Long-term adoption of reduced tillage and green manure improves soil physicochemical properties and increases the abundance of beneficial bacteria in a Mediterranean rainfed almond orchard

Özbolat, Onurcan; Sánchez-Navarro, Virginia; Zornoza, Raúl; Egea‐Cortines, Marcos; Cuartero, Jessica; Ros, Margarita; Pascual, José Antonio; Boix‐Fayos, Carolina; Almagro, María; Vente, Joris de; Díaz-Pereira, Elvira; Martínez-Mena, María

doi:10.1016/j.geoderma.2022.116218

Cited by 30 publications

(16 citation statements)

References 90 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fertilization treatments such as NP and NPM significantly increased soil nutrients and microbial activities in our study. This is likely because of the input of exogenous nutrients, as previously suggested [ 55 ]. Long-term application of fertilizers, particularly organic fertilizers can significantly increase soil nutrient pools [ 7 , 8 ], which stimulate the activities of microbial communities [ 8 , 56 ].…”

Section: Discussionmentioning

confidence: 83%

“…In the WC system, fertilization-enriched taxa included Sphingomonadaceae , Xanthomonadaceae , Rhodobacteraceae , and Nocardioidaceae , some of which can degrade various complex compounds and pollutants [ 80 – 85 ], and Rhodospirillaceae , Xanthobacteraceae , and Oxalobacteraceae , some of which can fix N [ 86 – 88 ]. In the GLR system, fertilization-enriched taxa included BIrii41 and Streptomycetaceae , some of which are known to be resistant to both heavy metals and pathogens [ 83 , 89 , 90 ], Microscillaceae and Streptomycetaceae , some of which can degrade gelatin and plant residues [ 55 , 91 ], and Rhizobiaceae , some of which can fix N and solubilize inorganic P [ 75 , 90 ]. Most of these fertilization-enriched taxa have also been reported to have the ability to improve plant growth [ 55 , 74 , 75 , 83 , 90 , 92 – 96 ].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Contrasting response of soil microbiomes to long-term fertilization in various highland cropping systems

Kong,

Qiu,

Ishii

et al. 2023

ISME Communications

View full text Add to dashboard Cite

Soil microbiomes play important roles in supporting agricultural ecosystems. However, it is still not well-known how soil microbiomes and their functionality respond to fertilization in various cropping systems. Here we examined the effects of 36 years of phosphorus, nitrogen, and manure application on soil bacterial communities, functionality and crop productivity in three contrasting cropping systems (i.e., continuous leguminous alfalfa (AC), continuous winter wheat (WC), and grain-legume rotation of winter wheat + millet - pea - winter wheat (GLR)) in a highland region of China’s Loess Plateau. We showed that long-term fertilization significantly affected soil bacterial communities and that the effects varied with cropping system. Compared with the unfertilized control, fertilization increased soil bacterial richness and diversity in the leguminous AC system, whereas it decreased those in the GLR system. Fertilization, particularly manure application, enlarged the differences in soil bacterial communities among cropping systems. Soil bacterial communities were mostly affected by the soil organic carbon and nitrogen contents in the WC and GLR systems, but by the soil available phosphorous content in the AC system. Crop productivity was closely associated with the abundance of fertilization-responsive taxa in the three cropping systems. Our study highlights that legume and non-legume cropping systems should be disentangled when assessing the responses of soil microbial communities to long-term fertilizer application.

show abstract

Section: Discussionmentioning

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Contrasting response of soil microbiomes to long-term fertilization in various highland cropping systems

Kong,

Qiu,

Ishii

et al. 2023

ISME Communications

View full text Add to dashboard Cite

show abstract

“…Solirubrobacter belongs to Actinobacteriota, which is associated with the mineralization of soil organic matter and the release of available nutrients to plants. Thus, the increase in the relative number of Solirubrobacter indicates the improvement of soil fertility and productivity [58,59]. Previous studies have indicated that the increase in the relative abundance of the dominant nitrogen-fixing bacterium Bradyrhizobium may be regulated by soil phosphorus, and the increase in TP content under interruption may be the reason for the increase in its relative abundance [60,61].…”

Section: Changes In Soil Bacterial Structure At the Genus Level Befor...mentioning

confidence: 99%

Interruption after Short-Term Nitrogen Additions Improves Ecological Stability of Larix olgensis Forest Soil by Affecting Bacterial Communities

Qu,

Zhao,

Yan

et al. 2024

Microorganisms

View full text Add to dashboard Cite

Atmospheric nitrogen deposition can alter soil microbial communities and further impact the structure and function of forest ecosystems. However, most studies are focused on positive or negative effects after nitrogen addition, and few studies pay attention to its interruption. In order to investigate whether interruption after different levels of short-term N additions still benefit soil health, we conducted a 2-year interruption after a 4-year short-term nitrogen addition (10 and 20 kg N·hm−2·yr−1) experiment; then, we compared soil microbial diversity and structure and analyzed soil physicochemical properties and their correlations before and after the interruption in Larix olgensis forest soil in northeast China. The results showed that soil ecological stabilization of Larix olgensis forest further improved after the interruption compared to pre-interruption. The TN, C:P, N:P, and C:N:P ratios increased significantly regardless of the previous nitrogen addition concentration, and soil nutrient cycling was further promoted. The relative abundance of the original beneficial microbial taxa Gemmatimonas, Sphingomonas, and Pseudolabrys increased; new beneficial bacteria Ellin6067, Massilia, Solirubrobacter, and Bradyrhizobium appeared, and the species of beneficial soil microorganisms were further improved. The results of this study elucidated the dynamics of the bacterial community before and after the interruption of short-term nitrogen addition and could provide data support and a reference basis for forest ecosystem restoration strategies and management under the background of global nitrogen deposition.

show abstract

“…Green manures, also referred to as cover crops, are generally grown at times when soil would otherwise be bare, typically in the period after a crop is harvested or the orchard alleyways ( Lal, 2015 ). The utilization of green manure represents a significant field management strategy that can enhance the effectiveness of soil P and reduce the reliance on mineral P fertilizers ( Li et al., 2015 ; Jamal et al., 2023 ; Ozbolat et al., 2023 ; Zhang et al., 2023 ). According to the study conducted by de Oliveira et al., 2017 in no-tillage onion production of Santa Catarina, Brazil, the incorporation of green manure residues has demonstrated the ability to promptly release soluble inorganic P (P i ) and elevate the availability of P in the soil.…”

Section: Introductionmentioning

confidence: 99%

Green manure incorporation enhanced soil labile phosphorus and fruit tree growth

Yang,

Zhang,

Chang

et al. 2024

Front. Plant Sci.

View full text Add to dashboard Cite

IntroductionThe incorporation of green manures substantially enhances the conversion of external phosphorus (P) fertilizers and soil-reserved P into forms readily available to plants. The study aims to evaluate the influence of green manure additions on soil phosphorus dynamics and citrus growth, considering different green manure species and initial soil phosphorus levels. Additionally, the research seeks to elucidate the microbiological mechanisms underlying the observed effects.MethodsA citrus pot experiment was conducted under both P-surplus (1.50 g·P·kg-1) and P-deficient (0.17 g·P·kg-1) soils with incorporating legume (Leg), non-legume (Non-Leg) or no green manure residues (CK), and 18O-P labeled KH2PO4 (0.5 g, containing 80‰ δ18Op) was additionally introduced to trace the turnover characteristics of chemical P fertilizer mediated by soil microorganisms.Results and discussionIn P-surplus soil, compared with the CK treatment, the Leg treatment significantly increased soil H2O-Pi (13.6%), NaHCO3-Po (8.9%), NaOH-Pi (9.5%) and NaOH-Po (30.0%) content. It also promoted rapid turnover of P sources into H2O-Pi and NaHCO3-Pi pools by enhancing the phoC (576.6%) gene abundance. In contrast, the Non-Leg treatment significantly augmented soil H2O-Pi (9.2%) and NaHCO3-Po (8.5%) content, facilitating the turnover of P sources into NaHCO3-Pi pools. Under P-deficient soil conditions, compared with the CK treatment, the Leg treatment notably raised soil H2O-Pi (150.0%), NaHCO3-Pi (66.3%), NaHCO3-Po (34.8%) and NaOH-Pi (59.0%) content, contributing to the transfer of P sources into NaHCO3-Pi and NaOH-Pi pools. This effect was achieved through elevated ALP (33.8%) and ACP (12.9%) activities and increased pqqC (48.1%), phoC (42.9%), phoD (21.7%), and bpp (27.4%) gene abundances. The Non-Leg treatment, on the other hand, led to significant increases in soil NaHCO3-Pi (299.0%) and NaHCO3-Po (132.6%) content, thereby facilitating the turnover of P sources into NaHCO3-Pi and NaOH-Pi pools, except for the phoC gene abundance. Both Leg and Non-Leg treatments significantly improved citrus growth (7.3-20.0%) and P uptake (15.4-42.1%) in P-deficient soil but yielded no substantial effects in P-surplus soil. In summary, introducing green manure crops, particularly legume green manure, emerges as a valuable approach to enhance soil P availability and foster fruit tree growth in orchard production.

show abstract

Long-term adoption of reduced tillage and green manure improves soil physicochemical properties and increases the abundance of beneficial bacteria in a Mediterranean rainfed almond orchard

Cited by 30 publications

References 90 publications

Contrasting response of soil microbiomes to long-term fertilization in various highland cropping systems

Contrasting response of soil microbiomes to long-term fertilization in various highland cropping systems

Interruption after Short-Term Nitrogen Additions Improves Ecological Stability of Larix olgensis Forest Soil by Affecting Bacterial Communities

Green manure incorporation enhanced soil labile phosphorus and fruit tree growth

Contact Info

Product

Resources

About