Reduced Chemical Fertilizer Combined With Bio-Organic Fertilizer Affects the Soil Microbial Community and Yield and Quality of Lettuce

Jin, Ning; Jin, Li; Wang, Shuya; Li, Jinwu; Liu, Fanhong; Liu, Zeci; Luo, Shilie; Wu, Yue; Lyu, Jian; Yu, Jiangnan

doi:10.3389/fmicb.2022.863325

Cited by 60 publications

(39 citation statements)

References 93 publications

(98 reference statements)

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“…Previous studies have confirmed that additional bacterial fertilizers can reduce nitrate concentration in vegetables, such as lettuce and tomato (Brunetti et al, 2019;Jiang et al, 2019;Jin et al, 2022). Jin et al (2022) pointed out the application of B. subtilis bioorganic fertilizer enriched organic matter concentration in the plant-body, which increased the quality of lettuce. Similar results were observed in the present study, where soluble sugar and protein levels were increased to varying degrees in the BF group.…”

Section: Discussionmentioning

confidence: 93%

“…Zhao et al (2019) reported that the application of bioorganic fertilizer including Bacillus could reshape the soil microbial community and promote pepper growth. It was shown that the application of Bacillus bioorganic fertilizer could be a sustainable pathway to improve soil nutrient utilization as well as increase the yield and quality of lettuce (Jin et al, 2022). In addition, Bacillus bioorganic fertilizer has recently been applied in the cultivation of economic crops, and the results show that it could stimulate microbial activity, inhibit banana Fusarium wilt disease and enhance the stress resistance of sorghum (Wu et al, 2019;Wang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Bioorganic fertilizer promotes pakchoi growth and shapes the soil microbial structure

Wang

Cheng

Huo³

et al. 2022

Front. Plant Sci.

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As a functional probiotic, Bacillus subtilis can promote crop growth and improve nutrient utilization by various mechanisms, so it has been made into bioorganic fertilizer as a replacement for chemical fertilizer. However, the effects of B. subtilis bioorganic fertilizer application on the yield and quality of commercial crops of Brassica chinensis L., the soil physicochemical properties and the microflora have not been clarified. In this study, pot experiments were conducted using Brassica chinensis L. plants with four fertilization treatments: control without fertilization (CK), chemical fertilizer (CF), organic fertilizer (OF), and bioorganic fertilizer containing B. subtilis (BF). After 30 days of pot experiment, the results showed that BF efficiently improved plant height and biomass (1.20- and 1.93-fold, respectively); as well as significantly increasing soil available potassium and pH value. Using high-throughput sequencing, we examined the bacterial and fungal communities in the soil, and found that their diversity was remarkablely reduced in the BF treatment compared to CK group. A principal coordinate analysis also showed a clear separation of bacterial and fungal communities in the BF and CK groups. After application of B. subtilis bioorganic fertilizer, some beneficial bacteria (such as Bacillus and Ammoniphilus) and fungi (Trichoderma and Mortierella) were enriched. A network analysis indicated that bacteria were the dominant soil microbes and the presence of B. subtilis stimulated the colonization of beneficial microbial communities. In addition, predictive functional profiling demonstrated that the application of bioorganic fertilizer enhanced the function of mineral element metabolism and absorption and increased the relative abundance of saprotrophs. Overall, the application of bioorganic fertilizer effectively changed the soil microflora, improved the soil available potassium and pH value, and boosted the yield of Brassica chinensis L. This work has valuable implications for promoting the safe planting of facility vegetables and the sustainable development of green agriculture.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Bioorganic fertilizer promotes pakchoi growth and shapes the soil microbial structure

Wang

Cheng

Huo³

et al. 2022

Front. Plant Sci.

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“…The content of K + , Ca 2+ , Mg 2+ , and Na + ions was determined by the method referenced to Jin et al (2022). Cucumber leaves to be tested were taken, dried and crushed, passed through a 0.25 mm sieve, and the dried leaf material (0.5 g) was decocted with sulfuric acid and hydrogen peroxide.…”

Section: Determination Of Mineral Element Contentmentioning

confidence: 99%

Enhancement of cucumber resistance under salt stress by 2, 4-epibrassinolide lactones

Wan²,

Jin³

et al. 2022

Front. Plant Sci.

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This study investigated the effects of exogenous 2, 4-epibrassinolide lactone (EBR) on the growth, photosynthetic pigments, antioxidant defense system, ion homeostasis, MAPK cascade and key genes of SOS signaling pathway of cucumber seedlings under salt stress using cucumber “Xinchun 4” as the test material. The experiment was set up with four treatments: foliar spraying of distilled water (CK), 50 mmol.L-1 NaCl (NaCl), 50 mmol.L-1 NaCl+foliar spray of 0.02 μmol.L-1 EBR (EBR+NaCl), and 50 mmol.L-1 NaCl+foliar spray of 24 μmol.L-1 Brassinazole (BRZ) (BRZ+NaCl). The results showed that EBR+NaCl treatment significantly increased plant height, above-ground fresh weight, total root length, total root surface area, average rhizome and photosynthetic pigment content compared to NaCl treatment. Meanwhile, compared with NaCl treatment, EBR+NaCl treatment significantly increased superoxide dismutase, catalase and ascorbate peroxidase (SOD, CAT and APX) activities, significantly promoted the accumulation of osmoregulatory substances (soluble sugars and proline), and thus effectively reduced malondialdehyde (MDA) content and relative electrical conductivity of cucumber leaves. Exogenous spraying of EBR also significantly reduced Na+/K+ under NaCl stress, effectively alleviating the toxic effects of Na+ ions. In addition, exogenous EBR induced the up-regulated expression of CsMAPK3, CsMAPK4, CsMAPK6 and CsMAPK9 genes in the MAPK cascade signaling pathway and CsSOS1, CsSOS2 and CsSOS3 genes in the SOS signaling pathway to enhance salt tolerance in cucumber under NaCl stress. Therefore, exogenous spraying EBR may effectively reduce the damage of salt stress on cucumber seedlings by improving antioxidant capacity, maintaining ion homeostasis and activating salt-tolerant related signaling pathways, which might promote the growth of cucumber seedlings and the establishment of root system morphology. This study provides a reference for EBR to improve the salt tolerance of cucumber.

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“…Regarding the impact of synthetic fertilizers on communities of soil fungi, prior studies have reported that synthetic N application can decrease soil fungal biomass diversity and change fungal populations (Gomiero et al, 2011 ). Furthermore, the use of synthetic fertilizers alters fungal community structure and decreases external mycelium arbuscular mycorrhizal of soil fungi, whereas the use of organic fertilizers increases it (Paungfoo-Lonhienne et al, 2015 ; Jin et al, 2022 ). Alternatively, organic manure fertilization (i.e., farmyard and green manure) improves soil structure and fertility by increasing soil nutrient availability and organic matter (Zhang et al, 2021 ; Ali et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Combined Application of Manure and Chemical Fertilizers Alters Soil Environmental Variables and Improves Soil Fungal Community Composition and Rice Grain Yield

et al. 2022

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Soil microorganisms play vital roles in energy flow and soil nutrient cycling and, thus, are important for crop production. A detailed understanding of the complex responses of microbial communities to diverse organic manure and chemical fertilizers (CFs) is crucial for agroecosystem sustainability. However, little is known about the response of soil fungal communities and soil nutrients to manure and CFs, especially under double-rice cropping systems. In this study, we investigated the effects of the application of combined manure and CFs to various fertilization strategies, such as no N fertilizer (Neg-CF); 100% chemical fertilizer (Pos-CF); 60% cattle manure (CM) + 40% CF (high-CM); 30% CM + 70% CF (low-CM); 60% poultry manure (PM) + 40% CF (high-PM), and 30% PM + 70% CF (low-PM) on soil fungal communities' structure and diversity, soil environmental variables, and rice yield. Results showed that synthetic fertilizer plus manure addition significantly increased the soil fertility and rice grain yield compared to sole CFs' application. Moreover, the addition of manure significantly changed the soil fungal community structure and increased the relative abundance of fungi such as phyla Ascomycota, Basidiomycota, Mortierellomycota, and Rozellomycota. The relative abundances dramatically differed at each taxonomic level, especially between manured and non-manured regimes. Principal coordinates analysis (PCoA) exhibited greater impacts of the addition of manure amendments than CFs on fungal community distributions. Redundancy analysis showed that the dominant fungal phyla were positively correlated with soil pH, soil organic C (SOC), total N, and microbial biomass C, and the fungal community structure was strongly affected by SOC. Network analysis explored positive relationships between microorganisms and could increase their adaptability in relevant environments. In addition, the structural equation model (SEM) shows the relationship between microbial biomass, soil nutrients, and rice grain yield. The SEM showed that soil nutrient contents and their availability directly affect rice grain yield, while soil fungi indirectly affect grain yield through microbial biomass production and nutrient levels. Our results suggest that manure application combined with CFs altered soil biochemical traits and soil fungal community structure and counteracted some of the adverse effects of the synthetic fertilizer. Overall, the findings of this research suggest that the integrated application of CF and manure is a better approach for improving soil health and rice yield.

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Reduced Chemical Fertilizer Combined With Bio-Organic Fertilizer Affects the Soil Microbial Community and Yield and Quality of Lettuce

Cited by 60 publications

References 93 publications

Bioorganic fertilizer promotes pakchoi growth and shapes the soil microbial structure

Bioorganic fertilizer promotes pakchoi growth and shapes the soil microbial structure

Enhancement of cucumber resistance under salt stress by 2, 4-epibrassinolide lactones

Combined Application of Manure and Chemical Fertilizers Alters Soil Environmental Variables and Improves Soil Fungal Community Composition and Rice Grain Yield

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