Long‐term surface application of dairy liquid manure to soil under no‐till improves carbon and nitrogen stocks

Cavalcante, Jussiara Sonally Jácome; Favaretto, Nerilde; Dieckow, Jeferson; Cherobim, Verediana Fernanda; Barth, Gabriel

doi:10.1111/ejss.12920

Cited by 21 publications

(16 citation statements)

References 37 publications

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“…The POM-C stock was higher in organic systems and highest in the O-CC treatment (Figure 1A). The addition of manure showed no additional effect on POM-C stock but significantly increased in the MAOM-C stock, which was consistent with the results of previous studies [88][89][90], indicating that properties of C input influence the C stabilization into the soil as plant residues and manure were different in composition, containing different amounts of different C compounds [91,92]. The distribution of N stocks followed the same trend as for C (Figure 1B) because C and N are positively related (Figure 2).…”

Section: Fractional Composition Of Somsupporting

confidence: 92%

“…The MAOM fraction was characterized by high C and N concentrations, relative absorbances at 1409, 1635, 3401 cm −1 , and Recalc, whereas the POM was less tightly clustered but characterized by high rA1004 and Ar and a wider C/N ratio. Previous studies have shown that compared with MAOM, the microbially less processed POM should contain more polysaccharides (oxygen-rich functional groups) [75,107], more aliphatic [89], and less aromatic C [60,61,87,108,109]. In our study, in addition to aromatic C, the POM also contained less aliphatic C-H and phenolic O-H compounds (Table 8).…”

Section: Ftir Spectroscopysupporting

confidence: 50%

“…[ [88][89][90], indicating that properties of C input influence the C stabilization into the soil as plant residues and manure were different in composition, containing different amounts of different C compounds [91,92]. The distribution of N stocks followed the same trend as for C (Figure 1B) because C and N are positively related (Figure 2).…”

Section: Fractional Composition Of Sommentioning

confidence: 93%

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Soil Particulate and Mineral-Associated Organic Matter Increases in Organic Farming under Cover Cropping and Manure Addition

et al. 2021

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This study aimed to investigate the soil organic carbon (SOC) sequestration rate and soil organic matter (SOM) composition in conventional rotational cropping with mineral fertilization compared with organic cover cropping with and without composted manure addition during 2008–2018 to specify the SOM stabilization under different farming systems. The SOC proportion in particulate organic matter (POM) (63–2000 µm) and mineral-associated organic matter (MAOM) (<63 µm) fractions were estimated in different treatments, and the SOM composition in the fractions was characterized by FTIR spectroscopy. The SOC sequestration rate was treatment-dependent, with the higher SOC sequestration rate (1.26 Mg ha−1 y−1) in the organic treatment with cover crop and composted manure. Across all treatments, 57.3%–77.8% of the SOC stock was in the MAOM fraction. Mineral N fertilization increased POM-C concentration by 19%–52% compared with the unfertilized control. Under the organic treatments, the POM-C concentration was 83%–95% higher than the control. The MAOM-C concentration increased by 8%–20%. The mineral N fertilization and organic treatments (with and without cover crops and composted manure) increased the SOC stock proportion of POM. The highest proportion of SOC stock related to POM was in the cover cropping system, reducing the proportion of C related to the MAOM fraction, but the addition of composted manure with cover cropping also increased the proportion of C in MAOM. Compared with MAOM, the POM had a less resistant organic matter composition, and the POM resistance was higher in organic than conventional treatments. In general, the recalcitrance of SOM increased with SOC concentration. The POM fraction had higher aromaticity (or degree of decomposition) than the MAOM fraction. The aromaticity in POM and MAOM fractions was higher in the organic farming system and depended on mineral N fertilization and cover cropping, but the effect of manure was not significant. Although the SOC sequestration rate was higher under manure addition, resulting in the highest formation of both POM and MAOM in the soil, manure addition had little effect on overall SOM composition compared with cover crops.

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Section: Fractional Composition Of Somsupporting

confidence: 92%

Section: Ftir Spectroscopysupporting

confidence: 50%

Section: Fractional Composition Of Sommentioning

confidence: 93%

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Soil Particulate and Mineral-Associated Organic Matter Increases in Organic Farming under Cover Cropping and Manure Addition

et al. 2021

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“…This aligns with other research, including meta-analysis by Gattinger et al, [70] who found that annual carbon inputs from organic fertilizers influence the organic matter and carbon sequestration gains observed in agricultural soils. Additionally, surface applied dairy liquid manure in no-till cropping systems has been observed to increase soil carbon stocks and aggregation [71].…”

Section: Biophysical Outcomesmentioning

confidence: 99%

Measuring the Supply of Ecosystem Services from Alternative Soil and Nutrient Management Practices: A Transdisciplinary, Field-Scale Approach

et al. 2021

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Farmers and policy makers pursue management practices that enhance water quality, increase landscape flood resiliency, and mitigate agriculture’s contribution to climate change, all while remaining economically viable. This study presents a holistic assessment of how two practices influence the supply of these ecosystem services—the use of an aerator prior to manure application in haylands, and the stacked use of manure injection, cover crops, and reduced tillage in corn silage production. Field data are contextualized by semi-structured interviews that identify influences on adoption. Causal loop diagrams then illustrate feedbacks from ecosystem services onto decision making. In our study, unseen nutrient pathways are the least understood, but potentially the most important in determining the impact of a practice on ecosystem services supply. Subsurface runoff accounted for 64% to 92% of measured hydrologic phosphorus export. Average soil surface greenhouse gas flux constituted 38% to 73% of all contributions to the equivalent CO2 footprint of practices, sometimes outweighing carbon sequestration. Farmers identified interest in better understanding unseen nutrient pathways, expressed intrinsic stewardship motivations, but highlighted financial considerations as dominating decision making. Our analysis elevates the importance of financial supports for conservation, and the need for comprehensive understandings of agroecosystem performance that include hard-to-measure pathways.

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“…(b) The studies on NT in combination with manure, residue retention or phosphogypsum applications were carried out at Brazilian and Chinese sites. Cavalcante, Favaretto, Dieckow, Cherobim, & Barth (2020) reported for a 10‐year crop rotation system on a Brazilian Ferralsol that the application of dairy liquid manure (0, 60, 120 and 180 m 3 ·ha −1 ·year −1 ) in NT soils increased C and N stocks up to 17 and 27% in the top 10 cm of the soil profile. Soil physical conditions were improved and were related to organic matter changes.…”

Section: Assessment Of Nt Impacts In Combination With Grazing Fertilmentioning

confidence: 99%

Editorial for the special issue on “opportunities and challenges in no‐till farming”

Menon

Sarkar

Crotty

et al. 2020

European J Soil Science

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Editorial for the special issue on "opportunities and challenges in no-till farming" This special issue was initiated after the 21st World Congress of Soil Science held in Rio de Janeiro in 2018 by inviting presenters (also open to all) from the session titled "Contribution of zero tillage (no-till, NT) to sustainable use and management of soils (C.3.3.7)". Zero tillage or NT is an important conservation tillage practice in which soil disturbance is kept to a minimum, and the soil is usually covered with 30-100% plant residues. Although it provides several advantages, the uptake of NT is not uniform across the world. Thus, this special issue aimed to publish the state of the art on NT and its influence on biogeochemical and greenhouse gas emissions, soil micro-and macrofauna, soil physical and hydraulic properties, and soil and crop management at different spatial and temporal scales. The 16 accepted articles of this special volume can be broadly divided into two main groups. The first group consists of specific NT impacts on physical, chemical and biological properties of soils, and the second group focuses on combined assessments (i.e., the assessment of NT impacts in combination with grazing, fertilization and cropping).

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Long‐term surface application of dairy liquid manure to soil under no‐till improves carbon and nitrogen stocks

Cited by 21 publications

References 37 publications

Soil Particulate and Mineral-Associated Organic Matter Increases in Organic Farming under Cover Cropping and Manure Addition

Soil Particulate and Mineral-Associated Organic Matter Increases in Organic Farming under Cover Cropping and Manure Addition

Measuring the Supply of Ecosystem Services from Alternative Soil and Nutrient Management Practices: A Transdisciplinary, Field-Scale Approach

Editorial for the special issue on “opportunities and challenges in no‐till farming”

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