Geostatistical modeling approach for studying total soil nitrogen and phosphorus under various land uses of North-Western Himalayas

Ecological Informatics, Год журнала: 2024, Номер 80, С. 102520 - 102520

Опубликована: Фев. 12, 2024

The distribution of total soil nitrogen (TSN) and phosphorus (TSP) plays a pivotal role in shaping quality, fertility, agricultural practices, environmental balance, especially ecologically sensitive regions like the North-Western Himalayas (NWH). primary objectives this study were to contribute clarify impact rationale various land uses on spatial variation TSN TSP corresponding soils. This aimed explore relation NWH soils with factors landscape physiography physical chemical properties using random sampling geostatistical analyses. Employing sampling, 300 surface samples (at depth 0–20 cm) collected across 500 m × grids from agriculture, horticulture, forest fallow lands region. heterogeneity systematically analyzed standard statistical approaches (Gaussian, spherical, exponential, linear). Results revealed decreasing order levels i.e., horticulture (0.410 0.723 mg/kg) > agriculture (0.314 0.597 (0.236 0.572 (0.275 0.342 mg/kg). Stepwise multiple regression results demonstrated correlation between organic carbon (SOC), while was correlated (SOC) fine-grained particles. Nugget % values indicated following variability for TSN: (1.4) horticultural (3.2) (3.9) (4.8) mixed (5.8), whereas showed similar trend all uses. optimized conceptual framework isotropy models varied dependence use type. patterns use-related variations improved prediction nutrient distribution, so contributing an future studies. Finally, provided crucial insights enhance sustainability, equilibrium fragile region, solve significant research gap global understanding dynamics.

Язык: Английский

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Biochar amendments combined with organic fertilizer improve maize productivity and mitigate nutrient loss by regulating the C–N–P stoichiometry of soil, microbiome, and enzymes

Chemosphere, Год журнала: 2023, Номер 324, С. 138293 - 138293

Опубликована: Март 2, 2023

Язык: Английский

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Nitrogen inhibitors improve soil ecosystem multifunctionality by enhancing soil quality and alleviating microbial nitrogen limitation

The Science of The Total Environment, Год журнала: 2023, Номер 880, С. 163238 - 163238

Опубликована: Апрель 1, 2023

Язык: Английский

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Partially replacing chemical fertilizer with manure improves soil quality and ecosystem multifunctionality in a tea plantation

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 378, С. 109284 - 109284

Опубликована: Сен. 7, 2024

Язык: Английский

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Soil ecoenzyme activities coupled with soil properties and plant biomass strongly influence the variation in soil organic carbon components in semi-arid degraded wetlands

The Science of The Total Environment, Год журнала: 2024, Номер 922, С. 171361 - 171361

Опубликована: Фев. 29, 2024

Язык: Английский

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Ecoenzymatic stoichiometry as a temporally integrated indicator of nutrient availability in soils

Soil Science & Plant Nutrition, Год журнала: 2024, Номер 70(4), С. 246 - 269

Опубликована: Апрель 16, 2024

The extent to which soil enzyme activity in assessing nutrient availability is useful has been controversial. In this review, we discuss the utility of ecoenzymatic stoichiometry (i.e. ratio nutrient- carbon (C)-acquiring activities) on basis resource allocation model for ecoenzyme synthesis. Both selection appropriate enzymes and balance between relative amounts substrates are decisive factors utilizing stoichiometry. Ecoenzymatic can evaluate nitrogen (N), phosphorus, sulfur many soils catalytic reactions substrate-limited but not enzyme-limited. However, approach does seem be applicable where microbes limited by other than availability, such as low temperature, Certain enzymes, N-acetyl-β-glucosaminidase protease, appear insensitive N because they release compounds containing both C serve sources C/energy. We propose use L-asparaginase urease N-acquiring that a compound NH4+) hydrolysis product. considered an indicator long-term (weeks) temporally integrated rather instantaneous plants well microbes, (i) persistence extracellular soils; (ii) significant correlation measurements reflecting quantity available nutrients soil; (iii) plant uptake. This review also identifies challenges microbial limitation using With comprehensive understanding underlying mechanisms limitations, used biologically relevant combination with approaches conventional chemical extraction methods addition approach.

Язык: Английский

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Diversified crop rotation: Synergistically enhancing peanut yield and soil organic carbon stability

Agriculture Ecosystems & Environment, Год журнала: 2025, Номер 382, С. 109497 - 109497

Опубликована: Янв. 20, 2025

Язык: Английский

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Biochar-Associated Free Radicals Reduce Soil Bacterial Diversity: New Insight into Ecoenzymatic Stoichiometry

Environmental Science & Technology, Год журнала: 2023, Номер 57(48), С. 20238 - 20248

Опубликована: Ноя. 17, 2023

The toxicity of environmentally persistent free radicals (EPFRs), often generated during biochar production, on soil bacteria is still not truly reflected when considering the conditions in real soil. Herein, influence within was investigated from perspectives enzyme activity, community structure, and ecoenzymatic stoichiometry. Biochar addition enhanced contents EPFRs derived hydroxyl (•OH) soil, while it reduced bacterial alpha diversity by 5.06–35.44%. results redundancy analysis inhibition experiments collectively demonstrated key role •OH reducing diversity. Specifically, increased stoichiometric imbalance promoting release dissolved organic carbon ammonium N, thus aggravating P limitation This further confirmed alkaline phosphatase activity 702 to 874 nmol g–1 h–1. induced decreased diversity, as evidenced negative correlation between (r2 = −0.931 −0.979, < 0.01) structural equation model. obtained demonstrate a ubiquitous but previously overlooked mechanism for biochar-associated radicals, providing scientific guidance safe utilization biochar.

Язык: Английский

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Pre-activated biochar by fertilizers mitigates nutrient leaching and stimulates soil microbial activity

Chemical and Biological Technologies in Agriculture, Год журнала: 2023, Номер 10(1)

Опубликована: Июнь 26, 2023

Abstract Background Previous studies have suggested that the targeted application of biochars in agricultural soils may benefit soil health and crop production. Physico-chemical properties after biochar addition been explored, but less is known about how microbial parameters respond. Therefore, impact (NB), mineral fertilizer-activated (AB), or fertilizer (MF) on selected chemical lettuce-planted was evaluated a pot experiment. Results In comparison to control, enzymes activities, related carbon (C), nitrogen (N), phosphorus (P) cycling, their content plant biomass, were significantly increased by with without (MF, NB + MF). Conversely, respiration (basal substrate induced) highly responsive activated amendment (AB) as compared other treatments. N, P, potassium (K) concentrations pore water stabilized biochar, indicating reduced leaching likelihood longevity these nutrients soils. Enhanced acquisition mitigated most experimental treatments coupled higher (lettuce) biomass. Conclusions Our study demonstrates both has potential enhance activity fertility tested soil, fertilizer-borne be activation process. Graphical

Язык: Английский

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Regulation of soil C–N–P stoichiometry by intercropping mitigates microbial resource limitations and contributes to maize productivity

Plant and Soil, Год журнала: 2023, Номер 498(1-2), С. 21 - 38

Опубликована: Сен. 19, 2023

Язык: Английский

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