Simultaneous removal of hardness and organic matter from oilfield-produced water by microbially induced calcite precipitation

Water Research, Год журнала: 2025, Номер 276, С. 123252 - 123252

Опубликована: Фев. 8, 2025

Язык: Английский

---

Impact of no-tillage and reduced nitrogen input on corn yield and nitrogen efficiency in the corn belt of northeast China

Field Crops Research, Год журнала: 2025, Номер 322, С. 109742 - 109742

Опубликована: Янв. 17, 2025

Язык: Английский

---

The duration of intensive vegetable cultivation regulates the fates of accumulated nitrate under reductive soil disinfestation

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Purpose Reductive soil disinfestation (RSD) can remove over-accumulated nitrate (NO₃⁻-N) from topsoil in intensive vegetable fields via elevating NO₃⁻-N consumption processes. The duration of cultivation may affect the relative importance these consuming processes during RSD treatment by altering properties. However, it remains elusive how affects fates treatment. Methods Here, a column experiment labeled with K¹⁵NO₃ was conducted to investigate effects different ages (5, 10, 20 and 30 years) vegetables on under Results results showed that more than 91.8% added ¹⁵NO₃⁻-N removed treatment, regardless years. There trade-off between denitrification leaching into subsoil, both which together accounted for 85.5–97.1% ¹⁵NO₃⁻-N, proportion gaseous ¹⁵N loss (P_{denitrification}) initially increased 5 10 years cultivation, then decreased further ages, but trend reversed subsoil (P_leaching). structural equation model revealed initial carbon/nitrogen ratio had an indirect positive effect P_{denitrification} driving nirK abundance Conclusion Overall, our highlight critical role using removing accumulated its P_leaching as cultivation.

Язык: Английский

---

Optimizing Nitrogen for Sustainable Yield and Efficiency: Insights from Shouguang Facility-Grown Tomatoes

Agronomy, Год журнала: 2025, Номер 15(2), С. 420 - 420

Опубликована: Фев. 7, 2025

Facility-based agriculture has rapidly advanced due to its capacity for high-intensity and year-round crop cultivation. This study evaluated the effects of different nitrogen fertilizer application rates on growth greenhouse tomatoes, while utilizing 15N tracing technology explore utilization efficiency during process facility-grown tomatoes. The results indicate that within range N60–N80 (93–128 kg N ha−1) can optimally balance yield, nitrogen-use efficiency, growth. Application exceeding this do not enhance yield lead reduced efficiency. Tomato plants exhibited a low requirement seedling stage, relying primarily native soil stocks flowering stage. Fertilizer-derived use increased fruiting These findings demonstrate excessive inputs diminishing returns potential nutrient imbalances, fully stages is essential. emphasizes importance adjusting input according developmental optimize resource utilization.

Язык: Английский

---

Variation in soil nitrous oxide emission with nitrogen application rates under reclaimed water irrigation

Frontiers in Environmental Science, Год журнала: 2025, Номер 13

Опубликована: Апрель 30, 2025

Nitrous oxide (N 2 O) is a potent greenhouse gas primarily emitted from agricultural soils through microbial nitrogen transformation processes. Different application rates and fertilizer types influence soil pathways, thereby affecting N O production emissions. Reclaimed water (RW), due to its chemical composition, may further modulate these In this study, disturbed incubation experiment was conducted using two irrigation [RW deionized (CW)], three forms [ammonium sulfate (NH 4 + ), potassium nitrate (NO 3 − sodium nitrite )], (200 400 mg kg −1 ) examine the dynamics of The study found that, compared CW, high fertilization levels (400 NH under RW treatment significantly increased cumulative emissions by 25.04%, enhancing abundance ammonia monooxygenase gene in ammonia-oxidizing archaea ( AOA-amoA bacteria AOB-amoA reductase nirS ). However, at low , there no significant differences Under NO treatment, although it did not lead higher or either concentrations. contrast, 27.56% 39.25%, respectively. conclusion, does elevate with nitrate-based fertilizers. careful management nitrification required ammonium-based fertilizers, including use inhibitors improved aeration, minimize accumulation related environmental risks.

Язык: Английский

---

The duration of intensive vegetable cultivation regulates the fates of accumulated nitrate under reductive soil disinfestation

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Апрель 5, 2025

Язык: Английский

---

Long-term straw return increases fungal residual contribution to soil microaggregate nitrogen pool: An eco-enzymatic stoichiometric study

Soil and Tillage Research, Год журнала: 2024, Номер 244, С. 106278 - 106278

Опубликована: Авг. 29, 2024

Язык: Английский

---

Effects of exogenous nitrogen addition on soil organic nitrogen fractions in different fertility soils: Result from a 15N cross-labeling experiment

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 379, С. 109366 - 109366

Опубликована: Ноя. 5, 2024

Язык: Английский

---

Effects of nitrification inhibitor and maize straw application on N2O and N2 emissions from two agricultural soils: A 15N tracer study

Soil Ecology Letters, Год журнала: 2024, Номер 7(1)

Опубликована: Дек. 20, 2024

Язык: Английский

---