Greenhouse gas emissions and mitigation in rice agriculture

Nature Reviews Earth & Environment, Год журнала: 2023, Номер 4(10), С. 716 - 732

Опубликована: Сен. 26, 2023

Язык: Английский

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Increasing contribution of microbial residues to soil organic carbon in grassland restoration chronosequence

Soil Biology and Biochemistry, Год журнала: 2022, Номер 170, С. 108688 - 108688

Опубликована: Апрель 28, 2022

Язык: Английский

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Management‐induced changes in soil organic carbon and related crop yield dynamics in China's cropland

Global Change Biology, Год журнала: 2023, Номер 29(13), С. 3575 - 3590

Опубликована: Апрель 6, 2023

Enhancing soil organic carbon (SOC) sequestration and food supply are vital for human survival when facing climate change. Site-specific best management practices (BMPs) being promoted adoption globally as solutions. However, how SOC crop yield related to each other in responding BMPs remains unknown. Here, path analysis based on meta-analysis machine learning was conducted identify the effects potential mechanisms of relationship between responds site-specific China. The results showed that could significantly enhance maintain or increase yield. maximum benefits (30.6%) (79.8%) occurred mineral fertilizer combined with inputs (MOF). Specifically, optimal would be achieved areas were arid, pH ≥7.3, initial content ≤10 g kg-1 , duration >10 years, nitrogen (N) input level 100-200 kg ha-1 . Further revealed original change an inverted V-shaped structure. association changes might linked positive role nutrient-mediated effect. generally suggested improving can strongly support better performance. Limitations increasing still exist due low level, regions where excessive N inputs, inappropriate tillage is inadequate diminished by optimizing harmony conditions.

Язык: Английский

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Paddy soils have a much higher microbial biomass content than upland soils: A review of the origin, mechanisms, and drivers

Agriculture Ecosystems & Environment, Год журнала: 2021, Номер 326, С. 107798 - 107798

Опубликована: Ноя. 27, 2021

Язык: Английский

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Depth effects on bacterial community assembly processes in paddy soils

Soil Biology and Biochemistry, Год журнала: 2021, Номер 165, С. 108517 - 108517

Опубликована: Дек. 6, 2021

Язык: Английский

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Integrated Nutrient Management for Rice Yield, Soil Fertility, and Carbon Sequestration

Plants, Год журнала: 2022, Номер 11(1), С. 138 - 138

Опубликована: Янв. 5, 2022

Reliance on inorganic fertilizers with less or no use of organic has impaired the productivity soils worldwide. Therefore, present study was conducted to quantify effects integrated nutrient management rice yield, efficiency, soil fertility, and carbon (C) sequestration in cultivated land. The experiment designed seven treatments comprising a zero input control, recommended (RD), poultry manure (PM) (5 t ha-1) + 50% RD, PM (2.5 75% vermicompost (VC) VC farmers' practice (FP) three replications that were laid out randomized complete block design. highest grain yield (6.16-6.27 attained when applied at rate 2.5 ha-1 along RD. Uptake nutrients their subsequent efficiencies appeared higher satisfactory from combined application fertilizers. addition fertilizer significantly influenced carbon, total nitrogen, ammonium nitrate pH, phosphorus, potassium, sulfur, calcium, magnesium contents post-harvest soil, which indicated enhancement fertility. maximum value stock (18.70 ha-1), (20.81 (1.75 observed 5 bulk density decreased slightly more than improvement physical properties using manures. regular nourishment might help rejuvenate ensure agricultural sustainability.

Язык: Английский

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Linking the chemical nature of soil organic carbon and biological binding agent in aggregates to soil aggregate stability following biochar amendment in a rice paddy

The Science of The Total Environment, Год журнала: 2022, Номер 847, С. 157460 - 157460

Опубликована: Июль 19, 2022

Язык: Английский

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Visualization and quantification of carbon “rusty sink” by rice root iron plaque: Mechanisms, functions, and global implications

Global Change Biology, Год журнала: 2022, Номер 28(22), С. 6711 - 6727

Опубликована: Авг. 5, 2022

Paddies contain 78% higher organic carbon (C) stocks than adjacent upland soils, and iron (Fe) plaque formation on rice roots is one of the mechanisms that traps C. The process sequence, extent global relevance this C stabilization mechanism under oxic/anoxic conditions remains unclear. We quantified localized contribution Fe to matter in a microoxic area (rice rhizosphere) evaluated roles trap for sequestration paddy soils. Visualization localization pH by imaging with planar optodes, enzyme activities zymography, root exudation 14 imaging, as well upscale modeling enabled linkage three groups rhizosphere processes are responsible from micro- (root) macro- (ecosystem) levels. activity soil (reflecting rhizodeposits) Fe2+ addition was 1.4-1.5 times control phosphate Perfect co-localization hotspots β-glucosidase (by zymography) (14 C) showed labile high were within plaques. its microbial oxidation Fe3+ radial oxygen release increased (Fe3+ ) 1.7-2.5 times. amounts trapped 1.1 after addition. Therefore, formed amorphous complex (oxyhydr)oxides surface act "rusty sink" matter. Considering coverage soils globally, upscaling model revealed loss bacterial may up 130 Mg plaques per season. This represents an important annual surplus new stable existing pool long-term cropping.

Язык: Английский

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Iron Sulfate (FeSO4) Improved Physiological Attributes and Antioxidant Capacity by Reducing Oxidative Stress of Oryza sativa L. Cultivars in Alkaline Soil

Sustainability, Год журнала: 2022, Номер 14(24), С. 16845 - 16845

Опубликована: Дек. 15, 2022

Rice ranks second among cereals in dietary uses around the world. is deficient iron (Fe), and these are important micronutrients for infants, men, women. Fortification of rice with would help to minimize nutrient deficiency disorders humans. The current study aims introduce nutrient-rich rice. effects on germination, growth, photosynthetic pigment, antioxidant activity, reduction oxidative stress were investigated four Oryza sativa L. cultivars. O. different cultivars (Basmati-515, PK-386, KSK-133, Basmati-198) grown under five treatments (100, 200, 300, 400, 500 mM) sulphate (FeSO4) soil pH 7.5, along control, by using six replicates. result revealed that Fe treatment significantly affected seed germination percentage, plant growth parameters, biomass, pigments (chl a, chl b, total chlorophyll, carotenoids), enzymatic non-enzymatic reduced stress. findings also showed application including malondialdehyde content hydrogen peroxide, increasing i.e., catalase, ascorbate peroxidase, superoxide dismutase, glutathione 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH), compounds (proline, amino acid, soluble protein, phenolics, flavonoids, reducing-non-reducing sugar, carbohydrates) all sativa. Furthermore, FeSO4 induced a significant increase proline, free carbohydrates leaves cultivars, but Basmati-198 highest 169, 88, 110%, respectively, at concentration mM. present research work improved antioxidants denatured ROS (reactive oxygen species) alkaline soil. In order understand underlying mechanisms, long-term field investigations should be carried out molecular level examine patterns uptake growth.

Язык: Английский

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Mercury drives microbial community assembly and ecosystem multifunctionality across a Hg contamination gradient in rice paddies

Journal of Hazardous Materials, Год журнала: 2022, Номер 435, С. 129055 - 129055

Опубликована: Май 4, 2022

Язык: Английский

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