10 research outputs found
The Folio: F. C. C. Magazine
No full textMaqbool Ahmad Bhatty-Editorial. pp. 1-2; Om Prakash Bhagat-I Remember You. pp. 2; AShiv Kumar Lal-Poetry-A Bit of Clay. pp. 2; Manmohan Nath-Article-The Late H. G. Wells. pp. 2-4; Poetry-A Reverie. pp. 4; Gilani, S. A. S.-Story-The Haunted Valley. pp. 5-6; Virendar Laroia-Poetry-Grave Humour. pp. 6; Ayoob Ali-Article-Religion in Life. pp. 7-8; Bates, Marquis A.-Story-Palmists and Palmistry. pp. 8-10; Jaipal Nangia-Poetry-The Riddle of the Fluttering Leaves. pp. 11; Saran Singh-Story-A Return Journey. pp. 11-12; Baljit Singh-Travelogues-A Trip to Jogindarnagar. pp. 13-14; Obituary Notices. pp. 15; [Hindi]. 8 p.; The Folio [Urdu]. 6 p.The Late Professor S. M. Paul. after page 1
Study on the Greenhouse Gas (Ghg) Emissions from Rice Field Under Various Nutrient Management Practices
No full textModernizing traditional farming practices and intensive cultivation on limited land has increased the reliance on fertilizers to maintain soil health. The study was conducted on rice crop from 2022 to 2023. The seven treatment combinations in which recommended dose of nitrogen applied through neem coated urea (NCU) and nano urea, viz., T1:Control (No nitrogen), T2: 1/3rd as (NCU) as basal) + 1/3rd NCU at active tillering (AT)) + 1/3rdNCU at panicle initiation (PI)), T3: 1/3rd NCU as basal + 1/3rd NCU at AT + 2sprays of NU at maximum tillering -MT and PI) @ 2 ml / litre), T4: 1/3rd NCU as basal + 1/3rd NCU at AT + 1 spray of nano-urea at PI @ 4 ml / litre), T5: 1/4 NCU as basal + 1/4 NCU at AT +2 sprays of nano-urea (at MT and PI) @ 2 ml / litre), T6 :1/3rd NCU as basal + 2 sprays of nano-urea (at AT& PI) @ 2 ml / litre), and T7: 1/3rd NCU as basal + 3 sprays of nano-urea (at AT, PI, and heading) @ 2 ml / litre). The study revealed significant differences in GHG emissions, particularly nitrous oxide (N₂O) and carbon dioxide (CO₂), among the different fertilizer management practices. The highest (p=??) N₂O emissions were observed in the T2 treatment {1/3rd RDN (NCU as basal) + 1/3rd RDN (NCU at active tillering) + 1/3rd RDN (NCU at panicle initiation)} at 352 kgCO₂eha⁻¹, while the lowest emissions were recorded in the T1 treatment (Control – without nitrogen) at 88.4 kgCO₂eha⁻¹. Similarly, CO₂ emissions were also the highest in the T2 treatment at 1376 kgCO₂eha⁻¹, with the control (T1) recording the lowest at 1165 kgCO₂eha⁻¹. Methane emissions, mainly influenced by water regimes, remained consistent across all treatments, each contributing 2112.3 kgCO₂eha⁻¹, due to similar water management across all treatments. Overall, total GHG emissions were significantly higher in fertilized treatments, with the T2 treatment exhibiting the highest total emissions of 3841 kgCO₂eha⁻¹, while the control had the lowest at 3366 kgCO₂eha⁻¹. These findings highlighted the complex trade-offs between enhancing rice yields through improved nutrient management and the associated increase in GHG emissions, emphasizing the need for strategies that balance productivity with environmental sustainability
Raising rice productivity and sustainability for smallholders of south Asia under changing climate
No full textRaising rice productivity and sustainability for smallholders of south Asia under changing climate
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Physiological mechanism and nutrient management strategies for flood tolerance in rice grown in lowland flood prone ecosystem
No full textRole of recrystallization and pearlite dissolution in industrial processing of DP590 steels
No full textDual-phase (DP) steels derive their perfect blend of properties via the hard second phase, namely
martensite or bainite in a softer ferrite matrix. The key to refine the mechanical properties of DP steels
rests on optimizing and tailoring the distribution and size of the hard second phase present in the ferrite
matrix. There can be several combinations of processing routes depending on the governing
mechanisms, such as recrystallization, pearlite dissolution, phase transformation, etc., which can affect
the morphology and distribution of martensite phase present in DP microstructures. All these
mechanisms are invoked at various stages of annealing process cycle. In the present study, experimental
simulation of various annealing parameters was carried out on a cold-rolled steel using a custom
designed annealing simulator. The evolution of microstructure was studied by field emission scanning
electron microscope. The evolving microstructures were correlated with governing mechanisms of
recrystallization, pearlite dissolution, and phase transformation. Through these simulations, it was
possible to tailor the microstructure and consequently improve the tensile properties of the DP steel
Optimizing Dosage and Mode of Potassium Application for Rice in Drought-Prone Rainfed Ecology of Middle Indo-Gangetic Plains
No full textEvaluating the Effects of Fertilizer Deep Placement on Greenhouse Gas Emissions and Nutrient Use Efficiency in Wet Direct-Seeded Rice During the Wet Season in Assam, India
No full textMitigation of greenhouse gases (GHGs), improving nutrient-use efficiency (NUE), and maximizing yield in rainfed lowland rice cultivation poses significant challenges. To address this, a two-year field experiment (2020 and 2021) was conducted in Assam, India, to examine the impact of different fertilizer-management practices on grain yield, NUE, and GHGs in wet direct-seeded rice (Wet-DSR) during the kharif season. The experiment included eight treatments: control; farmer’s practice (30-18.4-36 kg N-P2O5-K2O ha−1); state recommended dose of fertilizer (RDF) @ 60-20-40 kg N-P2O5-K2O ha−1 with N applied in three splits @ 30-15-15 kg ha−1 as basal, at active tillering (AT), and panicle initiation (PI); best fertilizer management practices (BMPs): 60-20-40 kg N-P2O5-K2O ha−1 with N applied in three equal splits as basal, at AT, and PI; and fertilizer deep placement (FDP) of 120%, 100%, 80%, and 60% N combined with 100% PK of RDF. The experiment was arranged out in a randomized complete block design with three replications for each treatment. The highest grain yield (4933 kg ha−1) and straw yield (6520 kg ha−1) were achieved with the deep placement of 120% N + 100% PK of RDF. FDP with 80% N + 100% PK reduced 38% N2O emissions compared to AAU’s RDF and BMPs, where fertilizer was broadcasted. This is mainly due to the lower dose of nitrogen fertilizer and the application of fertilizer in a reduced zone of soil. When considering both productivity and environmental impact, applying 80% N with 100% PK through FDP was identified as the most effective practice
