Meta-analysis on the effects of types and levels of N, P, and K fertilization on organic carbon in cropland soils

Liu, Yuhuai; Li, Chuan; Cai, Giampiero; Sauheitl, Leopold; Xiao, Mouliang; Shibistova, Olga; Ge, Tida; Guggenberger, Georg

doi:10.1016/j.geoderma.2023.116580

Cited by 21 publications

(10 citation statements)

References 91 publications

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“…Note:# Categorised the size of the mineral fertiliser: distinguishing between low (<100, 20, and 50 kg ha -1 year -1), intermediate (100-300, 20-60, and 50-150 kg ha -1 year -1), and high (>300, 60, and 150 kg ha -1 year -1) levels of N, P, and K, respectively, to explain the categories of mineral fertiliser intensity of the effect size with regard to the effects of fertilisation quantity [22].…”

Section: Methodsmentioning

confidence: 99%

“…Fertilisation enhances crop yield and returns plant residue to the soil. The fertilisation rate affects the effects of minerals N, P, and K [22]. Adapted fertilisation enhances soil microb and SOC [23].…”

Section: Introductionmentioning

confidence: 99%

“…Adapted fertilisation enhances soil microb and SOC [23]. The C:nutrient ratio is crucial for organic fertilisation, and additional dressings are required for lowquality substrates [22]. Balancing nutrient stoichiometry increases soil microbial carbon but does not increase carbon use efficiency (Sinsabaugh Fang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Decreasing Soil Organic Carbon in Maize Cultivated Soil in Lowland Northern Thailand: Evidenced by the Interactions between Nutrients and Dissolved Organic Carbon

Aumtong,

Chotamonsak,

Lapyai

2024

Preprint

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.Maize cultivation in Thailand faces challenges owing to climate change and soil organic carbon (SOC) loss. This highlights the importance of comparing maize soil with paddy soil in terms of the role of dissolved organic carbon (DOC) and nutrient availability, as they influence SOC content. Soil samples from Chiang Mai province, primarily Fluvisol, were collected for the cultivation of paddy rice and maize, analysed for carbon fractions and chemical properties, and categorised into layers. Comparative analysis revealed that maize soils had lower levels of labile carbon components and organic carbon than paddy soils (P

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Decreasing Soil Organic Carbon in Maize Cultivated Soil in Lowland Northern Thailand: Evidenced by the Interactions between Nutrients and Dissolved Organic Carbon

Aumtong,

Chotamonsak,

Lapyai

2024

Preprint

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“…worth noting that long-term application of N fertilizers has been reported to reduce microbial activity and stimulate the decomposition of cellulose-based crop residues by fungi (Hu et al, 2021;Six et al, 2006). This discrepancy may be attributed in part to variations in N application rates and years (Blagodatskaya et al, 2014;Liu et al, 2023).…”

Section: Response Of Microbial C-degrading Potential To Organic and I...mentioning

confidence: 99%

Linking microbial carbon‐degrading potential to organic carbon sequestration in fertilized soils: Insights from metagenomics

Ma,

Niu,

et al. 2023

Land Degrad Dev

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The capacity of soils to store organic carbon (SOC) is vital for agricultural productivity. Soil microorganisms exert a critical role in carbon (C) flow and potentially influence C balance through the decomposition of plant and microbial dead biomass. However, the connection between the microbial degradation potential of plant‐derived and microbial‐derived C and soil organic carbon sequestration (SOCSR) under organic and inorganic nitrogen (N) fertilization treatments remains largely unexplored using metagenomics. In this study, metagenomics was used to investigate the effects of 4 years inorganic (N1: 250 kg N ha−1 yr−1 and N3: 450 kg N ha−1 yr−1) and organic N (O1: N1 + 11,250 kg ha−1 yr−1 sheep manure and O3: N1 + 18,750 kg ha−1 yr−1 sheep manure) fertilizer application on plant biomass decomposition genes, microbial biomass decomposition genes, and microbial properties related to different sources of C decomposition (species composition and diversity). Furthermore, the study explored the relationship between organic matter decomposition genes, microorganisms, and SOCSR. The results revealed that compared with N1 treatment, the increased application of inorganic N fertilizer (N3) significantly enhanced the abundance of genes related to plant and microbial biomass decomposition and microbial diversity involved in SOC decomposition, resulting in reduced SOC content. Conversely, the increased application of organic N fertilizer (O1 and O3) had a minor effect on the abundance of genes related to different sources of C decomposition and C decomposing microbial diversity, but reduced microbial entropy (the ratio of microbial biomass carbon to SOC) and increased SOC content. The random forest model highlighted that plant biomass decomposition genes and bacterial community composition were important factors affecting SOCSR. The Mantel test also indicated that the genes involved in the decomposition of lignin, cellulose, and hemicellulose were closely related to SOCSR. These findings highlighted that increased inorganic N fertilizers greatly enhanced the microbial capacity for SOC decomposition, resulting in reduced SOC accumulation. While the increased application of organic N fertilizer increased SOC stability and reduced the mineralization potential of SOC, contributing to SOCSR. Overall, these findings provide a greater understanding of the relationship between soil C turnover and microbial C‐degrading potential under short‐term fertilization. And in a long time, they may have important implications for global strategies aimed at increasing SOCSR to restore fertility and facilitate sustainable agricultural development.

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“…However, due to carbon storage differences between land-use types, the nutrient requirements for carbon sequestration may differ between grasslands and croplands 36 . Soil carbon storage in croplands is also affected by agricultural managements practices 37 , 38 such as fertilizer rate and tillage, which may lead to different SOC responses to organic fertilization than in grasslands. It remains unclear the degree to which global grasslands and croplands differ in carbon sequestration potential under comparable organic fertilization rates.…”

Section: Introductionmentioning

confidence: 99%

A global meta-analysis on the effects of organic and inorganic fertilization on grasslands and croplands

Shi,

Collins,

et al. 2024

Nat Commun

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A central role for nature-based solution is to identify optimal management practices to address environmental challenges, including carbon sequestration and biodiversity conservation. Inorganic fertilization increases plant aboveground biomass but often causes a tradeoff with plant diversity loss. It remains unclear, however, whether organic fertilization, as a potential nature-based solution, could alter this tradeoff by increasing aboveground biomass without plant diversity loss. Here we compile data from 537 experiments on organic and inorganic fertilization across grasslands and croplands worldwide to evaluate the responses of aboveground biomass, plant diversity, and soil organic carbon (SOC). Both organic and inorganic fertilization increase aboveground biomass by 56% and 42% relative to ambient, respectively. However, only inorganic fertilization decreases plant diversity, while organic fertilization increases plant diversity in grasslands with greater soil water content. Moreover, organic fertilization increases SOC in grasslands by 19% and 15% relative to ambient and inorganic fertilization, respectively. The positive effect of organic fertilization on SOC increases with increasing mean annual temperature in grasslands, a pattern not observed in croplands. Collectively, our findings highlight organic fertilization as a potential nature-based solution that can increase two ecosystem services of grasslands, forage production, and soil carbon storage, without a tradeoff in plant diversity loss.

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Meta-analysis on the effects of types and levels of N, P, and K fertilization on organic carbon in cropland soils

Cited by 21 publications

References 91 publications

Decreasing Soil Organic Carbon in Maize Cultivated Soil in Lowland Northern Thailand: Evidenced by the Interactions between Nutrients and Dissolved Organic Carbon

Decreasing Soil Organic Carbon in Maize Cultivated Soil in Lowland Northern Thailand: Evidenced by the Interactions between Nutrients and Dissolved Organic Carbon

Linking microbial carbon‐degrading potential to organic carbon sequestration in fertilized soils: Insights from metagenomics

A global meta-analysis on the effects of organic and inorganic fertilization on grasslands and croplands

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