Sewage irrigation; Enzymatic activity
目 录
摘 要 1
Abstract.1
引言 2
1 材料与方法 2
1.1 材料 2
1.2 试验设置与处理 3
1.3 仪器和设备 3
1.4 土壤酶活性测定 3
1.4.1 土壤蔗糖酶活性的测定 4
1.4.2 土壤淀粉酶活性的测定 4
1.4.3 土壤脲酶活性的测定 5
1.4.4 土壤蛋白酶活性的测定 6
1.4.5 土壤过氧化氢酶活性的测定 7
1.5 数据处理 7
2 结果与分析 8
2.1 污水灌溉和复合菌肥对土壤蔗糖酶活性的影响 8
2.1.1 土壤蔗糖酶标准曲线 8
2.1.2 不同浓度的污水灌溉和不同浓度的复合菌肥对土壤蔗糖酶活性的影响 8
2.2 污水灌溉和复合菌肥对土壤淀粉酶活性的影响 9
2.2.1 土壤淀粉酶标准曲线 9
2.2.2 不同浓度的污水灌溉和不同浓度的复合菌肥对土壤淀粉酶活性的影响 9
2.3 污水灌溉和复合菌肥对土壤脲酶活性的影响 10
2.3.1 土壤脲酶标准曲线 10
2.3.2 不同浓度的污水灌溉和不同浓度的复合菌肥对土壤脲酶活性的影响 10
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