LI Zhiyou.Effect of Bio-organic Fertilizer on Soil Microbial Properties and Nutrients in Blueberry Root Zone[J].Research of Soil and Water Conservation,2017,24(02):36-42.
生物有机肥对蓝莓根区土壤养分及微生物学特性的影响
- Title:
- Effect of Bio-organic Fertilizer on Soil Microbial Properties and Nutrients in Blueberry Root Zone
- 分类号:
- S144.1
- 摘要:
- 以蓝莓为试材，研究了生物有机肥对蓝莓根区土壤养分及微生物学特性的影响。结果表明：（1）生物有机肥（BOF）显著增加了蓝莓根区土壤含水量（p < 0.01），显著降低了蓝莓根区土壤pH值、容重和总孔隙度（p < 0.01）；（2）生物有机肥增加了蓝莓根区土壤养分，BOF处理下蓝莓根区土壤有机碳、全氮、全钾、有效磷和有效钾含量均显著高于CK（p < 0.01），其中，以土壤有效养分的增加幅度最大，而对全磷的影响并不显著（p > 0.05）；（3）BOF处理下蓝莓根区土壤酸性磷酸酶活性、脲酶活性、蔗糖酶活性和过氧化氢酶活性均显著高于CK（p < 0.01）；（4）BOF处理下蓝莓根区土壤微生物量碳（MBC）、微生物量氮（MBN）含量均显著高于CK（p < 0.01），土壤微生物量碳和氮较养分的变化更为敏感，能有效评价生物有机肥的改良效果；（5）BOF处理下蓝莓根区土壤微生物周转速率加快，周期缩短，转移量增加，土壤微生物活性增强，有利于土壤养分的循环和保持。综合比较来看，生物有机肥可有效促进蓝莓根区土壤养分的吸收和营养代谢协调均衡，确保蓝莓的高产优质。
- Abstract:
- In order to provide bio-organic fertilizer references in the process of blueberry growth, blueberry was selected as test material, the effect of bio-organic fertilizer on soil microbial properties and nutrients in blueberry root zone was examined. The results are as follows. (1) The bio-organic fertilizer (BOF) had significantly increased the soil moisture (p < 0.01), and significantly decreased the soil pH, bulk density and total porosity in blueberry root zone (p < 0.01). (2) BOF had significantly increased the soil nutrients, the contents of soil organic carbon, total nitrogen, total potassium, effective phosphorus and effective potassium in blueberry root zone were significantly higher than those of CK (p < 0.01), the soil available nutrients rapidly increased, while BOF had no significantly effect on soil total phosphorus (p > 0.05). (3) BOF had significantly increased the soil acid phosphatase activity and soil urease activity and sucrase activity and catalase activity in blueberry root zone, which were significantly higher than those of CK (p < 0.01). (4) BOF had significantly increased the soil microbial biomass in blueberry root zone, which was significantly higher than that of CK (p < 0.01), and was more sensitive to soil nutrients and could effective evaluate the effects of bio-organic fertilizer. (5) BOF also significantly raised the contents of microbial biomass carbon and microbial biomass nitrogen, accelerated microbial turnover rate, shortened microbial turnover time, increased microbial transfer capacity and activate soil microbial activity, which was beneficial to recycling and maintaining soil fertility. In total, BOF could effectively promote the soil nutrition absorption and metabolic coordination equilibrium, and ensure the higher yield and quality of blueberry.
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备注/Memo
收稿日期:2016-03-21;改回日期:2016-04-01。
基金项目:贵州省安顺市三方联合基金项目”镇宁县不同主栽樱桃品种果酒生产与开发研究”（黔科合J字LKA[2013]11号）
作者简介:李志友(1980-),男,安徽蒙城人,硕士,讲师,研究方向:生物技术。Zhiyoulee@126.com