Enzyme activities distinguish long-term fertilizer effects under different soil storage methods

Reardon, Catherine L.; Klein, Ann M.; Melle, C.; Hagerty, Christina H.; Klarer, E.R.; Machado, Stephen; Paulitz, Timothy C.; Pritchett, Larry; Schlatter, Daniel; Smith, Sally; Wuest, Stewart B.

doi:10.1016/j.apsoil.2022.104518

Cited by 19 publications

(6 citation statements)

References 69 publications

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“…Previous studies showed that application of cattle manure in soil increase the nitrate reductase activity (Purbajanti et al, 2019), alkaline phosphatase activity (Gautam et al, 2020), and N-acetylglucosaminidase activity (Zhao et al, 2022). Acid phosphatase activity is always higher in low pH soils (Reardon et al, 2022). Ndlovu et al (2023) reported the lack of signi cant differences in the N-acetylglucosaminidase, acid phosphatase, alkaline phosphatase, and nitrate reductase activities of E. natalensis rhizosphere and surrounding soils in localities that experience cattle grazing, and these ndings concur with the current study.…”

Section: Discussionsupporting

confidence: 90%

Encephalartos villosus associated bacterial communities and extracellular enzymes improve soil nutrition in rhizosphere soils in forest ecosystem soils

Motsomane

Suinyuy

Magadlela

2023

Preprint

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Purpose Cycads are the only known gymnosperms associated with nitrogen-fixing bacteria housed in coralloid roots. Plant-associated bacteria, soil bacteria, and extracellular enzymes play a significant role in nutrient cycling. This study isolated and identified culturable bacteria in Encephalartos villosus coralloid roots, rhizosphere, and non-rhizosphere soils and investigated the role of soil bacteria and associated enzyme activities on soil nutrition in forest ecosystem soils in Rhebu and Oceanview, Eastern Cape, South Africa. Methods Encephalartos villosus coralloid roots were collected from mature cycad individuals for bacterial extraction and identification. Soil samples from E. villosus rhizosphere and non-rhizosphere soils were collected for bacterial identification, extracellular enzyme activity analysis, and soil characteristics (nutrient concentrations, pH, total cation, and exchange acidity). Results The bacteria isolated from the coralloid roots of E. villosus growing in Rhebu and Oceanview belonged to the Bacillus, Enterobacter, Peribacillus, Lysinibacillus, Stenotrophomonas, Rhizobium, and Paenibacillus genera. The Pseudomonas, Paraburkholderia, Burkholderia, Variovorax, Caballeronia, Stenotrophomonas, Novosphingobium, Caulobacter, Olivibacter, Cupriavidus, Arthrobacter, Gottfrieder, Dyella, Lysobacter, Xanthomonas, Neobacillus, Bradyrhizobium, Rhizobium, Enisfer, Chitinophaga, Paenarthrobacter, and Paenibacillus genera were isolated from rhizosphere and non-rhizosphere soils in Rhebu and Ocean View farm. There were no significant differences in the concentrations of soil macronutrients (N, P, K), alkaline and acid phosphatase, glucosaminidase, and nitrate reductase activity of E. villosus rhizosphere and non-rhizosphere soils in both localities, this may be attributed to dung and urine deposited by grazing cattle. Conclusion Our results show that soil bacterial communities with nutrient cycling and fixing functions may be linked to nutrient bioavailability contributing to nutrient enrichments in E. villosus rhizosphere soils.

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Section: Discussionsupporting

confidence: 90%

Encephalartos villosus associated bacterial communities and extracellular enzymes improve soil nutrition in rhizosphere soils in forest ecosystem soils

Motsomane

Suinyuy

Magadlela

2023

Preprint

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“…The application of irrigation and fertilization treatments has been shown to enhance soil nutrient content and increase microbial abundance. These changes in soil properties may be responsible for the observed increases in soil enzyme activity [41,42]. There was a proportional relationship between the quantity of fertilizer and irrigation and soil enzyme activity.…”

Section: Effect Of Irrigation and Fertilization On The Enzyme Activit...mentioning

confidence: 95%

Fertilization- and Irrigation-Modified Bacterial Community Composition and Stimulated Enzyme Activity of Eucalyptus Plantations Soil

Huo,

Mao,

Zhang

et al. 2024

IJMS

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Irrigation and fertilization are essential management practices for increasing forest productivity. They also impact the soil ecosystem and the microbial population. In order to examine the soil bacterial community composition and structure in response to irrigation and fertilization in a Eucalyptus plantations, a total of 20 soil samples collected from Eucalyptus plantations were analyzed using high-throughput sequencing. Experimental treatments consisting of control (CK, no irrigation or fertilization), fertilization only (F), irrigation only (W), and irrigation and fertilization (WF). The results showed a positive correlation between soil enzyme activities (urease, cellulase, and chitinase) and fertilization treatments. These enzyme activities were also significantly correlated with the diversity of soil bacterial communities in Eucalyptus plantations.. Bacteria diversity was considerably increased under irrigation and fertilization (W, F, and WF) treatments when compared with the CK treatment. Additionally, the soil bacterial richness was increased in the Eucalyptus plantations soil under irrigation (W and WF) treatments. The Acidobacteria (38.92–47.9%), Proteobacteria (20.50–28.30%), and Chloroflexi (13.88–15.55%) were the predominant phyla found in the Eucalyptus plantations soil. Specifically, compared to the CK treatment, the relative abundance of Proteobacteria was considerably higher under the W, F, and WF treatments, while the relative abundance of Acidobacteria was considerably lower. The contents of total phosphorus, accessible potassium, and organic carbon in the soil were all positively associated with fertilization and irrigation treatments. Under the WF treatment, the abundance of bacteria associated with nitrogen and carbon metabolisms, enzyme activity, and soil nutrient contents showed an increase, indicating the positive impact of irrigation and fertilization on Eucalyptus plantations production. Collectively, these findings provide the scientific and managerial bases for improving the productivity of Eucalyptus plantations.

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“…Multiple studies have consistently verified that extended dependence on chemical fertilizers can lead to the exhaustion of nutrients, the deterioration of soil quality, disturbances in the cycling of soil nutrients, and a diminished ability to store carbon in the soil, ultimately affecting the productivity of crops [61,62]. For instance, Reardon [63] demonstrated that continued nitrogen fertilizer application could diminish soil quality, influence the soil microbial community, and disrupt soil nutrient cycling. In contrast, organic fertilizer presents several advantages, including its comprehensive nutrient content and long-lasting fertilization effects.…”

Section: Effects Of Irrigation and Fertilization On Soil Qualitymentioning

confidence: 99%

Quantifying the Impact of Organic Fertilizers on Soil Quality under Varied Irrigation Water Sources

Lin,

Lei,

Liu

et al. 2023

Water

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The issues of limited water availability and excessive fertilizer utilization, both of which negatively impact soil health and crop productivity, are key focal points in the pursuit of sustainable agricultural progress. Given these crucial obstacles, it is crucial to utilize accurate methods of irrigation and fertilization in order to improve the condition of the soil and promote the progress of sustainable farming. The objective of this research is to determine the optimal indicators for creating a minimal data set (MDS) that can assess the influence of organic fertilizers on the quality of pakchoi soil in varying irrigation water sources. Principal component analysis and norm values were utilized to create the MDS, and its accuracy was confirmed by examining coefficients of Nash efficiency and relative deviation. The results of our study showed that there was not much difference in soil bulk density (BD), but there was moderate variation in soil water content (SWC), soil salt content (SSC), alkali-hydrolyzed nitrogen (AN), available phosphorus (AP), available potassium (AK), and organic matter (OM). The selected MDS indicators included BD, AN, and OM. The soil quality index (SQI) achieved a high R2 value of 0.952, indicating a strong correlation. Furthermore, the nonlinear evaluation model showed a high level of effectiveness and efficiency, with Ef and Er values of 0.899 and 0.046, respectively. The effectiveness of this model in evaluating soil quality under different irrigation water conditions is evident. Notably, treatments involving magnetized–ionized brackish water (average SQI = 0.524) and the application of 20 kg/ha organic fertilizer (average SQI = 0.719) demonstrate the capacity to enhance soil quality. The present study presents a pragmatic, productive, and economical quantitative evaluation approach that can be used for worldwide vegetable farming with the utilization of clean water, saline water, magnetized–ionized saline water, and organic manure. Thus, we encourage vegetable growers to consider adopting both magnetized–ionized brackish water and organic fertilizers, and the utilization of the nonlinear soil quality index evaluation model is recommended as it offers a sensitive and effective approach to assessing soil quality across various irrigation and organic fertilizer schemes.

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Enzyme activities distinguish long-term fertilizer effects under different soil storage methods

Cited by 19 publications

References 69 publications

Encephalartos villosus associated bacterial communities and extracellular enzymes improve soil nutrition in rhizosphere soils in forest ecosystem soils

Encephalartos villosus associated bacterial communities and extracellular enzymes improve soil nutrition in rhizosphere soils in forest ecosystem soils

Fertilization- and Irrigation-Modified Bacterial Community Composition and Stimulated Enzyme Activity of Eucalyptus Plantations Soil

Quantifying the Impact of Organic Fertilizers on Soil Quality under Varied Irrigation Water Sources

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