scholarly journals Effects of Organic Wastes on Soil Organic Carbon and Surface Charge Properties in Primary Saline-alkali Soil

2019 ◽  
Vol 11 (24) ◽  
pp. 7088
Author(s):  
Xiaodong Chen ◽  
Jinggui Wu ◽  
Yaa Opoku-Kwanowaa
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Surface Charge ◽  
Organic Waste ◽  
Organic Wastes ◽  
Chemical Fertilizer ◽  
The Other ◽  
Corn Straw ◽  
Alkali Soils ◽  
Alkali Soil

High salinity and low fertility have restricted crop production in primary saline-alkali soils. Soil organic carbon (SOC) and surface charge characteristics affect the soil fertility and soil colloid characteristics of primary saline-alkali soils, respectively. In this paper, the SOC and surface charge properties of primary saline-alkaline soil under organic wastes applications were assessed. Five treatments were involved in this experiment: chemical fertilizer combined with sheep manure (SM), corn straw (CS), fodder grass (FG), and granular corn straw (GS), while chemical fertilizer only was used as control (CK). The content of SOC was significantly different under different organic wastes application (p < 0.05). Treatment GS recorded the highest content of SOC compared with the other treatments. In addition, the content of each SOC density fraction increased after the application of organic wastes. Similarly, the application of organic wastes, increased the proportion of organic carbon in free light fraction (Fr-FLOC) and organic carbon in occluded fraction (Oc-FLOC) in the soil however the proportion of organic carbon in heavy fraction (HFOC) decreased. In this study, we found that treatment GS has a greater impact on soil surface charge properties than other treatments, and through redundancy analysis (RDA) the content of SOC and Fr-LFOC (F = 24.704, p = 0.004; F = 19.594, p = 0.002) were identified as the main factors affecting the surface charge properties of soil organic carbon. In conclusion, GS is the recommended organic waste for ameliorating primary saline-alkali soil, as compared to the other organic waste treatments.

scholarly journals Soil Organic Carbon and Nitrogen Decomposition in Fecal Manure of Cattle Fed Browse/Maize Silages

2014 ◽  
Vol 3 (3) ◽  
pp. 50
Author(s):  
Habib Kato ◽  
Robert Mulebeke ◽  
Felix Budara Bareeba ◽  
Elly Nyambobo Sabiiti
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
The Other ◽  
Organic N ◽  
Calliandra Calothyrsus ◽  
Maize Silage ◽  
Protein Nitrogen ◽  
Microbial Decomposition ◽  
Organic C ◽  
Soil Microbial

<p>Soil organic carbon (C) and nitrogen (N) decomposition in fecal manure of cattle fed browses of Calliandra (<em>Calliandra calothyrsus</em>), Gliricidia (<em>Gliricidia sepium</em>) and Leucaena (<em>Leucaena leucocephala</em>) browse/maize silage mixtures and maize (<em>Zea mays</em>) silage alone when applied to the soil were investigated in a pot experiment in comparison to the corresponding silages fed. Maize silage alone had the lowest N and a larger C: N ratio, making it a poor quality compost when applied to the soil, but compared to the browse/maize silage mixtures it had the highest level of soluble N as non-protein nitrogen (NPN) which makes much of its N available for soil microbial decomposition of its organic C. Calliandra browse/maize silage mixture had the highest level of fiber-bound N (ADFN), which reduces N availability for soil microbial decomposition of its organic C in spite of its high N content and a narrower C: N ratio. Fecal manure from maize silage alone had a lower level of N and a wider C: N ratio than fecal manure from the other silages fed which would affect its decomposition in the soil, but it had the lowest level of ADFN and much of its N is made available for soil microbial decomposition of its organic C. Soil samples after 12 weeks of the experiment showed that Calliandra browse/maize silage mixture maintained the highest level of C in the soil, while maize silage alone maintained the lowest level. Also soils treated with fecal manure from the other browse/maize silage mixtures maintained higher levels of C than fecal manure from maize silage alone. Organic C levels were lowest at 8 weeks of the experiment for all treatments and rose to the original levels at 12 weeks which could have been as a result of biotic and hydrologic factors coupled with soil aggregation. Decomposition of organic N followed a similar trend as organic C. The two elements are linked in both plant inputs in the soil and in the eventual soil humic substances. The soils treated with browse/maize silage mixtures maintained C: N ratios that were similar to that of the control soil and higher than those of the fecal manure treatments. Thus, in spite of the added silage materials to the soil, rapid decomposition of organic C could not occur to reflect benefits of adding the silage materials to the soil. Thus, fecal manure, particularly from feeding animals on browse/forage diets is more beneficial in the soil as it would decompose more readily releasing the plant nutrients they contain.</p>

Influences of repeated application of organic waste products on soil organic carbon content and stability assessed using Rock-Eval 6® thermal analysis

2020 ◽  
Author(s):  
Amicie Delahaie ◽  
Pierre Barré ◽  
Lauric Cécillon ◽  
François Baudin ◽  
Camille Resseguier ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Organic Matter ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Organic Waste ◽  
Waste Products ◽  
Clear Effect ◽  
Wide Range ◽  
Rock Eval ◽  
The Impact

&lt;p&gt;The term Organic Waste Products (OWPs) encompasses a wide range of byproducts such as manure, sewage sludge or green waste compost. The use of OWPs impacts soil quality and functioning, agricultural yields, carbon (C) sequestration, biogeochemical cycles of nutrients like nitrogen (N) or phosphorus, and organic matter (OM) dynamics. These impacts likely depend on the considered OWP.&lt;/p&gt;&lt;p&gt;Taking advantage of 3 mid to long-term experimental trials (6 to 20 years) located in the Northern part of France (Paris region; Brittany; Alsace), we investigated the impact of 16 different OWPs on C content and stability. To do so, surface soil samples from replicated plots amended with the different OWPs used either alone or in addition with mineral N fertilization and appropriated control treatments were analyzed using Rock-Eval 6&amp;#174; thermal analyses. Samples taken up at the onset of the experiment and after 6, 18 and 20 years for the 3 sites respectively were analyzed. It resulted in the analyses of 248 different samples whose Rock-Eval 6&amp;#174; (RE6) signature can be used as a proxy for soil organic carbon (SOC) biogeochemical stability. In particular, we determined 2 RE6 parameters that were related to SOC biogeochemical stability in previous studies (e.g. Barr&amp;#233; et al., 2016): HI (the amount of hydrogen-rich effluents formed during the pyrolysis phase of RE6; mgCH.g&lt;sup&gt;-1&lt;/sup&gt; SOC), and T50 CO&lt;sub&gt;2&lt;/sub&gt; oxidation (the temperature at which 50% of the residual organic C was oxidized to CO&lt;sub&gt;2&lt;/sub&gt; during the RE6 oxidation phase; &amp;#176;C). We also computed the amount of centennially stable SOC from RE6 parameters using the model developed in C&amp;#233;cillon et al. (2018). &amp;#160;&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;&lt;p&gt;Our results showed that no clear effect of OWPs addition can be established for the youngest site (6 years). On the contrary, OWPs amendments had a clear effect on SOC quantity and quality at the sites having experienced 18 and 20 years of OWPs addition. For these sites, OWPs amendments increased SOC content, decreased SOC thermal stability (T50 CO&lt;sub&gt;2&lt;/sub&gt; oxidation) and increased the Rock-Eval 6&amp;#174; Hydrogen Index (HI) compared to control plots. OWPs amendments tended to increase slightly the amount of centennially stable SOC at the sites having experienced 20 years of repeated OWPs application. Our results suggest that if OWPs addition does increase SOC content, at least in the long run, the majority of this additional SOC is labile and may be quickly lost if OWPs additions are stopped.&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;&lt;p&gt;References:&lt;/p&gt;&lt;p&gt;Barr&amp;#233; P., Plante A.F., C&amp;#233;cillon L., Lutfalla S., Baudin F., Bernard S., Christensen B.T., Eglin T., Fernandez J.M., Houot S., K&amp;#228;tterer T., Le Guillou C., Macdonald A., van Oort F. &amp; Chenu C. (2016) The energetic and chemical signatures of persistent soil organic matter. Biogeochemistry, 130: 1-12.&lt;/p&gt;&lt;p&gt;C&amp;#233;cillon L., Baudin F., Chenu C., Houot S., Jolivet R., K&amp;#228;tterer T., Lutfalla S., Macdonald A.J., van Oort F., Plante A.F., Savignac F., Souc&amp;#233;marianadin L.N. &amp; Barr&amp;#233; P. (2018) A model based on Rock-Eval thermal analysis to quantify the size of the centennially persistent organic carbon pool in temperate soils. Biogeosciences, 15, 2835-2849.&lt;/p&gt;

Short-term responses of soil organic carbon and its labile fractions to different manure Nitrogen input in a double-cropping rice field

2020 ◽  
Vol 158 (1-2) ◽  
pp. 119-127
Author(s):  
Haiming Tang ◽  
Xiaoping Xiao ◽  
Chao Li ◽  
Xiaochen Pan ◽  
Kaikai Cheng ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Carbon ◽  
Southern China ◽  
Organic Manure ◽  
Chemical Fertilizer ◽  
Organic C ◽  
Double Cropping ◽  
Labile C ◽  
Soc Stocks

AbstractChanges in soil bulk density (BD), soil organic carbon (SOC) content, SOC stocks and soil labile organic C fractions (mineralizable C (Cmin), microbial biomass C (MBC), dissolved organic C (DOC), particulate organic C (POC), light fraction organic C (LFOC) and permanganate oxidizable C (KMnO4-C)) were explored over 3 years in a double-cropping rice system of southern China. Five organic and inorganic nitrogen (N) inputs were used: (1) 100% from chemical fertilizer (M0), (2) 30% from organic manure, 70% from chemical fertilizer (M30), (3) 50% from organic manure, 50% from chemical fertilizer (M50), (4) 100% from organic manure (M100) and (5) without N fertilizer input, as control (CK). All organic manure treatments decreased BD significantly in the 0–20 cm soil layer compared with CK. The SOC content and stocks with organic manure were significantly higher than in M0 or CK; also, the cumulative amount of SOC stocks in M30 and M50 increased at the plough layer, compared with CK. The non-labile C content increased significantly and the percentage of labile C were significantly higher with organic manure application than in M0 or CK. The soil carbon management index (CMI) also increased significantly under the application of organic manure. Therefore, application of organic manure can increase the pool of stable C in surface layers, and increase content and percentage of labile C. Based on soil carbon storage and CMI, the combined application of 30 or 50% N of organic manure with chemical fertilizer improves carbon cycling services and soil quality in southern China paddy soil.

scholarly journals Soil organic carbon in a toposequence in the semiarid of Paraíba, Brazil

2020 ◽  
Vol 9 (5) ◽  
pp. e164953365
Author(s):  
Cheila Deisy Ferreira ◽  
Francisco Tibério de Alencar Moreira ◽  
Patrícia Carneiro Souto ◽  
Lyanne dos Santos Alencar ◽  
César Henrique Alves Borges
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Soil Analysis ◽  
Superficial Layer ◽  
The Other ◽  
Organic Carbon Content ◽  
Physical And Chemical ◽  
Upper Third

Organic carbon is a sensible indicator to evaluate the environmental quality of the soil. The objective of this study was to evaluate the organic carbon content of the soil in a toposequence in Serra do Teixeira, municipality of Teixeira, PB. Soil samples were collected in the upper third (UT), upper middle third (UMT), lower middle third (LMT) and lower third (LT) on three depths (0-5, 5-10 and 10-20 cm), with five replicates for each depth, resulting in a total of 60 samples. The organic carbon was evaluated using the methodology of Walkey-Black. Physical and chemical soil analysis were also carried out. The highest mean of carbon content was found in the first 5 cm (19.83 g dm-3), significantly differing from the other depths. It was also observed that the mean content of soil organic carbon on LMT was significantly higher than the other thirds, with 19.39 g dm-3. It is concluded that the highest contents of organic carbon are found on the most superficial layer of the soil. The organic carbon content variations found along the toposequence indicates influence of the relief and the anthropic action.

scholarly journals Potential resources of organic raw materials in Ukraine and the approaches to their management for increasing soil organic carbon stocks

2021 ◽  
Vol 110 (2) ◽  
pp. 45-53
Author(s):  
Ie. Skrylnyk ◽  
◽  
V. Hetmanenko ◽  
А. Kutova ◽  
V. Moskalenko ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Organic Waste ◽  
Raw Materials ◽  
Carbon Stocks ◽  
Organic Fertilizers ◽  
Humus Formation ◽  
Climatic Zones ◽  
Soil Organic Carbon Stocks ◽  
Humus Accumulation

Ie. Skrylnyk, V. Hetmanenko, А. Kutova, V. Moskalenko. Potential resources of organic raw materials in Ukraine and the approaches to their management for increasing soil organic carbon stocks The available resources of organic raw materials for replenishment of organic carbon in soils in various soil and climatic zones of Ukraine have been analyzed. The approximate supply of organic fertilizers to the regions of Ukraine has been calculated, based on various scenarios. The characteristics of potential resources of organic raw materials of natural origin and organic waste from the standpoint of humus formation are given. Approaches to the management of organic materials are proposed to improve the efficiency of humus accumulation in soils. Keywords: organic raw materials, humus, zonal sufficiency, approaches to resource management.

scholarly journals Phytoavailability of Cd, Cr, Cu, Hg, Mn, Mo, Ni, Pb, Tl and Zn in Arable Crop Systems Amended for 13 to 15 Years with Organic Waste Products

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 664
Author(s):  
Aurélia Marcelline Michaud ◽  
Valérie Sappin-Didier ◽  
Philippe Cambier ◽  
Christophe Nguyen ◽  
Noémie Janot ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Organic Waste ◽  
Field Experiments ◽  
Chemical Properties ◽  
Growth Stages ◽  
Organic Carbon Content ◽  
Waste Products ◽  
Soil Organic Carbon Content

Repeated applications of organic waste products (OWP) are a source of trace elements (TE) inputs to agricultural topsoils. The present study aimed at (i) assessing the effects of repeated OWP inputs on the chemical properties of topsoils in two long-term field experiments (13 and 15 years; calcareous and non-calcareous soils), (ii) evaluating TE phytoavailability and their transfer to grain (winter wheat and maize) and (iii) identifying the underlying factors causing alterations of TE phytoavailability. In both field experiments, receiving compliant or slightly high doses of OWP in compliance with regulations, OWP and soil physicochemical properties and TE concentrations in soils and grains were determined. In situ phytoavailability of TE was assessed at two juvenile crop growth stages by analyzing TE concentrations in shoot plantlets. Depending on the OWP input amount, results showed that compared to the soil receiving no organic amendment, repeated OWP inputs significantly increased soil organic carbon content, pH, cation exchange capacity, total soil Cu, Mo and Zn concentration and the phytoavailability of Mo, while the phytoavailability of Cd, Mn, Ni and Tl was significantly reduced. No notable effect was observed for Cr, Cu, Hg, Pb and Zn phytoavailability. Statistical approaches suggested that due to the repeated OWP applications, increased soil organic carbon content and pH, were likely responsible for decreased TE phytoavailability (e.g., Cd).

scholarly journals Soil Organic Carbon Pool under Diverse Chemical Fertilizer Management in Huang-Huai-Hai Plains, China

2013 ◽  
Vol 2 (1) ◽  
pp. 68-80 ◽  
Author(s):  
Xiangbin Kong ◽  
Baoguo Li ◽  
Rattan Lal ◽  
Kejiang Li ◽  
Youlu Bai
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Chemical Fertilizer ◽  
Carbon Pool ◽  
Fertilizer Management ◽  
Organic Carbon Pool
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