Effects of applying biochar and straw on nitrate leaching and maize yield production

Partovi, Zahra; Etedali, Hadi Ramezani; Kaviani, Abbas

doi:10.1111/wej.12684

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…Liu et al (2022b) showed that temporal succession was the main driving force for community structure, and crop types and root exudates were the main reason for the differences in community composition during the succession period. On the other hand, the decomposition of crop SSB and the dissolution of chemical fertilizers lead to the release of many nutrients and soluble organic matter, which stimulate the growth of microorganisms and the development of diversity (Ge et al, 2021;Partovi et al, 2021). In addition, we found that bacterial diversity of the S treatment was slightly lower than that of the other treatments at SS, but higher than that of the other treatments at MS. Because the S treatment at SS did not provide sufficient nutrients for the growth of the crop, the growth rate was significantly reduced, resulting in a decrease in nutrients required by the crops, while the straw provided a carbon source for the microorganisms, increasing the advantage of competition for nutrients between microorganisms and plant for limited nutrients (Bei et al, 2018).…”

Section: Discussionmentioning

confidence: 69%

“…The incorporation of biochar changes the soil's physicochemical properties and has a direct or indirect impact on soil microbial activities (Wu et al, 2019). This positive effect is related to the porous structure and large specific surface area of biochar, which provides a suitable and favorable shelter for the microbial community while also providing unstable carbon-containing organic matter and nutrients for microbial growth and reproduction, changing microbial activity (Gomez et al, 2014;Jaafar et al, 2014;Partovi et al, 2021). Previous reports have suggested that short-term biochar addition can significantly alter soil bacterial diversity, and a combination of biochar and chemical fertilizers is considered the most beneficial treatment for soil bacteria (Yu et al, 2018b).…”

Section: Introductionmentioning

confidence: 99%

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Response of bacterial community composition and co-occurrence network to straw and straw biochar incorporation

Zhang²,

Wang³

et al. 2022

Front. Microbiol.

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Microbial decomposition plays a crucial role in the incorporation of straw and straw biochar (SSB) into soil. Lime concretion black soil (LCBS) is a typical low-medium crop yield soil, and it is also one of the main soil types for grain production in China. However, the link between SSB additions and soil bacterial communities in LCBS remains unclear. This study explored the effects of SSB incorporation on bacterial community composition, structure and co-occurrence network patterns at different soil depths and maize growth stages. The results showed that soil PH, soil organic matter and total nitrogen significantly affected the seasonality and stratification of the soil bacterial community. The composition and diversity of bacterial communities were significantly affected by growth period and treatment rather than soil depth. Specifically, the bacterial community diversity increased significantly with crop growth at 0–20 cm, decreased the relative abundance of Actinobacteria, and increased the relative abundance of Proteobacteria and Acidobacteria. SF (straw with fertilizer) and BF (straw biochar with fertilizer) treatments decreased bacterial community diversity. Co-occurrence networks are more complex in BF, S (straw), and SF treatments, and the number of edge network patterns is increased by 92.5, 40, and 60% at the maturity stage compared with F (fertilizer) treatment, respectively. Moreover, the positive effect of straw biochar on the bacterial network pattern increased with time, while the effect of straw weakened. Notably, we found that rare species inside keystone taxa (Gemmatimonadetes and Nitrospirae) play an indispensable role in maintaining bacterial network construction in LCBS. This study offers a comprehensive understanding of the response of soil bacterial communities to SSB addition in LCBS areas, and provides a reference for further improvement of LCBS productivity.

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Section: Discussionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Response of bacterial community composition and co-occurrence network to straw and straw biochar incorporation

Zhang²,

Wang³

et al. 2022

Front. Microbiol.

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“…The decomposition of straw and SCS causes the release of nutrients into the soil. Depending on the rate of decomposition, nutrient release can stimulate different levels of soil microbial diversity and richness [ 39 , 40 ]. In this study, the diversity and abundance of soil bacteria and fungi were lower in the CM treatment than in the CK treatment in the seedling, vegetative, and physiological maturity stages.…”

Section: Discussionmentioning

confidence: 99%

Straw Soil Conditioner Modulates Key Soil Microbes and Nutrient Dynamics across Different Maize Developmental Stages

Zhang,

Ye,

Chang

et al. 2024

Microorganisms

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Soil amendments may enhance crop yield and quality by increasing soil nutrient levels and improving nutrient absorption efficiency, potentially through beneficial microbial interactions. In this work, the effects of amending soil with straw-based carbon substrate (SCS), a novel biochar material, on soil nutrients, soil microbial communities, and maize yield were compared with those of soil amendment with conventional straw. The diversity and abundance of soil bacterial and fungal communities were significantly influenced by both the maize growth period and the treatment used. Regression analysis of microbial community variation indicated that Rhizobiales, Saccharimonadales, and Eurotiales were the bacterial and fungal taxa that exhibited a positive response to SCS amendment during the growth stages of maize. Members of these taxa break down organic matter to release nutrients that promote plant growth and yield. In the seedling and vegetative stages of maize growth, the abundance of Rhizobiales is positively correlated with the total nitrogen (TN) content in the soil. During the tasseling and physiological maturity stages of corn, the abundance of Saccharimonadales and Eurotiales is positively correlated with the content of total carbon (TC), total phosphorus (TP), and available phosphorus (AP) in the soil. The results suggest that specific beneficial microorganisms are recruited at different stages of maize growth to supply the nutrients required at each stage. This targeted recruitment strategy optimizes the availability of nutrients to plants and ultimately leads to higher yields. The identification of these key beneficial microorganisms may provide a theoretical basis for the targeted improvement of crop yield and soil quality. This study demonstrates that SCS amendment enhances soil nutrient content and crop yield compared with conventional straw incorporation and sheds light on the response of soil microorganisms to SCS amendment, providing valuable insights for the future implementation of this material.

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“…This is because oyster shell powder can strengthen the adsorption and retention of the fertilizer in the soil due to its own porous structure, reduce the fertilizer entering the liquid phase in the soil, inhibit the loss of nutrients, and improve the utilization rate of the fertilizer. The application of biochar, in terms of soil nutrient leaching, has become a hot research topic (Rubin et al 2020;Ukwattage et al 2020;Partovi et al 2021); there are also a few reports on the practical application of oyster shell powder in this field. Biochar can reduce soil nutrient leaching loss through adsorption and the formation of aggregates in the soil (Xiao and Meng 2020), but the adjustment of acidity is not as obvious as that observed by the application of waste oyster shell powder, nor can it supplement Ca 2+ in the soil simultaneously.…”

Section: Effect Of Different Oyster Shell Powder Application Amounts On Leaching Characteristics Of Nutrients In Latosolmentioning

confidence: 99%

Effects of Oyster Shell Powder on Leaching Characteristics of Nutrients in Latosol

Yang

Huang

Liu

et al. 2022

Preprint

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In this study, we analyzed the effect of oyster shell powder of different proportions on the nutrient leaching characteristics of latosol, using an indoor soil column simulation test. Based on the optimized fertilizer application amount, we tested five different amounts of oyster shell powder in the test [0 % (control, CK), 0.1 % (T1), 0.2 % (T2), 0.4 % (T3), and 0.8 % (T4)] for analyzing the intermittent and dynamic leaching characteristics of nutrients in the soil samples. The results indicated that the loss of nutrients in urea, superphosphate, and potassium chloride (due to leaching) increased linearly with the amount of fertilizer. By adding oyster shell powder, the leaching loss reduced by 23.90–57.25 % for ammonium nitrogen, 6.31–10.07 % for phosphorus, and 17.08–26.58 % for potassium. However, the leaching loss for nitrate nitrogen increased by 2.5–5.8 times. In addition, the application of oyster shell powder to latosol provided acid adjustment and water retention enhancement, which increased the pH value of the soil by 3.77 (from pH 4.15 to 7.92) and reduced water loss by 2.52 %. Thus, the application of oyster shell powder can reduce the acidity of the surface soil and retain water and fertilizer to a certain extent; however, it may increase the potential risk of nitrate nitrogen pollution in groundwater.

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Effects of applying biochar and straw on nitrate leaching and maize yield production

Cited by 9 publications

References 29 publications

Response of bacterial community composition and co-occurrence network to straw and straw biochar incorporation

Response of bacterial community composition and co-occurrence network to straw and straw biochar incorporation

Straw Soil Conditioner Modulates Key Soil Microbes and Nutrient Dynamics across Different Maize Developmental Stages

Effects of Oyster Shell Powder on Leaching Characteristics of Nutrients in Latosol

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