Co-application of biochar and cattle manure counteract positive priming of carbon mineralization in a sandy soil

Dodor, Daniel E.; Amanor, Yahaya J.; Attor, Festus T.; Adjadeh, T. A.; Neina, Dora; Miyittah, Michael K.

doi:10.1186/s40068-018-0108-y

Cited by 34 publications

(20 citation statements)

References 42 publications

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“…The higher CWC, HWC, CWN, and HWN in soils amended with DMP compared with those of the sole amendment suggest a synergistic interaction between biochar and manure to form decomposable compounds that transformed into labile fractions. Similar findings were reported by Dodor et al () who observed an increased labile C in soils amended with the addition of manure–biochar mixture. The higher level of water‐soluble fractions with the DMP may be due to the addition of a higher amount of organic matter and microbial activity.…”

Section: Resultssupporting

confidence: 91%

Biochar and manure addition influenced soil microbial community structure and enzymatic activities at eroded and depositional landscape positions

et al. 2019

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Biochar and manure application can modify soil microbial community structure and enhance biochemical activities. However, the studies about the influence of biochar and manure on the microbial communities on different geomorphological landforms (depositional and eroded landscapes) are scarce. In this study, we investigated the responses of soil biochemical activities and microbial communities to the addition of pinewood biochar, dairy manure (DM), and the dairy manure and pinewood biochar mixture (DMP) at a rate of 10 Mg ha−1, respectively, in comparison with control (CNT) at eroded and depositional landscape positions over 5 years. Data showed that the DMP treatment significantly increased cold‐water‐soluble organic carbon and hot‐water‐soluble organic carbon at the depositional landscape than CNT soils. Application of DMP increased total phospholipid fatty acid (PLFA) and bacterial PLFA by 31% and 20% compared with the CNT at the depositional landscape, respectively. At eroded landscape, total PLFAs and total bacterial PLFAs biomass concentrations were found 39% and 90% higher with DM than CNT soils. The addition of DM and DMP increased the activities of enzymes that are involved in the major nutrient cycling at depositional and eroded landscapes. At the phylum level, the proportion of Bacteroidetes was found lower in DMP, but the proportion of phylum Proteobacteria and Acidobacteria were increased. In conclusion, our study revealed that DMP influenced the labile nutrient pool, altered the microbial community structure, and increased bacterial composition and enzymatic activities at both the landscape positions.

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Section: Resultssupporting

confidence: 91%

Biochar and manure addition influenced soil microbial community structure and enzymatic activities at eroded and depositional landscape positions

et al. 2019

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“…The increased TN content with manure (0.36%), liquid humus (0.31%) and compost (0.31%) amendments were noted in the previous studies [36]. Moreover, there is a TN increase in biochar (1.6 g/kg) and cattle manure (11.6 g/kg) when treated sandy soil compared to control group (0.18 g/kg) [37]. But in the present finding the high TN content was observed in BAS.…”

Section: A Effects Of Oas On Soil Physicochemical Propertiessupporting

confidence: 55%

Biochar and Other Organic Amendments Improve the Physicochemical Properties of Soil in Highly Degraded Habitat

Alemayehu¹,

Muleta²,

Assefa³

et al. 2020

EJERS

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Land degradation is an endless challenge in the world. Thus, rehabilitation with organic amendments (OAs) is an urgent priority issue. The purpose of this study is to assess the effect of biochar and other OAs application on soil physicochemical properties and growth parameters of cover crops in greenhouse. Biochar, compost and manure were used as OAs. Soil samples were collected from nine random corners of 30 cm depth and composited. In each experiment, five treatments were considered (biochar, compost, manure, mixed and control) at 1:1 ratio of OAs and soil in a pot, with completely randomized design arrangement in triplicate. The field experiment was made on completely randomized block design and each block contained five 41 x 4 m plots assigned at random within the block and separated by 1 m walkways. OAs additions increased soil pH (5.69-8.13), cation exchange capacity (43.78-49.98 cmolc/kg), organic carbon (1.41-2.46%), organic matter (2.43-3.91%), total nitrogen (0.13-0.76%), available P (18.89-28.53 ppm) and (iron, Fe, manganese, Mn, copper, Cu and zinc, Zn) in comparison to non-treated soil. Tripartite treatments had the largest effect on the biomass of cover crops with 3.43 g fivefold of the control (0.7 g) in alfalfa and 4.54 g twofold of the control (2.07 g) in grass pea p ≤ 0.05. Both in field and greenhouse experiments combination of biochar and other OAs showed a better soil fertility increment and plant growth parameters. The study concluded that there is a synergistic effect in OAs on the soil fertility restoration and plant growth performance.

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“…However, the combined effect of manure and the other soil amendment (e.g., biochar) has not been widely studied. In a few studies in which manure-derived biochar was applied to soils, a mostly positive effect was seen [33,34], but also a converse [34][35][36] effect on plant growth and soil microbial diversity was observed.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Effects of Biochar-Based Organic Amendments on Soil Microbial Parameters

et al. 2019

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Biochar application to the soil has been recommended as a carbon (C) management approach to sequester C and improve soil quality. Three-year experiments were conducted to investigate the interactive effects of three types of amendments on microbial biomass carbon, soil dehydrogenase activity and soil microbial community abundance in luvisols of arable land in the Czech Republic. Four different treatments were studied, which were, only NPK as a control, NPK + cattle manure, NPK + biochar and NPK + combination of manure with biochar. The results demonstrate that all amendments were effective in increasing the fungal and bacterial biomass, as is evident from the increased values of bacterial and fungal phospholipid fatty acid analysis. The ammonia-oxidizing bacteria population increases with the application of biochar, and it reaches its maximum value when biochar is applied in combination with manure. The overall results suggest that co-application of biochar with manure changes soil properties in favor of increased microbial biomass. It was confirmed that the application of biochar might increase or decrease soil activity, but its addition, along with manure, always promotes microbial abundance and their activity. The obtained results can be used in the planning and execution of the biochar-based soil amendments.

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Co-application of biochar and cattle manure counteract positive priming of carbon mineralization in a sandy soil

Cited by 34 publications

References 42 publications

Biochar and manure addition influenced soil microbial community structure and enzymatic activities at eroded and depositional landscape positions

Biochar and manure addition influenced soil microbial community structure and enzymatic activities at eroded and depositional landscape positions

Biochar and Other Organic Amendments Improve the Physicochemical Properties of Soil in Highly Degraded Habitat

Long-Term Effects of Biochar-Based Organic Amendments on Soil Microbial Parameters

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