摘要
本研究系统探讨了不同施肥处理对橡胶园土壤肥力、酶活性及微生物群落结构的综合影响,以期为橡胶园土壤可持续养分管理提供理论依据。以橡胶品系热研7-33-97为研究对象,设置不施肥(CK)、常规化肥(CF)、有机无机复混肥(OF)以及2种控释比例的缓释肥(SF 25%、SF 50%)共5种处理,通过测定土壤化学性质、酶活性及微生物群落结构,系统探究三者之间的关联性。结果表明:与CF相比,OF处理显著提高了土壤有机质含量(35.40%)、有效磷含量(40.00%)、pH(10.86%)和脲酶活性(54.84%),SF 25%显著提高了有效磷含量(43.00%)和过氧化氢酶活性(19.23%)。SF 50%处理的有效磷含量与CF无显著差异,且显著低于OF和SF 25%处理。微生物群落分析结果显示,各施肥处理间细菌和真菌α多样性差异均不显著,但β多样性分析表明施肥处理对真菌群落结构产生了显著影响。此外,OF与SF 25%处理均提高了酸杆菌门(93.47%、64.58%)、朱氏杆菌属(351.56%、222.53%)、真菌子囊菌门(38.43%、11.13%)的相对丰度,并降低了罗兹菌门的相对丰度。而SF 50%处理降低了球囊菌门(53.70%)的相对丰度。综上,有机无机复混肥(OF)与缓释肥(SF 25%)在提升土壤肥力、酶活性和微生物群落结构方面效果更优异,可作为胶园土壤健康管理的推荐施肥策略。
The comprehensive effects of different fertilization treatments on soil fertility,enzyme activity and microbial community structure in rubber plantations were systematically investigated to provide a theoretical basis for sustainable nutrient management of rubber plantation soils.Using the rubber clone Reyan 7-33-97 as the research subject,five treatments were set,no fertilization(CK),conventional chemical fertilizer(CF),organic-inorganic compound fertilizer(OF),and two slow-release fertilizers with different release ratios(SF 25%and SF 50%).Soil chemical properties,enzyme activity and microbial community structure were measured to systematically explore the relationships among the factors.Compared with CF,OF treatment significantly increased soil organic matter(35.40%),available phosphorus(40.00%),pH(10.86%)and urease activity(54.84%).SF 25%significantly increased available phosphorus(43.00%)and catalase activity(19.23%).The available phosphorus content in SF 50%treatment showed no significant difference from CF,but was significantly lower than that in OF and SF 25%treatments.Microbial community analysis revealed that there were no significant differences in bacterial and fungalα-diversity across the treatments,butβ-diversity analysis showed that fertilization treatments had a significant effect on the fungal community structure.Furthermore,both OF and SF 25%treatments significantly increased the relative abundance of Acidobacteria(93.47%,64.58%),Chujaibacter(351.56%,222.53%)and Ascomycota(38.43%,11.13%)while decreasing the relative abundance of Rozellomycota.The SF 50%treatment significantly decreased the relative abundance of Glomeromycota(53.70%).In conclusion,organic-inorganic compound fertilizer(OF)and slow-release fertilizer(SF 25%)were more effective in improving soil fertility,enzyme activity and microbial community structure,and can be recommended as fertilization strategies for soil health management in rubber plantations.
作者
张淑娟
黄艳艳
刘海林
杨红竹
李建宏
蒙盼盼
陈善帅
林清火
ZHANG Shujuan;HUANG Yanyan;LIU Hailin;YANG Hongzhu;LI Jianhong;MENG Panpan;CHEN Shanshuai;LIN Qinghuo(School of Tropical Agriculture and Forestry,Hainan University,Danzhou,Hainan 571737,China;Rubber Research Institute,Chinese Academy of Tropical Agricultural Sciences/Haikou Key Laboratory of Soil Health and Nutrient Utilization,Haikou,Hai-nan 571101,China;Danzhou Soil Environment of Rubber Plantation,Hainan Observation and Research Station,Danzhou,Hainan 571737,China)
出处
《热带作物学报》
北大核心
2026年第3期647-658,共12页
Chinese Journal of Tropical Crops
基金
国家天然橡胶产业技术体系项目(No.CARS-33-ZP2)
中国热带农业科学院国家热带农业科学中心科技创新团队项目(No.CATASCXTD202303)
中央级公益性科研院所基本科研业务费专项(No.1630022025002)。
关键词
橡胶园
不同施肥处理
土壤肥力
土壤酶活性
微生物群落结构
rubber plantation
different fertilization treatments
soil fertility
soil enzyme activities
microbial community structure
