[1]李云龙,许益伟,郁洁,等.蚯蚓粪施用对滨海盐碱地土壤质量及玉米产量的影响[J].江苏农业学报,2024,(11):2053-2061.[doi:doi:10.3969/j.issn.1000-4440.2024.11.009]
　LI Yunlong,XU Yiwei,YU Jie,et al.Effects of vermicompost application on soil quality and maize yield in coastal saline-alkali land[J].,2024,(11):2053-2061.[doi:doi:10.3969/j.issn.1000-4440.2024.11.009]
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蚯蚓粪施用对滨海盐碱地土壤质量及玉米产量的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2024年11期
页码:
2053-2061
栏目:
耕作栽培·资源环境
出版日期:
2024-11-30

文章信息/Info

Title:
Effects of vermicompost application on soil quality and maize yield in coastal saline-alkali land
作者:
李云龙1; 许益伟1; 郁洁2; 仇美华2; 王绪奎2; 左文刚1; 单玉华1; 柏彦超1; 3
(1.扬州大学环境科学与工程学院,江苏扬州225127；2.江苏省耕地质量与农业环境保护站,江苏南京210029；3.江苏省有机固体废弃物资源化协同创新中心,江苏南京210018)
Author(s):
LI Yunlong1; XU Yiwei1; YU Jie2; QIU Meihua2; WANG Xukui2; ZUO Wengang1; SHAN Yuhua1; BAI Yanchao1; 3
(1.College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China；2.Jiangsu Farmland Quality and Agricultural Environmental Protection Station, Nanjing 210029, China；3.Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210018, China)
关键词:
滨海盐碱地; 蚯蚓粪; 土壤质量; 玉米产量
Keywords:
coastal saline-alkali land; vermicompost; soil quality; maize yield
分类号:
S156.4; S156.91
DOI:
doi:10.3969/j.issn.1000-4440.2024.11.009
文献标志码:
A
摘要:
为探究外源有机物料施用对滨海盐碱地土壤质量及玉米产量的影响,以蚯蚓粪作为外源有机物料,本研究设置对照(CK)、蚯蚓粪低施用量(V50)、蚯蚓粪中施用量(V100)和蚯蚓粪高施用量(V200)共4个处理,探讨施用蚯蚓粪对滨海盐碱地土壤理化性质、酶活性、微生物碳源利用情况、微生物群落组成以及对玉米生长和产量的影响。研究结果表明,与对照相比,施用蚯蚓粪的滨海盐碱地玉米株高、生物量及产量显著提升；蚯蚓粪改良后滨海盐碱地土壤pH、盐分含量显著降低,有机碳、全氮、碱解氮和有效磷含量显著增加；施用蚯蚓粪后土壤二乙酸荧光素水解酶、蔗糖酶、脲酶及碱性磷酸酶活性显著提高,土壤微生物碳源代谢活性、香农多样性指数以及丰富度指数显著提升,对氨基酸、酚酸、碳水化合物类能源的代谢能力显著增强。此外,高通量测序结果显示,蚯蚓粪重塑了滨海盐碱地土壤微生物群落,脱硫单胞菌属、芽孢杆菌属、被孢霉属等功能微生物类群的优势地位明显提升；普鲁克分析结果显示,蚯蚓粪施用后滨海盐碱地玉米生长及产量的提升与土壤理化性状、酶活性、微生物群落组成及功能多样性的改善显著相关。综上,蚯蚓粪可以通过消减土壤盐害、碱害,增加土壤有机碳固持、提升养分供应,重塑微生物群落并提升其功能多样性,从而改善滨海盐碱地土壤质量,促进玉米增产。其中,高施用量处理对滨海盐碱地土壤改良及玉米产量的提升效果最佳,但单位有机物增产量有所降低。本研究结果对保障滨海盐碱地农业可持续发展具有重要意义。
Abstract:
In order to explore the effects of exogenous organic ameliorant application on soil quality and maize yield in coastal saline-alkali land, vermicompost was chosen as exogenous organic ameliorant. Four treatments were set up, including non-vermicompost application control (CK), vermicompost application rate of 50 t/hm2 (V50), vermicompost application rate of 100 t/hm2 (V100), and vermicompost application rate of 200 t/hm2 (V200). The effects of vermicompost application on soil physicochemical properties, enzyme activity, microbial carbon source utilization pattern, microbial community composition, and maize growth and yield in coastal saline-alkali land were investigated. The results showed that compared with the control, the plant height, biomass and yield of maize in coastal saline-alkali land with vermicompost were significantly increased. After the application of vermicompost, the soil pH and salt content decreased significantly, and the contents of organic carbon, total nitrogen, alkali-hydrolyzable nitrogen and available phosphorus increased significantly. After the application of vermicompost, the activities of soil fluorescein diacetate hydrolase, sucrase, urease and alkaline phosphatase were significantly increased, the metabolic activity of soil microbial carbon source, Shannon diversity index and richness index were significantly increased, and the metabolic ability to amino acids, phenolic acids and carbohydrates was significantly enhanced. In addition, the results of high-throughput sequencing showed that vermicompost reshaped the soil microbial community in coastal saline-alkali land, and the dominant position of functional microbial groups such as Desulfomonas, Bacillus and Mortierella was significantly improved. Procrustes analysis indicated that the improvement of maize growth and yield in coastal saline-alkali land after vermicompost application was significantly correlated with the improvement of soil physical and chemical properties, enzyme activity, microbial community composition and functional diversity. In summary, vermicompost could improve soil quality and promote maize yield by reducing soil salt and alkali damage, increasing soil organic carbon, improving nutrient supply, reshaping microbial communities and enhancing their functional diversity. The treatment of vermicompost at application rate of 200 t/hm2 exhibited the best effect on the improvement of soil quality and maize yield, but the increment of maize yield resulted by organics per unit mass decreased. The results of this study are of great significance to ensure the sustainable development of agriculture in coastal saline-alkali land.

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备注/Memo

备注/Memo:
收稿日期:2024-09-07基金项目:江苏省农业科技自主创新资金项目[CX(23)1019]作者简介:李云龙(1989-),男,山西晋中人,博士,讲师,主要从事土壤修复和土壤微生物生态研究。(E-mail)liyunlong@yzu.edu.cn通讯作者:柏彦超,(E-mail)ycbai@yzu.edu.cn
更新日期/Last Update: 2025-01-20