Assessing potassium release in natural silica sand from novel K-enriched sewage sludge biochar fertilizers

Fachini, Jóisman; Figueiredo, Cícero Célio de; Vale, Ailton Teixeira do

doi:10.1016/j.jenvman.2022.115080

Cited by 22 publications

(5 citation statements)

References 43 publications

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“…It has been reported that physical forms that promote compacted proximity between the organic and mineral components in OMFs, such as pellets and grains, exhibit a more gradual release of nutrients compared to mineral controls or powdered mixtures of these constituents (Rodrigues et al, 2021;Fachini et al, 2022). However, this observation was not corroborated by the present study.…”

Section: Resultscontrasting

confidence: 88%

Testing biowaste materials as peat replacement in organo-mineral fertilizers

Sitzmann,

Sica,

Grignani

et al. 2024

Front. Sustain. Food Syst.

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Organo-mineral fertilizers (OMFs) can have higher efficiency than mineral fertilizers. In Europe, peat is commonly used as an organic matrix in OMFs, as it is a highly stable organic material. However, peat extraction releases long-term stored organic C. Stabilized biowaste materials could replace peat in OMFs. Thus, this study aimed to understand how the variety of chemical properties in biowastes can influence OMF-soil interactions and nutrient availability to plants. Peat, green compost (GC), municipal solid waste compost (MSWC), and vermicompost (VC) were used as the organic matrix of OMFs with a C-N-P2O5 content of 7.5, 10, and 5%, respectively. OMFs were tested first in a ten-day plant-free incubation to measure Hedley P fractionation, nitrate, ammonium, total N in the soil, and CO2 and NH3 emissions. Further, a 30-day greenhouse trial measured maize yield and N and P use efficiencies. Controls included no fertilization (N0P0) and mineral N and P fertilization (MFNP). No differences were found in the incubation experiment for mineral N fractions in the soil. Fertilization significantly increased CO2 emissions, which were slightly higher in OMFs over MFNP, whereas OMFs significantly increased ammonia volatilization compared to MFNP. Available P had consistent results in the incubation and the greenhouse trials. Peat and MFNP had the highest water-and bicarbonate-P pools in the first experiment and higher yield and P use efficiency by maize. Therefore, OMFs from biowaste materials exhibited limited suitability for short growth cycles due to lower P use efficiency and higher ammonia volatilization.

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Section: Resultscontrasting

confidence: 88%

Testing biowaste materials as peat replacement in organo-mineral fertilizers

Sitzmann,

Sica,

Grignani

et al. 2024

Front. Sustain. Food Syst.

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“…Fachini et al. (2022) found that biochar fertilizers are an excellent alternative to traditional chemical fertilizers due to their poor solubility and minimal risk of contaminating groundwater through leaching [ 26 ]. Straw returning can effectively reduce the application of mineral phosphate fertilizer without significantly reducing the cotton yield in coastal saline-alkali land [ 27 ], which also protects the quality of surface water [ 28 ].…”

Section: Literature Reviewmentioning

confidence: 99%

Factors influencing the farmer's chemical fertilizer reduction behavior from the perspective of farmer differentiation

Zheng¹,

Yin²,

Yu³

2022

Heliyon

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“…Previous studies reported that the application of biochar has been shown to increase soil microbial activity and improve the chemical and physical properties of the soil [14][15][16][17]. Fachini et al [18] found that biochar produced from sewage sludge is an excellent alternative to traditional chemical fertilizers.…”

Section: Introductionmentioning

confidence: 99%

Effects of Biochar and Arbuscular Mycorrhizal Fungi on Soil Health in Chinese Kale (Brassica oleracea var. alboglabra L.) Cultivation

Jatuwong,

Aiduang,

Kiatsiriroat

et al. 2024

Microbiology Research

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Biochar and arbuscular mycorrhizal fungi (AMF), a promising environmentally friendly soil enhancer and biostimulant, play a crucial role in sustainable agriculture by influencing soil properties and plant growth. This research investigates the chemical properties of three biochar types [bamboo (BB-char), corn cob (CC-char), and coffee grounds (CG-char)] derived from different biomass sources and their impact on soil quality and Chinese kale growth. The results reveal significant differences in chemical properties among different types of biochar. Particularly, CG-char showed the greatest pH value and phosphorus content, with an average of 10.05 and 0.44%, respectively. On the other hand, CC-char had the highest potassium content, with an average of 2.16%. Incorporating biochar into degraded soil enhances soil structure, promoting porosity and improved texture, as evidenced by scanning electron microscope images revealing distinct porous structures. Soil chemistry analyses in treatment T2–T14 after a 42-day cultivation demonstrate the impact of biochar on pH, electrical conductivity, organic matter, and organic carbon levels in comparison to the control treatment (T1). Furthermore, the research assesses the impact of biochar on Chinese kale growth and photosynthetic pigments. Biochar additions, especially 5% BB-char with AMF, positively influence plant growth, chlorophyll content, and photosynthetic pigment levels. Notably, lower biochar concentrations (5%) exhibit superior effects compared to higher concentrations (10%), emphasizing the importance of optimal biochar application rates. The study also delves into the total phenolic content in Chinese kale leaves, revealing that the synergistic effect of biochar and AMF enhances phenolic compound accumulation. The combination positively influences plant health, soil quality, and nutrient cycling mechanisms. Overall, the research indicates the multifaceted impact of biochar on soil and plant dynamics, emphasizing the need for tailored application strategies to optimize benefits in sustainable agriculture.

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Assessing potassium release in natural silica sand from novel K-enriched sewage sludge biochar fertilizers

Cited by 22 publications

References 43 publications

Testing biowaste materials as peat replacement in organo-mineral fertilizers

Testing biowaste materials as peat replacement in organo-mineral fertilizers

Factors influencing the farmer's chemical fertilizer reduction behavior from the perspective of farmer differentiation

Effects of Biochar and Arbuscular Mycorrhizal Fungi on Soil Health in Chinese Kale (Brassica oleracea var. alboglabra L.) Cultivation

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