Organic amendment effects on cropland soil organic carbon and its implications: A global synthesis

Bai, Xiongxiong; Jiao, Tifeng; Wang, Sheng; Ma, Jing; Shi, Jian; Ren, Wei

doi:10.1016/j.catena.2023.107343

Cited by 9 publications

(3 citation statements)

References 94 publications

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“…Although organic fertilizers do not provide more nutrients compared to chemical fertilizers, they need to be transformed and degraded before being taken up by plants compared to chemical fertilizers, which may be one of the driving factors for changes in soil microbial communities. At the same time, the neutral and alkaline nature of organic fertilizers prepared by the fermentation of manure or straw may limit the microbial activity in the original soil and the rate of decomposition of the organic matter, which is ultimately sequestered in the soil, while ensuring the supply of nutrients during the growing season and preventing nutrient loss 42 , 43 . In addition, the results of this study showed that the three fertilization measures, N, NP, and NPK without the application of organic fertilizers, increased the organic matter content of the soil from 2.36 to 14.62% compared to no fertilization (Fig.…”

Section: Discussionmentioning

confidence: 99%

Effects of different fertilization practices on maize yield, soil nutrients, soil moisture, and water use efficiency in northern China based on a meta-analysis

Jiang,

Dong,

Bian

et al. 2024

Sci Rep

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The application of fertilizer to ensure the steady improvement of crop yield has become the main means of agricultural production. However, it remains to be determined whether fertilization practices with different combinations of nitrogen (N), phosphorus (P), potassium (K), and organic (O) fertilizers play a positive role in the sustainability of maize yield and the soil in which it is grown. Therefore,this meta-analysis extracted 2663 data points from 76 studies to systematically analyze and explore the effects of different fertilization measures on maize yield, soil nutrients, water content and water use efficiency (WUE) in northern China. Articles addressing this topic showed that fertilization effectively increased the soil nutrient content and maize yield. The soil organic matter (SOM) increased by 2.36 (N)–55.38% (NPO), total nitrogen content increased by 6.10 (N)–56.39% (NPO), available phosphorus content increased by 17.12 (N)–474.74% (NPO), and available potassium content changed by − 2.90 (NP)–64.40% (NPO). Soil moisture increased by 3.59% under a single organic fertilizer application and decreased by 4.27–13.40% under the other treatments. Compared with no fertilization, the yield increase of fertilized maize reached 11.65–220.42%. NP, NPK and NPKO contributed the most to increased yield in lithological, black and fluvo-aquic soils, respectively. The effects of different fertilization practices on maize yield varied in response to the same meteorological factors. The WUE increased from 9.51 to 160.72%. In conclusion, rational fertilization can improve the soil nutrient content and increase maize yield. The combined application of chemical and organic fertilizer showed the greatest increase in yield and WUE. Organic fertilizer application alone increased soil moisture. Our results provide a theoretical basis for fertilizer application and for improving the soil structure for maize cultivation in northern China.

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Section: Discussionmentioning

confidence: 99%

Effects of different fertilization practices on maize yield, soil nutrients, soil moisture, and water use efficiency in northern China based on a meta-analysis

Jiang,

Dong,

Bian

et al. 2024

Sci Rep

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“…Our study also confirmed that the application of manure fertilizer had positive effects on SOC, DOC, and MBC, especially evident in low organic matter areas in the northern ecotone of China (Table 1). The rich nutrients of organic fertilizers were decomposed through microorganisms to slow nutrient release, and subsequently increased the nutrient pool of soil (TN, NO − 3 -N, AP, and AK) [54][55][56]. Similarly, the authors of [57] found that organic fertilizer addition improved nitrogen (N) and phosphorus (P) efficiency by increasing soil organic matter and available nutrients in the oasis region of Northwest China.…”

Section: Effect Of Fertilization On Soil Propertiesmentioning

confidence: 99%

Multiple Soil Health Assessment Methods for Evaluating Effects of Organic Fertilization in Farmland Soil of Agro-Pastoral Ecotone

Lu,

Ma,

Chen

et al. 2024

Agriculture

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The incorporation of organic fertilizer is an important practice to improve the sustainability and productivity of crop production and decrease environmental pollution from crop-livestock systems in global agriculture. However, establishing an evaluation dataset is still the main challenge for quickly and effectively assessing the effect of management measures on farmland soil health. Hereby, we developed a minimum dataset (MDS) using three methods (network analysis (NA), random forest analysis (RF), and principal component analysis (PCA)). Based on MDS and two scoring functions (nonlinear (NL) and linear scoring curve (L)), the SHI (soil health index framework) was constructed to assess soil health conditions under four fertilization treatments (no fertilization, CK; only chemical fertilizer, NPK; only cow manure, MF; 50% chemical fertilizer + 50% cow manure, NPKM) in the northern ecotone of China. The results showed that the MDS-based on SHIs were positively correlated with each other and SHI-TDS (total dataset), verifying the consistency of soil health assessment models. Higher R2 was observed in the fitting of SHIs based on NA and TDS, which suggested that nMDS (minimum dataset based on network analysis) could represent most of the information in the TDS. The SHI-NL-nMDS (based on network analysis and nonlinear scoring curve) has the highest ability of sensitivity and accuracy, which indicates that compared with PCA and RF, the SHI based on NA can better embody farmland sol ecosystem functions. In addition, crop yield was significantly positive relative to SHI (soil health index). The incorporation of cow manure and chemical fertilizer improved soil health and increased crop yield. These results indicate that network analysis was a reliable technology for determining the minimum dataset in the evaluation of farmland soil health, and incorporating livestock manure could improve soil health and crop yield in this study area.

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“…If manure inputs were combined with N mineral fertilizers, the SOC accumulation was even greater. There are also studies showing no or adverse effects on SOM [15]. Therefore, according to some authors [14,15], there is a need for further research under local management and environmental conditions concerning the magnitude of change in SOC stocks as the result of manure application.…”

Section: Introductionmentioning

confidence: 99%

Selected Carbon and Nitrogen Compounds in a Maize Agroecosystem under the Use of Nitrogen Mineral Fertilizer, Farmyard Manure, Urease, and Nitrification Inhibitors

Skowrońska,

Kuśmierz,

Walczak

2024

Agriculture

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Carbon and nitrogen compounds in agroecosystems have attracted much attention in recent years due to their key roles in crop production and their impacts on environment quality and/or climate change. Since fertilization profoundly disrupted the C and N cycles, several mitigation and/or adaptation strategies, including the application of farmyard manure (FYM) and/or urease and nitrification inhibitors (UI and NI), have been developed. The aim of this study was to evaluate the contents of soil organic carbon and its fractions, the total and mineral forms of nitrogen, as well as CO2 and N2O emissions under mineral and organic fertilization with and without urease and nitrification inhibitors in a maize agroecosystem. A two-year field study was carried out on Cambisols (silt) in Poland. The experiment scheme included nine treatments: C (the control without fertilization), UAN (Urea Ammonium Nitrate), UAN+UI, UAN+NI, UAN+UI+NI, FYM with N mineral fertilizer base, FYM with N mineral fertilizer base+UI, FYM with N mineral fertilizer base+NI, and FYM with N mineral fertilizer base+UI+NI. It was found that treatments fertilized with cattle FYM were higher sinks and sources of C and N compounds in comparison to the UAN plots. The organic carbon, humic and humin acid, and total nitrogen concentrations, in contrast to ammonium and nitrate nitrogen, were not affected by the inhibitors added. Nitrification and urease inhibitors were effective in decreasing N2O emissions only in treatments that were exclusively applied with UAN and had no significant influence on CO2 emissions.

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Organic amendment effects on cropland soil organic carbon and its implications: A global synthesis

Cited by 9 publications

References 94 publications

Effects of different fertilization practices on maize yield, soil nutrients, soil moisture, and water use efficiency in northern China based on a meta-analysis

Effects of different fertilization practices on maize yield, soil nutrients, soil moisture, and water use efficiency in northern China based on a meta-analysis

Multiple Soil Health Assessment Methods for Evaluating Effects of Organic Fertilization in Farmland Soil of Agro-Pastoral Ecotone

Selected Carbon and Nitrogen Compounds in a Maize Agroecosystem under the Use of Nitrogen Mineral Fertilizer, Farmyard Manure, Urease, and Nitrification Inhibitors

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