Successive incorporation of Azolla ( A. filiculoides Lam.) as green manure increases rice yield in lowland paddy soil

Soil Science & Plant Nutrition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 8

Published: March 10, 2025

Language: Английский

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Combined Effects of Rice Husk Biochar and Organic Manures on Soil Chemical Properties and Greenhouse Gas Emissions from Two Different Paddy Soils

Soil Systems, Journal Year: 2024, Volume and Issue: 8(1), P. 32 - 32

Published: March 10, 2024

The application of biochar is considered an alternative amendment strategy for improving soil fertility. In this study, we performed pot experiments using soils low and medium fertility to assess the effects different combinations organic manure on chemical properties paddy rice determined best combination improve grain yield without increasing N2O CH4 emissions. applied treatments were (control), husk alone (5 10 t ha−1), combined with chicken or cow manure. results indicated that both soils, 5 ha−1 increased by total nitrogen NH4+-N cumulative Multiple regression analysis showed when biochar, significantly contributed a higher was negatively associated CH4, emissions, GWP. Furthermore, regardless type, applications promoted significant increases in available P. Our findings indicate C/N ratio influences fluxes, type identified as factor driving greenhouse gas

Language: Английский

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A Review on the Use of Azolla Meal as a Feed Ingredient in Aquatic Animals’ Diets

Aquaculture Research, Journal Year: 2023, Volume and Issue: 2023, P. 1 - 16

Published: Nov. 4, 2023

The aquaculture industry’s insatiable demand for fishmeal has led to a price surge, prompting the search sustainable alternative protein source. Enter Azolla meal, plant that could be viable substitute fishmeal. This cost-effective supplemental feed game-changer small-scale producers looking expand their production. Numerous experiments have been conducted on replacing fishmeals with meals in fish diets, and results sparked further research. review delves into Azolla’s composition, comparing it terms of proteins, amino acids, fatty vitamins, minerals. It also explores value employing feeds various methods mitigate its adverse effects through additives during formulation. discusses essential meal growth species, including tilapia (Oreochromis niloticus), catfish (Clarias batrachus), thai silver barb (Barbonymus gonionotus), common carp (Cyprinus carpio), rohu (Labeo rohita), catla (Catla catla) mrigal (Cirrhinus cirrhosus). potential extends beyond use as ingredient. utilized bioremediation remediate hazardous chemicals water resulting from aquaculture, industrial, household waste. Further research is needed optimize develop production methods. valuable resource farmers maximize profit when using aquafeed potentially sustainably enhance With promising potential, key meeting growing while reducing environmental impact.

Language: Английский

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Cyanobacterial green chemistry: a blue-green approach for a sustainable environment, energy, and chemical production

RSC Sustainability, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Increased human activity due to the ever-increasing global population has necessitated urgent need for a sustainable environment, food, and energy.

Language: Английский

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Urea-ka: replacing inorganic nitrogen fertilizer with Azolla pinnata maintains rice yields with reduced input costs in the Senegal River Valley

International Journal of Agricultural Sustainability, Journal Year: 2025, Volume and Issue: 23(1)

Published: March 4, 2025

Sustainability is essential for the creation of a secure, sufficient, and equitable global food supply overreliance on expensive, synthetic fertilizers key challenge. Rice nitrogen-intensive crop, but Southeast Asian farmers are intercropping nitrogen-fixing floating fern Azolla into rice paddies as biofertilizer. However, despite its success distribution, not widely used elsewhere. We assessed feasibility Azolla-rice in Saint-Louis, Senegal using mixed-methods approach. conducted interviews with to assess their perceptions farming while they participated an experiment compare yields among four treatments: control plots (the existing practices farmer), (existing adding fresh Azolla), low input (a 50% reduction urea), + (reduced urea Azolla) farmers' located River Valley. Across all five sites, there was significant increase 7.57% ± 4.62% SE (p-value = 0.05) grain yield additions. Replacing caused modest 4.17% 4.61% 0.18) reducing costs by 33%. Our results suggest that has high potential improve productivity livelihoods Senegal.

Language: Английский

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Azolla mediated alterations in grain yield and quality in Rice

Physiologia Plantarum, Journal Year: 2025, Volume and Issue: 177(2)

Published: March 1, 2025

Rice is one of the most important cereal crops worldwide. To boost its production in a sustainable manner, co-cultivation with Azolla species often used to supplement nitrogen (N) demands. However, beyond N nutrition, physiological and developmental effects azolla on rice remain unclear. This study investigates these mechanisms by analysing growth, inflorescence meristem transcriptomics, yield, grain ionomics plants grown alone (R) or (R + A) non-limiting conditions. During vegetative stage, presence increased allocation resources shoots without affecting root while reproductive it improved panicle architecture, 6% increase length up 26% branching. Nevertheless, this branching R A translated into greater number grains per plant, weight declined. As result, yields were similar between A. There was also an azolla-induced increment several mineral elements grains, notable exception zinc, which declined more than 30%. Finally, altered expression gene families, particular, led upregulation numerous transcription factors from AP2/ERF, WRKY NAM families. Interestingly, genes (including factors) involved resistance pathogens abiotic stresses. Overall, our results suggest that rice-azolla has implications go N-nutrition for intensification production.

Language: Английский

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Assessing Changes in Root Architecture, Developmental Timing, Transcriptional and Hormonal Profiles in Rice Co-Cultivated with Azolla filiculoides

Rice Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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

Frontiers in Soil Science, Journal Year: 2024, Volume and Issue: 4

Published: May 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.

Language: Английский

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Improving marketable yield and phytochemical characteristics of N-fertilized tomato fruits with soil organic amendments through Azolla

International Journal of Vegetable Science, Journal Year: 2024, Volume and Issue: 30(3), P. 294 - 310

Published: May 3, 2024

There is a growing demand for organic vegetable products. Increasing the marketable yield and quality of tomatoes through use optimal inorganic fertilizers critical agronomic measure crop productivity soil health. However, little known about effects Azolla on tomato productivity, fruit changes. The aim this study was to compare fertilization characteristics fruits. A pot experiment conducted with four concentrations nitrogen in completely randomized design. results showed that has potential replace significant impact quality. interactions number clusters per plant, flowers cluster, proportion set, fruits cluster were significant. It can be concluded combination fertilizer linearly increased

Language: Английский

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Addressing Nitrogen-rich Biomass Production Challenges in <i>Azolla microphylla</i> Cultivation from Varying Shading and Water Depth Dynamics

Pertanika journal of tropical agricultural science, Journal Year: 2024, Volume and Issue: 47(3), P. 889 - 904

Published: Aug. 19, 2024

<i>Azolla microphylla</i>, a rapidly growing aquatic fern with the unique ability to fix atmospheric nitrogen, presents significant potential for sustainable agriculture. Despite its nitrogen-fixing prowess, challenges persist in optimizing biomass production, prompting detailed exploration of influential factors this study. This paper addresses persistent challenge nitrogen-rich production <i>Azolla</i> cultivation. Employing split-plot experimental design, study investigates shading percentage (N) and water depth (G) growth, systematically ranging from 0% (full sunlight/N1) 75% (N3) percentages 2.5 cm (G1), 5.0 (G2), 7.5 (G3) depths. In addition assessing growth outcomes, explores nitrogen content under three different conditions: fresh, dried, composted <i>Azolla</i>. Findings unveil influence on N1G2 treatment identified as optimal condition achieving maximum production. Set against backdrop tropical agriculture, specifically within high temperatures Indonesia, our underscores resilience elevated temperatures, highlighting agent. Notably, fresh closely matches urea content, suggesting an organic fertilizer substitute urea. research sheds light critical surrounding <i>Azolla</i>, emphasizing necessity temperature optimization. The insights provided hold significance agriculture practices seeking harness free-air fixator.

Language: Английский

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