Chemical changes during composting of plant residues reduce their mineralisation in soil and cancel the priming effect

Lerch, Thomas Z.; Dignac, Marie-France; Thévenot, Mathieu; Mchergui, Chokri; Houot, Sabine

doi:10.1016/j.soilbio.2019.107525

Cited by 16 publications

(5 citation statements)

References 23 publications

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“…The first hypothesis of this study -namely that the addition of fresh wheat straw would stimulate PE to a greater extent than the addition of pre-decomposed wheat straw -was validated, regardless of the treatment combination. Our results are in total accordance with those of Beghin-Tanneau et al (2019) and Lerch et al (2019), who observed, in a 6-month and a 3-year experiment respectively, that a positive PE on SOM mineralization was only observed when adding undigested plant residues. This underpins that an avenue for increasing soil C stocks in cultivated soils might be to add decomposed straw residues rather than incorporating them fresh.…”

Section: Effect Of the Biodegradability Of Added Omsupporting

confidence: 93%

Temperature and soil management effects on carbon fluxes and priming effect intensity

Guttières

Nunan

Raynaud

et al. 2021

Soil Biology and Biochemistry

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Any change in the intensity and sign of CO 2 flux between soil and atmosphere is expected to have a significant impact on climate. The net emission of CO 2 by soils depends on antagonistic processes: the persistence of dead plant matter and the mineralization of soil organic matter. These two processes are partly interdependent: their interaction is known as the "priming effect" (PE), i.e. the stimulation of the mineralization of stable soil organic matter by more labile fresh organic matter.Documenting the response of PE to global change is needed for predicting long term dynamics of ecosystems and climate change, and for managing carbon cycle in order to slow down the atmospheric CO 2 increase. We have tested the effects on PE of temperature, nutrient availability, energy content of added organic matter, land use and interactions.Our results suggest that the biodegradability of the dead plant debris (wheat straw, fresh or pre-decomposed) is the first determinant of the intensity of PE, far ahead temperature and nutrients: fresh wheat straw addition induced up to 800% more CO 2 emission than predecomposed one. The raise of temperature from 15 to 20°C, increased basal soil organic matter mineralization by 38%, but had no effect on PE. Interactions between biodegradability of straw and the other factors showed that the agricultural soil was more responsive to all factors than the forest soil.We have shown in our study that the intensity of PE could be more dependent on land use and plant residue management than on other drivers of global change, particularly temperature and nutrients. There is an urgent need to assess the genericity of our results by Soil Biology & Biogeochemistry -Submitted Manuscript: Confidential testing other soil types and plant debris for a better integration of PE in models, and for identifying alternative land carbon management strategies for climate change mitigation.

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Section: Effect Of the Biodegradability Of Added Omsupporting

confidence: 93%

Temperature and soil management effects on carbon fluxes and priming effect intensity

Guttières

Nunan

Raynaud

et al. 2021

Soil Biology and Biochemistry

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“…3) and higher microbial CUEs (Appendix C). These findings are corroborated by a recent study where composted OAs demonstrated a more favourable (i. e. lower) priming effect than when applying fresh OAs (Lerch et al, 2019). However, compost likely has more gradual effects beyond the current incubation time that could offset its more favourable short-term impacts (<150 days).…”

Section: Implications Of Organic Amendment Application For Climate-sm...supporting

confidence: 77%

Relationships of priming effects with organic amendment composition and soil microbial properties

et al. 2022

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“…The application of compost products as organic fertilizers can reduce dependence on fertilizers and improve crop quality (Tubeileh and Stephenson 2020). Furthermore, compost products can be used as soil amendments to improve soil quality and agricultural productivity (Ding et al 2021;Lerch et al 2019), control soil pathogens, and promote plant growth (Monda et al 2017). The authors further reported that the application of compost increase soil aggregate stability, water-holding capacity, high nutritional value, improve organic matter, prevents the leaching of nutrients in the groundwater, and has positive effects on the overall health of the soil (Jain and Kalamdhad 2020;Willekens et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Response of wheat to combined application of nitrogen and phosphorus along with compost

Solomon

Ergudo²,

Mutum

et al. 2022

J. Crop Sci. Biotechnol.

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To achieve food security and increase crop productivity in a sustainable way, keeping soil fertile and balanced fertilization is vital. Soil fertility declining and unbalanced fertilization is one of the bottlenecks to sustainable agricultural production. To overcome these problems, a field experiment was investigated, with the aim of exploring the potential of organic and inorganic nutrient sources with their optimal application and integration for sustainable wheat production. The experiment was conducted in a factorial approach with three replications, where one factor was the level of the NP (Nitrogen and Phosphorus) fertilizer and the other compost, set in a randomized complete block design. Four levels of the N:P fertilizer (control, 27.6%:18.4%, 41.4%:32.2% and 55.2%:46%) were combined with three levels of compost (0, 3 ton/ha and 6 ton/ha), giving 12 treatments combination. From the data collected and analyzed, integrated application of the NP fertilizer and compost significantly increased soil organic carbon, total nitrogen, and available phosphorus but had no effect on soil pH and cation exchange capacity (CEC). Application of 6 ton/ha compost was higher with plant height, spike length, number of seeds per spike, 1000 seeds weight, and biological yield. The sole application of the NP (55.2%:46%) produced (6.19 ton/ha) grain yield whereas combined application of the NP (55.2%:46%) along with the compost (6 ton/ha) produced the higher grain yield (8.16 ton/ha). This clearly revealed that application of 75% recommended inorganic NP fertilizers combined with compost resulted in increased wheat yield by 27.45% over sole application of inorganic fertilizer indicated that the integrated approach could enable to save up to 25% of commercial fertilizers and increase the yield of wheat.

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Chemical changes during composting of plant residues reduce their mineralisation in soil and cancel the priming effect

Cited by 16 publications

References 23 publications

Temperature and soil management effects on carbon fluxes and priming effect intensity

Temperature and soil management effects on carbon fluxes and priming effect intensity

Relationships of priming effects with organic amendment composition and soil microbial properties

Response of wheat to combined application of nitrogen and phosphorus along with compost

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