Enhancing nitrogen use efficiency in agriculture by integrating agronomic practices and genetic advances

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Март 11, 2025

Nitrogen is a critical nutrient for plant growth and productivity, but inefficiencies in its use agriculture present both economic environmental challenges. Enhancing nitrogen efficiency (NUE) essential promoting sustainable crop production mitigating the negative impacts of loss, such as water pollution greenhouse gas emissions. This review discusses various strategies aimed at improving NUE, with focus on agronomic practices, genetic advancements, integrated management approaches. Traditional methods, including split application controlled-release fertilizers, are explored alongside precision techniques, which enable real-time adjustments to based soil conditions. Advances genetics biotechnology, conventional breeding, modification, genome editing, have contributed development varieties improved uptake assimilation. Additionally, role beneficial microbes, nitrogen-fixing bacteria mycorrhizal fungi, highlighted natural means enhancing availability reducing reliance synthetic fertilizers. The further emphasizes practices legume-based rotations, continuous cover cropping, organic fertilization, contribute enrichment overall health. By combining these agronomic, genetic, microbial strategies, holistic approach can be achieved, maximizing yields while minimizing impacts. strategy supports resilient agricultural systems, long-term fertility productivity.

Язык: Английский

---

Optimizing Nitrogen Management for Sustainable Wheat Production in Semi-Arid Subtropical Environments: Impact on Growth, Physio-Biochemical, and Yield Attributes

Nitrogen, Год журнала: 2025, Номер 6(2), С. 36 - 36

Опубликована: Май 16, 2025

Nitrogen fertilization plays a critical role in promoting plant growth, improving physiological and biochemical traits, enhancing wheat productivity. This study aimed to evaluate the effects of seven nitrogen (N) doses—0, 45, 90, 135, 180, 225, 270 kg N ha−1—on performance under semi-arid subtropical conditions over three consecutive growing seasons (2015–2018). A randomized complete block design (RCBD) was used assess comprehensive set agronomic, physiological, biochemical, nutritional parameters. Key factors examined included grain yield, above-ground biomass, harvest index, total content grains straw, traits such as photosynthetic rate, stomatal conductance, transpiration accumulation soluble proteins, sugars, amino acids. The also incorporated multivariate statistical techniques, multi-trait genotype–ideotype distance index (MGIDI), principal component analysis (PCA), descriptive statistics identify most effective dose. Results indicated that 180 ha−1 (T4) treatment for efficiency, with 135 (T3) showing favorable outcomes. In contrast, higher doses (225 ha−1) led diminished performance, suggesting threshold beyond which becomes counterproductive. These findings support optimal dose maximizing yield quality while contributing more sustainable profitable production.

Язык: Английский

---

Effect of zinc oxide and zinc oxide nanoparticles coating on urea diffusion and its release kinetics for design and development of slow-release fertilizer: an experimental and numerical investigation

Journal of Coatings Technology and Research, Год журнала: 2023, Номер 21(1), С. 199 - 213

Опубликована: Сен. 19, 2023

Язык: Английский

---

Advancing nitrogen use efficiency in cereal crops: A comprehensive exploration of genetic manipulation, nitrogen dynamics, and plant nitrogen assimilation

South African Journal of Botany, Год журнала: 2024, Номер 169, С. 486 - 498

Опубликована: Май 4, 2024

Язык: Английский

---

Rice straw incorporation and Azolla application improves agronomic nitrogen-use-efficiency and rice grain yields in paddy fields

Frontiers in Soil Science, Год журнала: 2024, Номер 4

Опубликована: Май 21, 2024

In paddy soils, excessive application of N fertilizer often results in substantial losses due to low utilization efficiency. However, this condition can be mitigated by enhancing soil organic carbon content. Two-year field experiment was carried out at Mkula Irrigation Scheme Kilombero Valley, Tanzania with the aim investigating impact Azolla, rice straw incorporation and reduced levels nitrogen input from NPKS-containing fertilizers on use efficiency, chemical properties grain yield. Assuming that technology will introduce a novel perspective research, shedding light alternative potentially more sustainable methods for management it particularly relevant sub-Saharan Africa, where annual cost is expected continue rising. The treatments involved absolute control, half dose (50 kg ha -1 ), full (100 combination these doses PKS, dry Azolla (3.4 t ) (6.9 through omission approach. experimental area sandy clay loam texture, very strongly acid (pH 4.8), normal electrical conductivity (0.06 dS m amounts recorded (1.35%), total (0.33%), 0.68 mg −1 available P, exchangeable potassium (0.15 cmol (+) calcium (0.19 sodium percentage (3.75%), cation exchange capacity (1.6 ). showed +100 + 30 P K 20 S resulted higher yield, uptake agronomic efficiency N. being an effective biofertilizer, significantly contributes fixation enrichment. Interestingly, study demonstrates co-application straw, 50% achieving high yields, minimizing over-dependence fertilizer, agricultural development, environmental conservation.

Язык: Английский

---

Advances in the Study of NO3− Immobilization by Microbes in Agricultural Soils

Nitrogen, Год журнала: 2024, Номер 5(4), С. 927 - 940

Опубликована: Окт. 11, 2024

The extensive application of nitrogen (N) fertilizers in agriculture has resulted a considerable accumulation N the soil, particularly nitrate (NO3−), which can be easily lost to surrounding environments through leaching and denitrification. Improving immobilization NO3− by soil microorganisms is crucial improve retention capacity reduce risk loss. In this paper, we reviewed significance microbial retention, techniques quantify gross rate, its influencing factors. Specifically, discussed respective contribution fungi bacteria clarified that incorporation organic materials vital importance enhancing capacities agricultural soils. However, there still lack research on utilization different functional groups due limited techniques. future, attention should paid how regulate make supply match better with crop demand, thereby improving use efficiency reducing losses.

Язык: Английский

---

Five years nitrogen reduction management shifted soil bacterial community structure and function in high-yielding ‘super’ rice cultivation

Agriculture Ecosystems & Environment, Год журнала: 2023, Номер 360, С. 108773 - 108773

Опубликована: Окт. 23, 2023

Integrated nitrogen (N) management has been adopted for the cultivation of 'super' rice to achieve high yield while minimizing environmental risks. How soil microbial communities respond integrated N in production remains unclear. Five years field experiment was conducted under a wheat–rice system, with four treatments: conventional farming practices (300 kg ha–1 N), reduced (270 ha–1) and increase (360 application coupled increased planting density accurate irrigation, non-N control. The results showed that after five treatment, predominant bacterial phyla shifted from Proteobacteria (22.99%), Acidobacteria (17.04%), Chloroflexi (14.43%), (30.83%), (20.9%), Actinobacteria (16.07%). structure community differed among treatments, available phosphorus contents pH as key drivers first year NO3--N content fifth year. highest detected treatment application, whereas reduction led 32% decrease NO3–-N content. A greater difference functional groups than Following there also an proportion N-transforming groups, including those involved aerobic ammonia oxidation, nitrate denitrification, nitrite denitrification. Collectively, fertilizer irrigation most effective regulating communities, especially associated transformation cultivation.

Язык: Английский

---

Evaluation of the Agronomic Efficiency of Azospirillum brasilense Strains Ab-V5 and Ab-V6 in Flood-Irrigated Rice

Agronomy, Год журнала: 2022, Номер 12(12), С. 3047 - 3047

Опубликована: Дек. 1, 2022

The rational use of nitrogen fertilization is fundamental, not only to increase recovery efficiency, but also crop productivity and reduce the production costs risks environmental impacts. In State Rio Grande do Sul in Brazil, irrigated rice can surpass 8 tonne·ha−1 as a result technification favorable conditions, yet there great variability agronomic efficiency chemical fertilizers, which rarely exceed 50% applied dose. Biological fixation one technological alternatives for reducing this crop. study, Azospirillum brasilense strains Ab-V5 Ab-V6 terms biological flood-irrigated cultivars lowland agroecosystem was evaluated through five field experiments. A. combined with reduced (reduction 30 kg N·ha−1) increased dry mass aerial part plants by 3.2%, promoted an N concentration stems leaves content exported grains 43% 27.5%, respectively, relation absence inoculant, average 30% production.

Язык: Английский

---

Changes in Nitrogen-Related Performance Attributes of Winter Wheat Varieties Released Between 1950 and 2020 in Dryland Region of China

Journal of soil science and plant nutrition, Год журнала: 2023, Номер 23(4), С. 5404 - 5418

Опубликована: Авг. 11, 2023

Язык: Английский

---

Empowering rice breeding with NextGen genomics tools for rapid enhancement nitrogen use efficiency

Gene, Год журнала: 2024, Номер 927, С. 148715 - 148715

Опубликована: Июнь 21, 2024

Язык: Английский

---