Effect of Nano Nitrogen and Nano Zinc on the Growth and Yield of Sweetcorn

Aim: To study the effect of nano nitrogen and nano zinc on the growth and yield of sweetcorn (variety KSP-5389) in Inceptisol of Odisha.Experimental design: The experiment was laid out in randomized block design (RBD) with three replications and eight treatments. The treatments details were T1-Absolute control, T2- RDF (Recommended dose of N: P2O5: K2O :: 80: 40: 40), T3- RDF + Zn @ 5 kg ha-1 , T4- 50 % N + N foliar spray ( Vegetative Stage), T5- 50% N + N foliar spray ( Vegetative Stage + Tasselling), T6- 50% N + N foliar spray ( Vegetative Stage + Tasselling) + Zn foliar spray (Silking stage), T7- 50% N + N foliar spray ( Vegetative Stage + Tasselling) + Zn foliar spray (Silking+Milking), T8- N spray ( Veg+ Tasselling ) + Zn spray (Silking+ Dough). P & K was common to all treatment except control.Place and duration of study: A field experiment was conducted during Rabi season, February 2022 at khujimahal, Chandaka, Faculty of Agricultural Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar Odisha.Results: The results showed that highest biological yield (1685 kgha-1) was found in the application of (50% N with two foliar sprays of nano N at vegetative and tasselling stage and two foliar spray of nano Zn @4ml L-1 at silking and milking stage). Whereas lowest cobyield (691 kg ha-1) was observed in absolute control. Compare with recommended dose of fertilizer with Zn, the application of 50% N with Nano N and Nano Zn as double foliar spray, the yield was increased by 41% whereas 26% yield increase by single foliar application of nano Zn.Conclusion: Highest harvest index HI was found in the application of 50% N with two foliar sprays of nano N at vegetative and tasselling stage and two sprays of nano Zn @4 ml L-1 at silking and milking stage and lowest in control. Application of 50% N with two foliar sprays of nano N at vegetative and tasselling stage and two spray of nano Zn @4ml l-1 at silking and dough stage (T8) helps in increasing the yield of sweet corn as well as nutrient concentration and nutrient uptake followed by T7 (50 % N + N foliar spray at vegetative stage @ 4ml l-1 + Zn spray at Silking and Milking stage).

Performance of Integrated Nutrient Management and Foliar Spray of Micronutrients on Growth, Yield Attribute and Yield of Wheat (Triticum aestivum L.)

A field experiment was conducted during two rabi seasons of 2021-2022 and 2022-23 at Students’ Instructional Farm of Chandra Shekhar Azad University of Agriculture and Technology Kanpur, (U.P.) The experiment was caried out in SPD (Split Plot Design) with fifteen treatment combination were replication thrice. fifteen treatment treatments combination consisted of three organic manure + RDF nutrient source (Control (100% RDF), 100 % RDF + Vermicompost @ 2.5t/ha, and 100 % RDF + FYM @ 5t/ha) put under main plot and five foliar spray of micronutrient control (No spray),Foliar spray of ZnSO4 @ 0.25% at tillering and booting stages, Foliar spray of Nano Zinc @ 0.5% at tillering and booting stages, Foliar spray of FeSO4 @ 0.25% at tillering and booting stages and M5- Foliar spray of ZnSO4 @ 0.25% + FeSO4 @ 0.25% at tillering and booting stages) allotted under sub plot. The study on yield attribute and yield of wheat. The result showed that the maximum increase growth parameters, yield attribute and yield of wheat viz plant height (cm), number of tillers/m2, and leaf area index and number of grain/spike, number spike/m2, total grain weight spike (g) and test weight (1000 grain weight) (g) and grain yield (t/ha) and straw yield (t/ha) recorded significantly higher with F2- 100 % RDF + Vermicompost @ 2.5t/ha treatments. Among the sub plot, M5- foliar spray of ZnSO4 @ 0.25% + FeSO4 @ 0.25% at tillering and booting stages produced significantly maximum highest grain yield (5.95 t/ha) and straw yield (7.94 t/ha)

Influence of Nitrogen and Foliar Application of Nano Zinc on Growth and Yield of Wheat (Triticum aestivum)

The field experiment was conducted to find out the effect of Phosphorus and Iron on growth and yield of Wheatduring Rabi2023 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P). Totally there were ten treatments which were replicated thrice along with control plot. The experiment was laid out in Randomized Block Design. Results that observed that Significant and higher plant height (91.47 cm), number of tillers / hill (7.60), plant dry weight (25.31 g), number of effective tillers/hill (6.00), grains/spike (49.80), test weight (43.40g), grain yield (5.90 t/ha) and straw yield (7.02 t/ha) and also maximum Gross returns (1,15,460.00INR/ha), Net returns (79,447.00INR/ha) and Benefit cost ratio (2.21) was also recorded in treatment 6 (Nitrogen 125% + Nano zinc 4ml).

Effect of Organic Manures and Nano Zinc on Growth and Yield of Wheat

A field experiment was carried out during Rabi season 2022 at experimental field of Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology And Sciences, Prayagraj, Uttar Pradesh, India. The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH7.3), low in organic carbon (0.48%), available nitrogen (230 kg/ha), available phosphorus (13.60 kg/ha) and available potassium (215.4 kg/ha). The treatments consist of organic manures (FYM 10t/ha, panchagavya 3%, FYM 5t/ha + panchagavya 1.5%) and nano zinc (30, 40, 50 ppm) along with control plot (Recommended Dose Fertilizer). The experiment was layout in Randomized Block Design (RBD) with ten treatments each replicated thrice. Higher plant height (91.90 cm), higher plant dry weight (27.27 g), number of tillers/hill (8.67), Crop Growth Rate (11.82), grains/spike (45.12), effective tillers/row meter (73.57), Spikes/running row meter (77.57), grain yield (6.01 t/ha), straw yield (8.49 t/ha), maximum gross return (127712.50 INR/ha), net return (85765.70 INR/ha) and B:C ratio (2.04) were also obtained highest in the treatment 9 [FYM 5t/ha + Panchagavya 1.5% + Nano-zinc 50ppm].

Effect of Nano Zinc and Foliar Application of Boron on Growth and Yield of Finger Millet

A field experiment was conducted during Kharif 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P) to determine the “Effect of nano zinc and foliar application of boron on growth and yield of finger millet (Eleusine coracana L.)”. The experiment was laid out in Randomized Block Design comprising of 10 treatments which include of three levels of [Nano zinc 300 ppm, 600 ppm, 900 ppm] and three levels of foliar application of Boron at [0.1%, 0.3% and 0.5%], whose effect is observed in finger millet. The results revealed that the treatment with application of Nano zinc 900 ppm + Boron at 0.5% recorded higher plant height, number of tillers/plant, plant dry weight, CGR,RGR and yield parameter test weight, seed yield, stover yield and harvest index.

Effect of Nano Nitrogen and Nano Zinc on Growth and Yield of Paddy in Paddy-Paddy Cropping System

An investigation on nano nitrogen and nano zinc with different levels of nitrogen approaches on growth and yield of paddy was conducted during rabi and kharif seasons of 2020-21 and 2021-22 at Krishi Vigyana Kendra, Gangavathi, Koppal, Karnataka, India. The experiment was laid out in split-split plot design with three replications, which consisted of four levels of nitrogen in main plots, three levels of nano nitrogen in sub plots and two levels of nano zinc in sub-sub plots. The treatment with application of 125 per cent Recommended Dose of Nitrogen (RDN) has recorded significantly taller plants (97.11 and 96.54 cm), higher number of tillers hill-1 (19.65 and18.14) and total dry matter (70.06 and 64.54 g hill-1) at harvest stage of crop and the Soil Plant Analysis Development (SPAD) values (46.69 and 42.60) and Normalized Difference Vegetation Index (NDVI) values (0.85 and 0.82) at flowering stage of crop, Similarly, foliar spray of nitrogen @ 4000 ppm has recorded significantly higher plant height (95.44 and 91.33 cm), higher number of tillers hill-1 (17.75 and 16.01), total dry matter (66.84 and 62.31 g hill-1) SPAD values at flowering stage (44.89 and 41.29), NDVI values at flowering stage (0.81 and 0.74), grain yield (5623 & and 6840 kg ha-1) and straw yield (5352 and 6581 kg ha-1). Interaction effect showed non-significant effect with different combination treatments.

Preparation and antibacterial properties of Cu-ZnO-loaded dental veneering porcelain / 口腔疾病防治

Objective@#To investigate the antibacterial properties, biocompatibility and mechanical properties of Cu-ZnO-loaded dental veneering porcelain to provide an experimental basis for the development of new dental veneering porcelain. @*Methods@#Cu-ZnO nanoparticles were added to IPS E.max Ceram for restorative veneer porcelain at different mass percentages of 0 wt%, 1 wt%, 2 wt%, 3 wt%, 4 wt%, 5 wt%, and 6 wt% using ball milling in ceramic powder. A cylindrical specimen with a diameter of 20 mm and a thickness of 2 mm was prepared by high-temperature sintering. Scanning electron microscopy was used to observe the surface morphologies of nano-Cu-ZnO and the specimens. The antibacterial effect of Escherichia coli (E. coli) was quantitatively studied by the plate colony counting method. The CCK-8 method was used to evaluate in vitro the cytotoxicity of the tested piece to mouse fibroblasts (L929). Live and dead cells were observed by fluorescence microscopy. The mechanical properties of modified IPS E. Max Ceram veneering porcelain were tested by a three-point bending strength test. @* Results @# Under the scanning electron microscope, Cu-ZnO appears with a block-like structure and can be seen dispersed in the veneering porcelain. When the nano Cu-ZnO loading was 1 wt%, 2 wt%, 3 wt%, and 4 wt%, the antibacterial rates of the specimens were 24.85%, 67.94%, 96.92%, and 99.99%, respectively, and the difference between the experimental groups and the control group was statistically significant (F = 23.308,P = 0.001). The relative growth rate of each group was greater than 80% after coculture with mouse fibroblast cells (L929) for 1 day and 3 days, and there was no significant difference between the groups. The morphology of L929 cells was normal after coculture for 24 hours. With the increase in the Cu-ZnO concentration, the flexural strength of the specimen exhibited an increasing trend followed by a decreasing trend. The bending strength of the specimen loaded with 3 wt% nano Cu-ZnO reached the maximum value (84.728 ± 6.82) MPa, and there was no statistically significant difference between groups (F = 0.633,P = 0.702).@*Conclusion@#The antibacterial rate of IPS E. max Ceram veneering porcelain loaded with 3 wt% nano Cu-ZnO was more than 96% against E. coli after high-temperature sintering at 750 ℃. The bending strength reached the maximum (84.728 ± 6.82) MPa, and there was no obvious cytotoxicity.

Improving Dye ability and antimicrobial properties of Cotton Fabric.

To improve the dyeability and antimicrobial activity of cotton, the cotton was treated. Firstly, Carboxymethylation was carried out in the cotton fibers to form alkali cellulose. Due to carboxymethylation, the alkali cellulose modifies the crystalline structure of cellulose and increases the accessibility of fibers to chemicals by swelling. Secondly, it padded in a solution content (5 % nano zinc oxide, 4% citric acid) or (6 % titanium isopropoxide, 4% citric acid) or in a solution of 5 % nano zinc oxide, 6 % titanium isopropoxide, 4% citric acid or in a solution of 7% nano zinic oxide, 7% titanium isopropoxide, 4% citric acid, at wet pick up of ca 100%, then dried at 85 °C for 5 min., and cured at 100 °C for 3 min, the latter, we use these fabric in dyeing with synthesized acid dye and commercial basic dye finally, we measure antimicrobial activity for these fabric toward Gram negative and Gram positive.

Foxtail Millet Responses to Bulk and Nano Zinc Oxcide Particles in Water Stress Conditions.

Aims: This study was done to investigate the effects of zinc oxide (ZnO) nanoparticles application on foxtail millet in water stress conditions. Place and Duration of Study: The experiment was conducted at the Agricultural Research Center of Islamic Azad University, Birjand branch, Iran in 2011. Methodology: Experimental design was split plot based on randomized complete blocks with three replications. Two irrigation treatments (control and water stress) and seven ZnO fertilizer (control without ZnO, three levels of bulk ZnO (3000, 6000 and 12000 ppm) and three levels of ZnO nanoparticles (250, 500 and 1000 ppm) were as main plots and sub plots, respectively. Result: The results showed that water stress declined peduncle length, stomatal conductivity, germination percentage and grain yield. Seed protein content increased under water stress but ZnO fertilizer treatments had not any significant effect on the mentioned traits. Effect of ZnO application on Relative Water Content (RWC) at the pre-anthesis stage was significant. The highest RWC before flowering were recorded in the ZnO nanoparticles treatment (250 ppm). Conclusion: The insignificant effect of bulk and ZnO nanoparticles treatments can be attributed to a low level of requirement of this element in millet. Probably, nutrient imbalance in the soil may also have contributed to the prevention of any positive effects of zinc consumption on plant growth parameters.