Insights into the formation and stability of soil aggregates in relation to the structural properties of dissolved organic matter from various organic amendments

Sonsri, Kiattisak; Watanabe, Akira

doi:10.1016/j.still.2023.105774

Cited by 12 publications

(3 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Soil structure also has a profound impact on soil moisture. The aggregate structure is related to the content of soil organic matter and the amount of organic fertilizer applied [20]. Bio-organic fertilizer substitution significantly reduced soil bulk density by 4.0-5.6% and enhanced soil porosity by 4.2-5.9% in the 0-40 cm soil layer.…”

Section: Discussionmentioning

confidence: 99%

Effects of Manure-Based Nitrogen Substitution for Chemical Nitrogen Fertilizers on Economic Benefits and Water-Use Efficiency of Maize

Wang,

Tian,

2023

Agronomy

View full text Add to dashboard Cite

How to use nitrogen fertilizer is crucial for farmers in boosting crop yield and fostering sustainable agricultural development. We hypothesized that replacing the nitrogen (N) provided by mineral fertilizer with manure would enhance the soil water storage, increase water use efficiency (WUE), maintain maize yield, and improve economic benefits. We performed the experiment by replacing 0% (CK), 25% (M25), 50% (M50), 75% (M75), and 100% (M100) of mineral N fertilizer (225 kg ha–1) with an equivalent amount of N from manure during 2016–2019. M25 and M50 increased the soil water storage at 0–2 m depth after maize harvest, while M25 significantly decreased the evapotranspiration by 5.27–22.14% compared with CK. The replacement treatments significantly increased maize yield and WUE by 6.58–13.62% and 5.68–18.00%, respectively, during the fourth fertilization year. Meanwhile, the net benefits of the replacement treatments were significantly higher than that of CK in the year of higher precipitation and irrigation water. M75 significantly increased net benefits by 8.47–35.51% compared with CK. M75 had the highest comprehensive evaluation score. Thus, the study proposes a combination of 75% N from manure with 25% N from mineral fertilizer to achieve a high maize yield and benefits.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of Manure-Based Nitrogen Substitution for Chemical Nitrogen Fertilizers on Economic Benefits and Water-Use Efficiency of Maize

Wang,

Tian,

2023

Agronomy

View full text Add to dashboard Cite

show abstract

“…In order to quantify the relative change of FTIR spectra of bamboo forest soil organic matter, the value of the relative intensity of each peak has been widely used [10,39]. The FTIR spectra present a peak at 3424 cm −1 , indicating the occurrence of O-H stretching of intramolecular hydrogen bonds between cellulose chains [32]. The four soil types did not show any difference at 3424 cm −1 , indicating that the phytoremediation process did not increase the hydrophilicity of the metals.…”

Section: Chemical Components Of Som and Soil Structurementioning

confidence: 99%

Enhancement of Phytoremediation of Heavy Metal Pollution Using an Intercropping System in Moso Bamboo Forests: Characteristics of Soil Organic Matter and Bacterial Communities

Bian,

Zhang,

et al. 2023

Forests

View full text Add to dashboard Cite

Heavy metal pollution in soil is a major global issue, and one effective method for addressing it is phytoremediation through bamboo planting. Nevertheless, there is a notable gap in our knowledge as no studies have explored the characteristics of soil organic matter (SOM) and the bacterial communities in bamboo forests during the remediation process. To bridge this knowledge gap, we conducted research to investigate the impact of different bamboo planting patterns on the SOM characteristics and microbial communities in soils contaminated with heavy metals. The contents of SOM and dissolved organic matter (DOM) in rhizosphere and non-rhizosphere soils differed significantly between monocropping and intercropping systems, with DOM accounting for only 1.7%–2.5% of SOM. Fourier transform infrared spectra showed that the contents of SOM polysaccharides C-O, carbonate C-O, aliphatic methyl, and methylene increased, while the aromatic C=C abundance decreased in the intercropping rhizosphere soil. The differences between bamboo cultivation patterns in the rhizosphere and non-rhizosphere soils were elucidated using the biomarkers, including MND1 and Nitrospira (non-rhizosphere), and Sphingomonas (rhizosphere). Heavy metals, DOM, SOM, and refined organic functional groups, especially C-O in polysaccharides and symmetric carboxylate, were the determining factors of soil bacterial communities. Compared to monocropping, intercropping increased the accumulation of Zn and Cd in bamboo shoots by 35% and 40%, respectively, and hence, intercropping soil, with a low toxicity, was suitable for bamboo shoot sprouting. Intercropping can alter the characteristics of SOM and bacterial communities and plays a vital role in phytoremediation and shoot growth in bamboo forests. Future studies on soil carbon dynamics and nutrient status during heavy metal remediation will improve our knowledge of soil transformation and its impact on soil ecosystem health and productivity.

show abstract

“…Marinissen 2004, Wong et al 2010,Bailey et al 2019, Sonsri andWatanabe 2023). In soils with high levels of salinity and sodicity, high EC e (i.e., 4-8 dS m -1 , yields of many crops are restricted; 8-16 dS m -1 , only tolerant crops yield satisfactorily; and >16 dS m -1 , only a few very tolerant crops yield satisfactorily due to toxicity;Shirokova et al 2000) in the soil solution results in the flocculation of clay particles into aggregates, which may restrict substrate availability and thus bring about the decomposition of SOM.…”

mentioning

confidence: 99%

Interactive influences of salinity and sodicity levels on depth-wise soil organic matter and micronutrient elements in Thailand

Phankamolsil,

Tengprasert,

Kheoruenromne

et al. 2024

Environ. Res. Commun.

Self Cite

View full text Add to dashboard Cite

Soil salinity and sodicity are the major environmental issues that lead to the deterioration of soil properties, nutrient cycling, and soil ecosystems around the globe. Nevertheless, the reciprocal effects of salinity and sodicity levels on depth-wise soil organic matter (SOM) and micronutrients remain elusive, particularly in Thailand. For a better understanding of such an issue, soil samples were collected from 38 sites at depths of 0–20, 30–50, 60–80, and 80–120 cm where they were affected by salts with variable levels of salinity and sodicity, having electrical conductivity (ECe), and exchangeable sodium percentage (ESP) from 0.20–74.70 dS m–1, and 2.74%–113.23%, respectively. Soil physicochemical properties, including distribution of sand, silt, and clay, pH, soil organic carbon (SOC), and micronutrients (Fe, Zn, Mn, Cu, and B) were determined. The results exhibited that SOC content, ranging from 3.36–14.74 g kg–1, was higher in topsoil (0–20 cm) compared to the other three soil depths and it correlated negatively with ECe (0–20 and 80–120 cm) and ESP (80–120 cm), suggesting the declines in SOC amount due to high salinity and sodicity levels. Topsoil Mn concentration (0.06–182.06 mg kg–1) also tended to be greater than the other soil depths while Fe concentration in that soil depth (0.02–33.99 mg kg–1) tended to be smaller. The ECe correlated negatively with the concentrations of Fe, Cu (all soil depths), and Zn (30–50 and 60–80 cm), and positively with Mn concentration (60–80 and 80–120 cm), suggesting that the availability of Fe Cu and Zn is vulnerable to high salinity and sodicity levels. Overall, our findings highlight that high salinity and sodicity levels brought about a reduction in SOC content and low concentrations of micronutrients in soils, irrespective of Mn concentration.

show abstract

Insights into the formation and stability of soil aggregates in relation to the structural properties of dissolved organic matter from various organic amendments

Cited by 12 publications

References 58 publications

Effects of Manure-Based Nitrogen Substitution for Chemical Nitrogen Fertilizers on Economic Benefits and Water-Use Efficiency of Maize

Effects of Manure-Based Nitrogen Substitution for Chemical Nitrogen Fertilizers on Economic Benefits and Water-Use Efficiency of Maize

Enhancement of Phytoremediation of Heavy Metal Pollution Using an Intercropping System in Moso Bamboo Forests: Characteristics of Soil Organic Matter and Bacterial Communities

Interactive influences of salinity and sodicity levels on depth-wise soil organic matter and micronutrient elements in Thailand

Contact Info

Product

Resources

About