[1]刘亚军,胡启国,王文静,等.生物有机肥以及钙镁硅型土壤调理剂对甘薯连作田土壤团聚体稳定性及有机碳含量的影响[J].江苏农业学报,2025,(01):51-60.[doi:doi:10.3969/j.issn.1000-4440.2025.01.007]
　LIU Yajun,HU Qiguo,WANG Wenjing,et al.Effects of bio-organic fertilizer and calcium magnesium silicon soil conditioner on soil aggregate stability and organic carbon content in sweet potato continuous cropping field[J].,2025,(01):51-60.[doi:doi:10.3969/j.issn.1000-4440.2025.01.007]
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生物有机肥以及钙镁硅型土壤调理剂对甘薯连作田土壤团聚体稳定性及有机碳含量的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年01期
页码:
51-60
栏目:
耕作栽培·资源环境
出版日期:
2025-01-31

文章信息/Info

Title:
Effects of bio-organic fertilizer and calcium magnesium silicon soil conditioner on soil aggregate stability and organic carbon content in sweet potato continuous cropping field
作者:
刘亚军1; 胡启国1; 王文静1; 吉存良2; 储凤丽1
(1.商丘市农林科学院,河南商丘476000；2.柘城县农业农村局,河南柘城476200)
Author(s):
LIU Yajun1; HU Qiguo1; WANG Wenjing1; JI Cunliang2; CHU Fengli1
(1.Shangqiu Academy of Agriculture and Forestry Sciences, Shangqiu 476000, China;2.Agriculture and Rural Affairs Bureau of Zhecheng County, Zhecheng 476200, China)
关键词:
甘薯; 连作; 生物有机肥; 钙镁硅型土壤调理剂; 土壤团聚体; 土壤有机碳
Keywords:
sweet potato; continuous cropping; bio-organic fertilizer; calcium magnesium silicon type soil conditioner; soil aggregate; soil organic carbon
分类号:
S531
DOI:
doi:10.3969/j.issn.1000-4440.2025.01.007
文献标志码:
A
摘要:
为解决甘薯连作田土壤团聚体稳定性变差以及有机碳含量降低等问题,通过田间定位试验,以甘薯多年连作地为研究对象,设置5个处理:不施肥对照(CK1)、单施化肥对照(CK2)、单施生物有机肥处理(BF)、化肥+生物有机肥处理(CF)、化肥+土壤调理剂处理(CC),研究不同施肥措施条件下土壤团聚体组成、稳定性以及团聚体有机碳含量的变化规律。结果表明,与不施肥对照或单施化肥对照相比,化肥+生物有机肥或化肥+土壤调理剂处理既提高了＞2.000 mm、0.251～2.000 mm粒级团聚体含量和团聚体平均重量直径(MWD)、几何平均直径(GMD)、>0.250 mm粒级大团聚体含量(R＞0.250),又增加了全土以及各粒级团聚体总有机碳(TOC)和轻组有机碳(LOC)含量,提升了＞2.000 mm、0.251～2.000 mm粒级团聚体对TOC、LOC以及HOC的贡献率,还提高了鲜薯产量。化肥+土壤调理剂处理＞2.000 mm、0.251～2.000 mm粒级团聚体含量、GMD、R＞0.250、各粒级团聚体LOC含量以及＞2.000 mm、0.251～2.000 mm团聚体对TOC、LOC、HOC的贡献率最高；单施生物有机肥处理MWD以及各粒级团聚体TOC、HOC含量均最高；化肥+生物有机肥和化肥+土壤调理剂处理鲜薯产量最高。冗余分析显示,甘薯连作田土壤TOC、LOC含量与土壤团聚体MWD、GMD及R＞0.250呈正相关关系,与分形维数（D）呈负相关关系,其中R＞0.250(56.15%)为主要驱动因子。多年连续配施生物有机肥或土壤调理剂均有利于提升土壤团聚体稳定性,提高土壤有机碳及其组分含量。在本试验条件下,化肥配施土壤调理剂处理(CC)表现较好。
Abstract:
In order to solve the problems of poor stability of soil aggregates and decrease of organic carbon content in sweet potato continuous cropping field, the field positioning test was carried out in sweet potato continuous cropping field for many years. Five treatments were set up, including no fertilizer (CK1), single application of chemical fertilizer (CK2), single application of bio-organic fertilizer (BF), chemical fertilizer + bio-organic fertilizer (CF), chemical fertilizer + soil conditioner (CC). The changes of soil aggregate composition, stability and aggregate organic carbon content under different fertilization measures were studied. The results showed that compared with CK1 or CK2, CF treatment or CC treatment increased the content of >2.000 mm and 0.251-2.000 mm aggregates, the mean weight diameter (MWD), geometric mean diameter (GMD), and the content of > 0.250 mm macroaggregates (R>0.250), and increased the total organic carbon (TOC) content and light fraction organic carbon (LOC) content of the whole soil and aggregates. Moreover, the contribution rate of >2.000 mm and 0.251-2.000 mm aggregates to TOC, LOC and heavy fraction organic carbon (HOC) was increased, and the yield of fresh potato was also increased. Under CC treatment, the content of >2.000 mm and 0.251-2.000 mm aggregates, GMD, R>0.250, LOC content of each aggregate and the contribution rate of >2.000 mm and 0.251-2.000 mm aggregates to TOC, LOC and HOC were the highest. The contents of TOC and HOC in aggregates and MWD were the highest under BF treatment, and the yield of fresh potato was the highest under CF and CC treatments. Redundancy analysis showed that soil TOC content and LOC content were positively correlated with MWD, GMD and R>0.250, and negatively correlated with D. R>0.250(56.15%) was the main driving factor. Continuous application of bio-organic fertilizer or soil conditioner for many years was conducive to improving the stability of soil aggregates and increasing the content of soil organic carbon and its components. Under the conditions of this experiment, the treatment of chemical fertilizer combined with soil conditioner (CC) performed better.

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备注/Memo

备注/Memo:
收稿日期:2024-01-22基金项目:现代农业产业技术体系“国家甘薯产业技术体系”项目(CARS-10)、中央引导地方(河南)科技发展资金资助项目(Z20231811128)作者简介:刘亚军(1990-),男,河南商丘人,硕士,助理研究员,主要从事甘薯新品种选育及栽培研究。(E-mail)liuyajun0812@163.com通讯作者:吉存良,(E-mail)jicunliang0221@126.com
更新日期/Last Update: 2025-02-28