LIU Chenyan,WANG Delu,YAN Jing.Effects of Different Fertilizers on Mycorrhizal Infection and Soil Properties of Blueberry[J].Northern Horticulture,2019,43(20):31-39.[doi:10.11937/bfyy.20190860]
不同肥种对蓝莓菌根侵染特性及土壤理化性质的影响
- Title:
- Effects of Different Fertilizers on Mycorrhizal Infection and Soil Properties of Blueberry
- Keywords:
- blueberry; mycorrhizal fungi; fertilizer; root activity; malondialdehyde (MDA); soil factors
- 文献标志码:
- A
- 摘要:
- 为探究不同肥种对蓝莓菌根及土壤理化性质的影响,以7年生兔眼蓝莓‘灿烂’为试材,研究了6种处理(CK、DP、HH、KS、LZ和HF)对蓝莓菌根着生状态及侵染率、根系活力、根系丙二醛(MDA)含量、土壤主要营养成分含量及蓝莓产量的影响。结果表明:蓝莓菌根菌着生普遍,DP处理的蓝莓菌根侵染率最高,且与HH、KS处理的菌根侵染率均达到3级;5种施肥处理均显著提升蓝莓的根系活力(P<0.05),DP处理的蓝莓根系活力最高;5种施肥处理显著降低了蓝莓根系MDA含量;LZ处理的结果数、坐果率、单果质量、单株产量均达到较高水平。综上所述,LZ、HF和DP处理均能显著降低土壤pH,整体提高土壤综合肥力,增加蓝莓产量。因此在蓝莓生产上,建议适当增加土壤有机质、有机酸和全钾的含量,有利于提高蓝莓菌根侵染率和根系活力,降低蓝莓根系MDA含量。
- Abstract:
- In order to explore the effects of different fertilizers on the mycorrhizal and soil physical and chemical properties of blueberry,six treatments (CK,DP,HH,KS,LZ and HF) were used to study the effects of the 7-year-old rabbit-eye blueberry ‘Britewell’ on the influence of mycorrhizal state and infection rate,root activity,malondialdehyde (MDA) content in root system,main nutrient content in soil and blueberry yield.The results showed that the mycorrhizal fungi were common in blueberry,and the mycorrhizal infection rate of DP treatment was the highest,and reached grade 3 with HH and KS treatments.The root activity of blueberry was significantly increased by five fertilization treatments (P<0.05),and the root activity of blueberry was the highest by DP treatment.The malondialdehyde content of blueberry root was significantly decreased by five fertilization treatments.The number of fruits,fruit setting rate,single fruit weight and yield per plant of LZ treatment reached a higher level than other treatments.In conclusion,LZ,HF and DP treatments could significantly reduce soil pH,enhancing the comprehensive fertility of soil as a whole and increase blueberry yield.Therefore,in blueberry production,it was suggested that the contents of soil organic matter,organic acid and total potassium should be increased appropriately to increase the mycorrhizal infection rate and root activity of blueberry,and to reduce the MDA content of blueberry root system.
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备注/Memo
第一作者简介:刘臣艳(1989-),女,硕士,研究方向为蓝莓生理生态。E-mail:412242961@qq.com.责任作者:王德炉(1970-),男,博士,教授,硕士生导师,现主要从事栽培蓝莓水肥耦合机制、蓝莓菌根生理效应以及森林培育等研究工作。E-mail:1539349567@qq.com.基金项目:国家自然科学基金资助项目(31760205,31260192)。收稿日期:2019-04-29