The Effect of Different Doses of N Fertilization on the Parameters of Soil Organic Matter and Soil Sorption Complex

Šimanský, Vladimí­r; Kováčik, Peter; Jończak, Jerzy

doi:10.12911/22998993/69366

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…In a previous study, cation exchange capacity was not influenced by nitrogen doses [32] or NPK fertilization [33]. According to Šimanský et al [34], statistically significant changes in CEC values occur only at certain doses of nitrogen fertilization. In the present study, changes in the contents of BC were closely related to cation exchange capacity (r = 0.570).…”

Section: Resultsmentioning

confidence: 88%

The Mineral Fertilizer-Dependent Chemical Parameters of Soil Acidification under Field Conditions

et al. 2020

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Soil acidification in agroecosystems is a natural process that could be accelerated, mainly by the inappropriate application of mineral fertilizers, or prevented, by sustainable management practices. On the basis of a three-year field study in a grassland agroecosystem, the impact of different rates of fertilization with nitrogen (N), phosphorus (P), and potassium (K) on soil chemical parameters related to soil acidity was evaluated. It was found that high-rate fertilization with ammonium nitrate accelerated the soil acidification process, which was additionally intensified by the application of superphosphate and potassium salt. The sum of exchangeable base cations, the values of base saturation and hydrolytic acidity in the soil reflected the interactions between the applied NPK-fertilizer levels. Considering chemical parameters related to soil acidity studied in this experiment, it seems that the best strategies for mitigating soil acidification in grasslands are reducing nitrate leaching, changing fertilizer types and increasing the input of base cations.

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Section: Resultsmentioning

confidence: 88%

The Mineral Fertilizer-Dependent Chemical Parameters of Soil Acidification under Field Conditions

et al. 2020

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“…Conversely, the N3 treatment had 8.1% and 45.8% lower SOC and SOCSR, respectively, than the N2 treatment (Tables 2 and S2). This could be attributed to the fact that inorganic N application rate may alter the partitioning of C and soil organic matter dynamics by affecting biodegradability, as well as the quantity and quality of crop residues (Man et al, 2021; Šimanský et al, 2017). The early stages of decomposition of C‐rich plant litter were limited by N limitation.…”

Section: Discussionmentioning

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

Liu

Cai

et al. 2023

Geoderma

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The Effect of Different Doses of N Fertilization on the Parameters of Soil Organic Matter and Soil Sorption Complex

Cited by 5 publications

References 26 publications

The Mineral Fertilizer-Dependent Chemical Parameters of Soil Acidification under Field Conditions

The Mineral Fertilizer-Dependent Chemical Parameters of Soil Acidification under Field Conditions

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

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

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