The remediation effects of microbial organic fertilizer on soil microorganisms after chloropicrin fumigation

Pu, Rongfeng; Wang, Panpan; Guo, Lanping; Li, Minghua; Cui, Xiuming; Wang, Chengxiao; Liu, Yuan; Yang, Ye

doi:10.1016/j.ecoenv.2022.113188

Cited by 26 publications

(10 citation statements)

References 59 publications

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“…OF is rich in both organic matter and beneficial microorganisms [30,31]. Organic matter highly correlates with soil Cd availability and migration via adsorption, chelation, and complexation [8].…”

Section: Discussionmentioning

confidence: 99%

In Situ Toxicity Reduction and Food Safety Assessment of Pak Choi (Brassica campestris L.) in Cadmium-Contaminated Soil by Jointly Using Alkaline Passivators and Organic Fertilizer

Jiao,

Li,

et al. 2023

Toxics

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An economical and effective method is still lacking for cadmium (Cd) toxicity reduction and food product safety improvement in soil–vegetable systems. Therefore, this study aimed to reduce the Cd toxicity to pak choi (Brassica campestris L.) by jointly using passivators and organic fertilizer, highlighting food products’ safety based on pot experiments. The results showed that compared with the control, organic fertilizer decreased the Cd content in edible parts and the soil’s available Cd by 48.4% and 20.9% on average, respectively, due to the 0.15-unit increases in soil pH. Once jointly applied with passivators, the decrements increased by 52.3–72.6% and 32.5–52.6% for the Cd content in edible parts and for the soil’s available Cd, respectively, while the pH increment increased by 0.15–0.46 units. Compared with the control, the transport factor of Cd was reduced by 61.9% and 50.9–55.0% when applying organic fertilizer alone and together with the passivators, respectively. The combination treatment of biochar and organic fertilizer performed the best in decreasing the Cd content in the edible parts and the soil’s available Cd. The combination treatment of fish bone meal and organic fertilizer induced the greatest increases in soil pH. The grey relational analysis results showed that the combination treatment of biochar and organic fertilizer performed the best in reducing the potential Cd pollution risk, thereby highlighting the vegetable food safety. This study provides a potential economical and effective technology for toxicity reduction and food safety in Cd-polluted soil.

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Section: Discussionmentioning

confidence: 99%

In Situ Toxicity Reduction and Food Safety Assessment of Pak Choi (Brassica campestris L.) in Cadmium-Contaminated Soil by Jointly Using Alkaline Passivators and Organic Fertilizer

Jiao,

Li,

et al. 2023

Toxics

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“…The combination of LOF and PGR can provide benefits for the growth and production of tomato. LOF can provide the necessary nutrients for tomato, increase microbial activity, and increase nitrogen fixing bacteria, phosphate and potassium solubilization bacteria in the soil (Nhu et al, 2018;Handayani et al, 2021;Pu et al, 2022). PGR can improve the process of photosynthesis, root growth, and fruit production in tomato.…”

Section: Introductionmentioning

confidence: 99%

Combination of bio-organo-mineral fertilizers on optimizing the growth and production of tomatoes (Solanum lycopersicum L.) in dryland environment

Khairi,

Jayaputra,

Padusung

et al. 2023

J. Ilm. Pertan.

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Mineral or inorganic fertilizers are increasingly being used to increase tomato productivity. However, excessive use of inorganic fertilizers may negatively impact soil fertility and microbial activity. To maintain food safety and agricultural sustainability, the use of inorganic fertilizers must be balanced with organic fertilizers. Additionally, sub-optimal land, such as dryland, can be used to optimize tomato productivity, particularly in the North Lombok Regency, Indonesia. This study aimed to investigate the effect and interaction of a combination of liquid organic fertilizer (LOF), plant growth regulator (PGR), and NPK fertilizers as inorganic fertilizers on the growth and yield of tomatoes in dryland. The experimental design was a completely randomized block design, with two factors: the concentrations of commercial inorganic fertilizer (0, 1,300, and 2,600 ppm) and the type of commercial LOF (Bio-Extrim and Organox) + commercial PGR (Hormax). The results showed that the interaction was not significantly different between inorganic fertilizer and LOF + PGR, except for mean fruit weight in the first week of harvest. However, there were differences in responses at the level of each factor. The application of inorganic fertilizer at 2,600 ppm increased tomato productivity by 13.81%. LOF was only significantly different in fruit weight/plant in the first week of harvest and was not significant after that.

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“…Soil is rich in microorganisms -one gram of soil contains hundreds of fungi and bacteria species (Schlatter et al, 2018). Soil microorganisms are very important and directly affect the biochemical activity, biological productivity, and stability of soil (Sahu et al, 2017;Kaur, Kaur, 2021;Pu et al, 2022). They are actively involved in the carbon cycle and other processes by regulating the circulation of the elements in the soil.…”

Section: Introductionmentioning

confidence: 99%

“…A significant effect on the bacterial taxonomic composition was also found. Pu et al (2022) conducted an experiment to use basic organic and microbial organic fertilisers to restore soil microorganisms after fumigation. The results of the study showed that organic fertilisers can promote microbial diversity and increase the relative abundance of beneficial species.…”

Section: Introductionmentioning

confidence: 99%

Changes in soil microbial community structure after fertilisation with organic fertilisers and biological additives

Sivojienė,

Kačergius

2023

Zemdirbyste-Agriculture

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Various forms of organic fertilisers are often used in agriculture. It is useful to have information on how microbial communities in arable land are affected by fertilisation with different types of fertilisers. One of the indicators of the stability and fertility of the soil ecosystem is the population structure and abundance of soil microorganisms. The aim of the study was to determine how fertilisation and biological additives affected the most active soil microorganisms of the studied functional groups in 2021 and 2022. It was found that organotrophic (113 ± 3 × 10 3 CFU g −1 ) and diazotrophic (161 ± 5 × 10 3 CFU g −1 ) bacteria were most abundant in the spring 2021. However, in 2022, the amount of organotrophs decreased, and their abundance was approximately the same throughout the growing season, probably due to a decrease in the amount of free organic matter in the soil. In 2022, the most abundant organotrophs (91 ± 2 × 10 3 CFU g −1 ) and diazotrophs (100 ± 1 × 10 3 CFU g −1 ) were also in the spring. Organic fertilisers and their different rates had a significant or very significant effect on the abundance of organotrophic, mineral nitrogen-assimilating, and non-symbiotic diazotrophic bacteria, except for diazotrophs in treatments with the biological additive Trichoderma spp. In 2021, nitrifiers (162 ± 5 × 10 3 CFU g −1 ) and fungi (2.29 ± 0.13 × 10 3 CFU g −1 ) were most abundant in the autumn. In 2022, nitrifiers were most abundant in the spring (128 ± 2 × 10 3 CFU g −1 ) but less abundant than in the autumn 2021. During the experimental period, the abundance of fungi and yeasts was highest in the autumn, and this trend was not affected by fertilisation. In the treatments with the biological additive Trichoderma spp., organic fertilisers significantly or very significantly affected the abundance of fungi and yeasts. However, no significant differences were found in the treatments with the biological additive Azotobacter spp.

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The remediation effects of microbial organic fertilizer on soil microorganisms after chloropicrin fumigation

Cited by 26 publications

References 59 publications

In Situ Toxicity Reduction and Food Safety Assessment of Pak Choi (Brassica campestris L.) in Cadmium-Contaminated Soil by Jointly Using Alkaline Passivators and Organic Fertilizer

In Situ Toxicity Reduction and Food Safety Assessment of Pak Choi (Brassica campestris L.) in Cadmium-Contaminated Soil by Jointly Using Alkaline Passivators and Organic Fertilizer

Combination of bio-organo-mineral fertilizers on optimizing the growth and production of tomatoes (Solanum lycopersicum L.) in dryland environment

Changes in soil microbial community structure after fertilisation with organic fertilisers and biological additives

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