XIE Yuan-yuan,GU Jie,GAO Hua,et al.Dynamic Changes of Soil Enzyme Activities in Microorganism Inoculants, Enzymes and Chemical Fertilizers in Different Proportions after Straw Returning Soil[J].Research of Soil and Water Conservation,2010,17(02):233-238.
微生物菌剂酶制剂化肥不同配比对秸秆还田后土壤酶活性的影响
- Title:
- Dynamic Changes of Soil Enzyme Activities in Microorganism Inoculants, Enzymes and Chemical Fertilizers in Different Proportions after Straw Returning Soil
- 分类号:
- S154.2;S141.4
- 摘要:
- 为研究微生物菌剂、酶制剂、化肥不同配比对秸秆还田后土壤酶活性的影响，在陕西眉县横渠镇农场进行了田间试验，测定和分析了土壤酶活性以及土壤养分因子。结果表明：在玉米灌浆期，土壤蔗糖酶和碱性磷酸酶活性均出现峰值，分别为58.30 mg、3.85 mg，是播种前CK处理的4.7倍、1.5倍；在玉米成熟期，土壤脲酶和多酚氧化酶活性均呈现峰值，分别为4.85 mg、1.46 mg，是播种前CK处理的3.2倍、8.1倍。微生物菌剂、酶制剂与化肥配施可明显的提高土壤中蔗糖酶、脲酶、碱性磷酸酶、多酚氧化酶活性，其中秸秆还田+常规施肥+增施氮肥+酶制剂+腐解菌剂（SFN+E+D）处理效果尤为显著。除多酚氧化酶外，土壤蔗糖酶、脲酶和碱性磷酸酶活性之间呈极显著正相关；除速效钾外，土壤脲酶、碱性磷酸酶活性与土壤各养分因子均呈显著或极显著相关，蔗糖酶与速效钾呈显著负相关，多酚氧化酶活性与各养分因子相关性均不显著。
- Abstract:
- The dynamic changes of soil enzyme activities, the relationship of soil enzyme activities with the contents of soil nutrients were investigated based on the experiment of microorganism inoculants, enzymes and chemical fertilizers in different proportions after straw returning soil in Hengqu county, Shaanxi province, China. The results showed that invertase and alkaline phosphatase had peaks of concentrations at filling stage and it was 58.30 mg, 3.85 mg respectively. It was 4.7 times and 1.5 times before sowing of CK respectively. Urease and polyphenol oxidase peaked at mature stage and it was 4.85 mg, 1.46 mg respectively. It was 3.2 times and 8.1 times before sowing of CK respectively. Microorganism inoculants, enzymes and chemical fertilizers in different proportions in straw returning soil could significantly increase the soil invertase, urease, alkaline phosphatase and polyphenol oxidase activities. The application of SFN+E+D fertilizers was more effective than others to increase soil enzyme activities. The significantly positive correlations were found between the activities of invertase, urease and alkaline phosphatase except polyphenol oxidase. Urease and alkaline phosphatase activities were correlated with soil nutrient contents except availble K while polyphenol oxidase varied un-remarkably. Invertase activities were reversely correlated with available K.
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备注/Memo
收稿日期:2009-10-10。
基金项目:国家自然科学基金（40771109，40871119）；科技部农转资金（2007GB2G000394）；国家科技支撑计划（2007BAD89B16，2006BAD17B01-01）
作者简介:解媛媛（1982- ），女，山东临沂人，硕士研究生，主要研究方向废弃物资源化利用。E-mil：littledm@163.com
通讯作者:高华（1956- ），男，陕西咸阳人，高级农艺师，主要从事农业废弃物资源化利用研究。E-mail：gaohua929@