An overview of natural soil amendments in agriculture

Garbowski, Tomasz; Bar-Michalczyk, Dominika; Charazińska, Sylwia; Grabowska-Polanowska, Beata; Kowalczyk, Agnieszka; Lochyński, Paweł

doi:10.1016/j.still.2022.105462

Cited by 55 publications

(34 citation statements)

References 113 publications

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“…This is a requirement for stable plant production, as high concentrations of ammonia-N (the predominant form in poultry-processing wastewater) are toxic to plants . Algae not only promote nitrifying bacteria but also participate directly in nutrient removal, generating protein-rich biomass that has potential value as a feed ingredient , or soil amendment . The findings here may extend to other food-processing wastewaters where the same types of antimicrobial agents are commonly employed for disinfection.…”

Section: Resultsmentioning

confidence: 99%

“…54 Algae not only promote nitrifying bacteria but also participate directly in nutrient removal, generating protein-rich biomass that has potential value as a feed ingredient 55,56 or soil amendment. 57 The findings here may extend to other food-processing wastewaters where the same types of antimicrobial agents are commonly employed for disinfection. Further research and development are needed to integrate algae and bacteria into a continuous treatment system and confirm the appropriate operating conditions to maximize their potential symbiosis.…”

Section: Microalgalmentioning

confidence: 99%

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Microalgae Can Promote Nitrification in Poultry-Processing Wastewater in the Presence and Absence of Antimicrobial Agents

et al. 2023

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Wastewater from poultry-processing plants can be challenging to treat, partially because of the antimicrobial processing aides such as peracetic acid (PAA) and cetylpyridinium chloride (CPC) which suppress nitrifying bacteria. The objective of this research was to test the effects of adding microalgae, PAA, and CPC on nitrification in poultry-processing wastewater. Batch experiments were designed to test two different green algae along with PAA or CPC in a set of full-factorial experiments. The presence of C. sorokiniana increased nitrate production up to 2.7-fold compared to cultures without algae, but this effect was only statistically significant in one of the experiments. The measurement of nitrate was confounded by the fact that this alga consumes both nitrite and nitrate. Carrying out the experiment with A. protothecoides (which does not consume nitrite or nitrate) resulted in 4–9-fold higher peak nitrate concentrations compared to cultures without algae (p < 0.005). These improvements were more than enough to overcome the negative suppressive effects of PAA and CPC. The results suggest that incorporation of algae into engineered treatment systems for poultry-processing wastewater could improve the function of nitrifying bacteria, enabling potential water reuse in hydroponic plant irrigation.

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Section: Resultsmentioning

confidence: 99%

Section: Microalgalmentioning

confidence: 99%

Microalgae Can Promote Nitrification in Poultry-Processing Wastewater in the Presence and Absence of Antimicrobial Agents

et al. 2023

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“…The prevalence of soil degradation in the region breaks the soil water and air balance, decreases soil fertility, decreases soil quality, and thereby compromises the agricultural production capacity (Liu et al, 2010; Wen et al, 2021; Yang et al, 2022). In addition, the Mollisol region contains a rich soil organic carbon (SOC) stock (Hu et al, 2022), and serious soil degradation accelerates the depletion of SOC in this region, which is admittedly related to global warming (Garbowski et al, 2023; Li & Han, 2016). Therefore, necessary and urgent measures are needed to combat soil degradation, particularly when extreme climate events are perceptible.…”

Section: Introductionmentioning

confidence: 99%

Effects of organic amendments on soil hydraulic characteristics in the Mollisols of Northeast China

Tian

Wang

et al. 2023

Land Degrad Dev

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Soil degradation in the Mollisol region of Northeast China is ubiquitous partly due to poor soil hydraulic characteristics. Improving soil hydraulic characteristics thus delivers benefits to soil sustainability. In this study, the effects of organic amendments on soil hydraulic characteristics were explored at the laboratory scale. Soil samples were subjected to three low‐cost and eco‐friendly organic amendments, including corn straw juice (CSJ), fulvic acid (FA), and humic acid (HA). The soil infiltration capacity, soil water characteristic curve (SWCC) and soil water retention capacity were determined by using a steel‐ring method and a centrifuge method. The parameters of the SWCC were fitted by a van Genuchten (VG) model, and the specific water capacity [C(h)] was calculated. In addition, bulk density (BD), macroporosity, and soil organic matter (SOM) were measured, and the relationships between the variables and processes were evaluated. The results indicated that the soil infiltration capacity (i.e., initial infiltration rate, cumulative infiltration, and steady infiltration rate) was significantly increased in the CSJ and FA treatments (p < 0.05) but decreased in the HA treatment compared to the control (CK) treatment. All the selected organic amendments improved the soil water release and supply capacity, and the CSJ2 treatment showed the best effect. The incorporation of CSJ, FA, and HA significantly improved the soil water retention capacity by increasing the saturated soil water content, field capacity, and plant available water capacity (p < 0.05). Such changes were significantly associated with macroporosity and SOM (p < 0.05). In this sense, our results showed that the CSJ treatment with 4 L m−2 and 50% volumetric concentration could be an effective soil amendment to improve the soil hydraulic characteristics in Mollisols and deserves further research.

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“…However, in literature the term soil amendment and soil conditioners have been used interchangeably. Soil amendments have been used in the past to improve soil fertility by increasing the availability of plant nutrients, increasing soil water, decreasing soil drying, maintaining microbiological activity in soil, and increasing nutrient uptake by plants [ 24 ]. Garbowski et al [ 24 ] recently reviewed the application of various organic soil amendments such as compost, biochar, sewage sludge, and algae, in agriculture.…”

Section: Introductionmentioning

confidence: 99%

“…Soil amendments have been used in the past to improve soil fertility by increasing the availability of plant nutrients, increasing soil water, decreasing soil drying, maintaining microbiological activity in soil, and increasing nutrient uptake by plants [ 24 ]. Garbowski et al [ 24 ] recently reviewed the application of various organic soil amendments such as compost, biochar, sewage sludge, and algae, in agriculture. Hydrogels are a type of soil amendment that have been applied in agriculture to increase water use efficiency [ 25 ], reduce nitrate leaching [ 26 ], reduce seepage losses in irrigation reservoirs [ 27 ], trap water that would have otherwise leached out of the root zone [ 28 ], control release agro-chemicals [ 29 ], remediate heavy metals from soil [ 30 ], used as a soil microbial inoculant [ 31 ], and used to improve soil hydraulic properties [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

The Impacts of Bio-Based and Synthetic Hydrogels on Soil Hydraulic Properties: A Review

et al. 2022

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Soil hydraulic properties are important for the movement and distribution of water in agricultural soils. The ability of plants to easily extract water from soil can be limited by the texture and structure of the soil, and types of soil amendments applied to the soil. Superabsorbent polymers (hydrogels) have been researched as potential soil amendments that could help improve soil hydraulic properties and make water more available to crops, especially in their critical growing stages. However, a lack of a comprehensive literature review on the impacts of hydrogels on soil hydraulic properties makes it difficult to recommend specific types of hydrogels that positively impact soil hydraulic properties. In addition, findings from previous research suggest contrasting effects of hydrogels on soil hydraulic properties. This review surveys the published literature from 2000 to 2020 and: (i) synthesizes the impacts of bio-based and synthetic hydrogels on soil hydraulic properties (i.e., water retention, soil hydraulic conductivity, soil water infiltration, and evaporation); (ii) critically discusses the link between the source of the bio-based and synthetic hydrogels and their impacts as soil amendments; and (iii) identifies potential research directions. Both synthetic and bio-based hydrogels increased water retention in soil compared to unamended soil with decreasing soil water pressure head. The application of bio-based and synthetic hydrogels both decreased saturated hydraulic conductivity, reduced infiltration, and decreased soil evaporation. Hybrid hydrogels (i.e., a blend of bio-based and synthetic backbone materials) may be needed to prolong the benefit of repeated water absorption in soil for the duration of the crop growing season.

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An overview of natural soil amendments in agriculture

Cited by 55 publications

References 113 publications

Microalgae Can Promote Nitrification in Poultry-Processing Wastewater in the Presence and Absence of Antimicrobial Agents

Microalgae Can Promote Nitrification in Poultry-Processing Wastewater in the Presence and Absence of Antimicrobial Agents

Effects of organic amendments on soil hydraulic characteristics in the Mollisols of Northeast China

The Impacts of Bio-Based and Synthetic Hydrogels on Soil Hydraulic Properties: A Review

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