MA Xing-zhu,ZHOU Bao-ku,HAO Xiao-yu.Study of Black Soil Enzyme Activity in Soybean Field Under Long-Term Different Fertilizations[J].Soybean Science,2016,35(01):96-99.[doi:10.11861/j.issn.1000-9841.2016.01.0096]
长期不同施肥条件下大豆田黑土酶活性研究
- Title:
- Study of Black Soil Enzyme Activity in Soybean Field Under Long-Term Different Fertilizations
- Keywords:
- Black soil; Longterm fertilization; Soil enzyme; Soil nutrient
- 文献标志码:
- A
- 摘要:
- 以农业部黑龙江耕地保育与农业环境科学观测实验站(始建于1979年)为研究平台,选取4个典型施肥处理(不施肥处理、有机肥处理、单施化肥、有机-化肥配合处理)为供试土样,于2011年大豆收获后采集土壤样品,研究长期不同施肥处理对黑土主要酶类(葡糖苷酶、脲酶和磷酸单酯酶)活性的影响。结果表明:长期不施肥处理大豆田土壤酶活性较低,施肥处理可以增加黑土酶活性,脲酶与磷酸单酯酶对施肥响应程度大于β-葡糖苷酶;单施有机肥处理与化肥处理对土壤酶活性影响程度之间差异不显著,而有机肥配施化肥处理则能够显著增强黑土β-葡糖苷酶、脲酶和磷酸单酯酶活性。同时,土壤β-葡糖苷酶、脲酶和磷酸单酯酶活性与土壤有机碳、全氮、全磷以及速效磷含量之间具有极显著的正相关关系,与土壤pH之间具有极显著的负相关关系。长期有机肥配施化肥处理可以显著增强大豆田土壤酶活性,土壤酶活性与土壤主要养分含量之间关系密切。
- Abstract:
- Based on scientific observation station of arable land conservation and agriculture environment of Heilongjiang, Ministry of Agriculture (built in 1979), selected four typical fertilization treatments (no fertilizer, organic fertilizer, chemical fertilizer and organic fertilizer combined with chemical fertilizer),collected soil sample after soybean harvest in 2011 to study effect of long-term different fertilizations on main kinds of enzymes activities (βglucosidase, urease and phosphatase) of black soil. The results showed that the no fertilizer treatment had lower enzyme activities, fertilization treatment could increase black soil enzyme activities, urease and phosphatase had bigger response degree than βglucosidase; there was no significant difference between effects of organic fertilizer and chemical fertilizer on soil enzyme activities; however, treatment of organic fertilizer combined with chemical fertilizer could increase soil βglucosidase, urease and phosphatase activities significantly Meanwhile, there were significant and positive correlationships among soil enzyme activities and contents of soil organic, soil total nitrogen, soil total phosphate and soil available phosphate, significant and negative correlationships among soil enzyme activities and soil Ph. Long-term treatment of organic fertilizer combined with chemical fertilizer could increase soil enzyme activity in soybean field, which had close relationships with soil nutrients
参考文献/References:
[1]Manjaiah K,Dhyan S. Soil organic matter and biological properties after 26 years of maize-wheat-cowpea cropping as affected by manure and fertilization in a Cambisol in semiarid region of India[J]. Agriculture Ecosystems & Environment, 2001, 86: 155-162
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备注/Memo
基金项目:农业部公益性行业专项(201303126); 国家“十二五”科技支撑计划(2013BAD07B01, 2013BAD11B03);黑龙江省留学回归人员择优资助。第一作者简介:马星竹(1980-), 女, 博士, 副研究员, 主要从事土壤肥力与土壤生物活性研究。E-mail: maxingzhu@163.com。