Conjoint application of nano-urea with conventional fertilizers: An energy efficient and environmentally robust approach for sustainable crop production

Upadhyay, Pravin Kumar; Dey, Abir; Singh, Vinod Kumar; Dwivedi, B. S.; Singh, Tarunendu; Rajanna, G. A.; Rathore, Sanjay Singh; Singh, Rajiv Kumar; Shekhawat, Kapila; Rangot, Meenakshi; Kumar, Pradeep; Yadav, Dhinu; Singh, Devendra P.; Dasgupta, Debarshi; Shukla, Gaurav

doi:10.1371/journal.pone.0284009

Cited by 27 publications

(10 citation statements)

References 39 publications

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“…In our study, we found that there are some effects of nano-urea on the growth and yield of wheat but cannot replace a bag of urea (45 kg urea or 20.7 kg of N) as claimed by product manufacturers. However, a recent research has supported two foliar sprays of nano-urea reduced the nitrogen load by 25% without negatively impacting crop yield of wheat, maize, mustard and pearl millet 45 .…”

Section: Discussionmentioning

confidence: 99%

Boosting wheat yield, profitability and NUE with prilled and nano urea in conservation tillage

Kumar,

Tripathi,

Yadav

et al. 2023

Sci Rep

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Rice–wheat production in the Indo-gangetic plains (IGPs) of India faces major concerns such as depleting resources, rice residue burning, excessive fertilizer use, and decreasing nitrogen use efficiency. These issues threaten sustainable crop production in the future. Therefore, a field study was conducted during the winter seasons of 2020–21 and 2021–22 to evaluate the effect of combined conventional and nano fertilizers on nitrogen application just before or after irrigation to improve wheat productivity, profitability and NUE under conservation tillage. The study evaluated eight treatment combinations of nitrogen application through conventionally applied urea (46% N) and foliar applied nano urea (4% N) under zero tillage with rice residue retention. Results revealed that growth, physiological indices, yield, and quality parameters were enhanced with the application of 150 kg N/ha in three equal splits as basal and just before 1st and 2nd irrigation alone (T2) or along with a spray of nano urea (T5) compared to other treatments. T5 recorded 7.2%, 8.5%, and 7.8% more plant dry matter, number of tillers, and grain yield, respectively, over the conventional practice of applying 150 kg N/ha in three equal splits as basal and 7–10 days after 1st and 2nd irrigation (T3, farmers practice). Although, T2 showed similar results to T5, T5 recorded significantly higher gross ($2542/ha) and net returns ($1279/ha) than the other treatments. However, the benefit–cost ratio of T2 and T5 was same (2.01). A significant and positive correlation coefficient between grain yield and physiological parameters such as CCI and NDVI confirmed that increasing the nitrogen dose enhanced the chlorophyll content, greenness, and plant vigor. Based on the results, it can be concluded that applying 150 kg N/ha in three equal splits as basal and just before 1st and 2nd irrigation under conservation agriculture, along with a single spray of nano urea (4% N) at 60–65 days after sowing, can improve growth, yield attributes, wheat yield, and NUE compared to farmers practice (T3) in India.

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Section: Discussionmentioning

confidence: 99%

Boosting wheat yield, profitability and NUE with prilled and nano urea in conservation tillage

Kumar,

Tripathi,

Yadav

et al. 2023

Sci Rep

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“…Nano urea, being in nanoparticle form, likely provides a more controlled and sustained release of nitrogen, ensuring a consistent nutrient supply during critical growth stages. The higher yield in nano urea may be linked to improved photosynthetic efficiency (Upadhyay et al, 2023). Nano urea, as previously mentioned, likely contributes to increased interception of sunlight for photosynthesis due to sustained nitrogen availability (Astaneh et al, 2021).…”

Section: Measurement Of Yieldsmentioning

confidence: 91%

“…This increased translocation efficiency is associated with the smaller particle size of nano urea, allowing for better mobility within the plant's vascular system. Furthermore, the application of nano urea contributed to an elevated and sustained nitrogen supply during critical growth stages (Upadhyay et al, 2023). This sustained nitrogen availability facilitated an extended period of enhanced photosynthetic activity.…”

Section: Yield Attributing Parametersmentioning

confidence: 99%

Response of spring rice (Oryza sativa L.) varieties to different nitrogen application methods at Nawalparasi West, Nepal

Bhatt,

Ghimire,

Paudel

et al. 2024

Turkish JAF Sci.Tech.

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Rice (Oryza sativa L.) cultivation necessitates an adequate supply of nitrogen to achieve optimal growth and yield. This study, conducted in Nawalparasi West from February to June 2023, aimed to assess the effects of nitrogen management through a foliar spray of nano urea, compared to need-based nitrogen management using the Leaf Color Chart (LCC) and the Recommended Dose of urea Fertilizer (RDF) application. The experiment followed a Randomized Complete Block Design (RCBD) with three replications, incorporating four nitrogen management levels (Control, RDF through urea fertilizer (120 kg/ha), 25% of RDF through basal urea (30 kg/ha) + nano urea, and 25% of RDF through basal urea (30 kg/ha) + (LCC) and two rice varieties (Chaite-5 and Hardinath-1). The results indicated that the LCC-based treatment produced the highest grain yield at 5.18 mt/ha, statistically similar to the yield of the nano urea-based treatment (5.04 mt/ha). The enhanced yields were attributed to more effective tillers per m² (260.17 tillers/m² and 253.17 tillers/m², respectively), longer panicle length (28.12 cm and 25.99 cm), more filled grains per panicle (210.03 and 215.73), and lower sterility percentage (24.93% and 26.95%). Despite comparable yields, nano urea application proved to be more cost-effective [97,926.10 Nepalese Rupees (NRs)] with a higher benefit-cost ratio (1.78) and greater ease of application for farmers compared to the LCC. Varietal responses varied, with Hardinath-1 exhibiting the highest yield with LCC-based nitrogen application (5.37 mt/ha), and Chaite-5 demonstrating the highest yield (4.778 mt/ha); with nano urea-based nitrogen application (5.31 mt/ha). Chaite-5 displayed a greater effective number of tillers per m² (241.42 tillers/m²) and filled grains per panicle (224.56). Consequently, it is suggested that nano urea-based nitrogen application, particularly in conjunction with a variety of Chaite-5, holds the potential for improved productivity.

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“…This not only diminishes the requirement for nitrogen fertilizers and amplifies nitrogen utilization by plants but also curtails the adverse environmental impact, concurrently safeguarding agricultural yields [ 53 ]. In comparison to traditional nitrogen fertilizers, nano-nitrogen fertilizers exhibit notable advantages in enhancing crop yield and quality [ 54 ]. The precision of the release mechanism in nano-nitrogen fertilizers results in a more consistent and even supply of nitrogen, contributing to the maintenance of stable nitrogen levels in crops throughout the growth cycle.…”

Section: Nano-fertilizers In Farmingmentioning

confidence: 99%

Nano-Pesticides and Fertilizers: Solutions for Global Food Security

Tang,

Zhao,

Zhu

et al. 2023

Nanomaterials

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Nanotechnology emerges as an important way to safeguard global food security amid the escalating challenges posed by the expansion of the global population and the impacts of climate change. The perfect fusion of this breakthrough technology with traditional agriculture promises to revolutionize the way agriculture is traditionally practiced and provide effective solutions to the myriad of challenges in agriculture. Particularly noteworthy are the applications of nano-fertilizers and pesticides in agriculture, which have become milestones in sustainable agriculture and offer lasting alternatives to traditional methods. This review meticulously explores the key role of nano-fertilizers and pesticides in advancing sustainable agriculture. By focusing on the dynamic development of nanotechnology in the field of sustainable agriculture and its ability to address the overarching issue of global food security, this review aims to shed light on the transformative potential of nanotechnology to pave the way for a more resilient and sustainable future for agriculture.

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Conjoint application of nano-urea with conventional fertilizers: An energy efficient and environmentally robust approach for sustainable crop production

Cited by 27 publications

References 39 publications

Boosting wheat yield, profitability and NUE with prilled and nano urea in conservation tillage

Boosting wheat yield, profitability and NUE with prilled and nano urea in conservation tillage

Response of spring rice (Oryza sativa L.) varieties to different nitrogen application methods at Nawalparasi West, Nepal

Nano-Pesticides and Fertilizers: Solutions for Global Food Security

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