Integrated nutrient management module to improve productivity and economics of short grain aromatic rice (Oryza sativa)- greengram (Vigna radiata) sequence

The present field study was carried out during 2017–18 and 2018–19 rainy (kharif) and winter (rabi) seasons in order to examine the impact caused by integrated nutrient management (INM) on the yield and quality of the short grain aromatic rice (Oryza sativa L.)-greengram (Vigna radiata L.) combination. Two years experimental data concluded that integration of 50% recommended dose (RD) as fertilizer + 50% RD of nitrogen via farm yield manure (FYM) resulted in considerably higher economic yield (3837.1 and 3917.7 kg/ha) of short grain aromatic rice cv. Nua Acharamati which were at par with 75% RD as fertilizer + green manuring of dhaincha (3438.5 and 3539.1 kg/ha). Pooled data revealed that, residual effect of 50% RD as fertilizer + 50% RD of nitrogen (FYM) and 75% RD as fertilizer + Rhizobium + PSB in greengram recorded the highest number of pods/plant (18.2), seeds/pod (11.3), pod length (9.3 cm), test weight (32.7 g), seed yield (925.7 kg/ha) and stover yield (2240.7 kg/ha) in greengram cv. IPM-02-03. Application of 50% RD as fertilizer + 50% RD of nitrogen (FYM) to aromatic rice recorded the highest hulling recovery (75.8 and 75.5%), milling recovery (68.0 and 68.3%), head rice recovery (60.0, 59.7%) and crude protein content (8.75 and 9.11%) during both of the years experiment being at par with application of 75% RD as fertilizer + green manuring. Economics of the system revealed the highest gross return, net return and B:C ratio by application of 50% RD as chemical fertilizer + 50% RD of nitrogen (FYM) in rice followed by 75% RD as chemical fertilizer + Rhizobium + PSB in greengram

Development of Fish Hydrolysate (Bind-Add+) incorporated extruded pellets and its performance in Tilapia (Oreochromis niloticus) feeding trial

Fish hydrolysate (FH) based Bind-Add+ is a emulsion type feed binder cum additive which contains un-denatured proteins and calcium is capable of reasonable level of gelatinization and contribute to the binding properties which is seen from water absorptive capacity, buoyancy, bulk density and water stability characteristics during extrusion pellet production.. Bind-Add+ has good amount of bio-available primary nutrients, secondary nutrients, micro nutrients, anti-oxidants and pro-biotic in a soluble liquid form and most suitable as additive or feed supplement. Tilapia (Oreochromis niloticus) feeding trial indicate that growth rate and feed utilization efficiency in Bind-Add+ incorporated diets increases significantly in comparison to controlled diet

Study of acoustic parameters of binary mixtures of a nonpolar liquid with polar liquid at different frequencies

The densities (.) and ultrasonic velocities (C) of binary mixture of diisopropyl ether (DIPE) and bromobenzene (BB) have been measured at different frequencies (1 MHz, 3 MHz and 5 MHz) over the entire range of mole fraction of diisopropyl ether (DIPE) at temperature 303 K. The intermolecular free length (Lf), isentropic compressibility (ß), acoustic impedance (Z) and excess values of isentropic compressibility (ßE) and acoustic impedance (ZE) have been computed using values of ultrasonic velocity (C) and density (.). The ultrasonic velocity, intermolecular free length are positive whereas the excess values of isentropic compressibility and acoustic impedance are negative over the entire composition range of DIPE which indicates presence of specific interactions between unlike molecules. The results are discussed in the light of intermolecular interactions occurring in the mixtures. Keywords : Binary mixture, ultrasonic velocity, isentropic compressibility, acoustic impedance, intermolecular free length.Study of acoustic parameters ofbinary mixtures of a non­polar liquid with polar liquid at different frequencies G Nath*, S Sahu and R Paikaray Department of Engg. Physics, Dhaneswar Rath Institute of Engg. and Management Studies (D.R.I.E.M.S.), Tangi, Cuttack-754 022, Orissa, India Post Graduate Department of Physics, Ravenshaw University, Cuttack-753 001, Orissa, India E-mail : [email protected] of Engg. Physics, Dhaneswar Rath Institute of Engg. and Management Studies (D.R.I.E.M.S.), Tangi, Cuttack-754 022, Orissa, India Post Graduate Department of Physics, Ravenshaw University, Cuttack-753 001, Orissa, Indi

Sorption of arsenic onto Vindhyan shales: Role of pyrite and organic carbon

Batch isotherms: for arsenic sorption on Vindhyan shales were compared with arsenic sorption on black cotton soil. High sorption was observed on pyrite-rich shales and the Freundlich capacity constant K-F yielded a good correlation with sediment pyrite content. Shales with high organic carbon sorbed more arsenic; however, the organic carbon-rich soil demonstrated significantly lower sorption. This difference may be due to the condensed nature of organic carbon in shale, which may have facilitated formation of organo-arsenic complexes. The pyrite content was also strongly correlated with the organic carbon content, possibly due to microbial synthesis during shale diagenesis

Sorption behavior of heavy metal pollutants onto shales and correlation with shale geochemistry

The sorption of lead (II) and cadmium ( II) on seven shales belonging to the Proterozoic Vindhyan basin, central India, and a black cotton soil, Mumbai, India, was studied and compared with sorbent geochemistry. The sorption equilibrium studies were conducted under completely mixed conditions in batch reactors ( pH = 5.0 and ionic strength = 0.01 M) at room temperature. The Freundlich model provided better fits to the experimental data compared to Langmuir model. High cadmium and lead sorption was observed for the calcareous shales with greater than 5% CaCO(3). The Freundlich isotherm parameter relating to sorption capacity, i.e., K(F), yielded a strong correlation with the calcium carbonate and calcium oxide content across the various geosorbents studied. The observed sorption pattern may be attributed to complex formation of CaCO(3) with Pb(2+) and Cd(2+) leading to surface precipitation. Moreover, the Ca(2+) present in the sorbents may also involve in ion exchange reaction with lead and cadmium

Surface characteristics of shales and implication on metal sorption

Differences in surface characteristics between alkaline and acidic shales are demonstrated in the present study. The alkaline shales are characterized by convex surface titration profiles, while the acidic shale exhibits a concave titration profile. Analysis of surface functional groups reveal that carboxylic acids predominate in alkaline shales and the acidic shale is characterized by C=S, C=N (pyridine derivative) and urea (C=O) functional groups, while it lacks -COOH group. The close proximity between pH and point of zero charge for the most acidic and alkaline shales indicate that surface complexation may not play a dominant role in sorption when the system pH is controlled by these sediments

Geochemistry of shales from the Paleoproterozoic to Neoproterozoic Vindhyan Supergroup: Implications on provenance, tectonics and paleoweathering

Major, trace and rare earth element (REE) concentrations were measured for eighty eight shale samples from the Paleoproterozoic to Neoproterozoic Vindhyan Supergroup in central India. The major and trace element data of the Vindhyan shales are compared with North American Shale Composite, upper crust, mid-oceanic ridge basalts and many other shale standards of Archean, Proterozoic and Phanerozoic age. REE concentrations of the Vindhyan shales are comparable to the upper continental crust. Various discriminant diagrams were used to reveal the inferred provenance, tectonics and paleoweathering conditions. A predominantly granitic source rock is inferred for the Lower Vindhyan shales, whereas partial contribution from basaltic source is evident during deposition of the Upper Vindhyan shales. Existing paleocurrent data and the present geochemical investigations together suggest Archean-Paleoproterozoic basement rocks, exposed beyond the southern basin margin of the Vindhyan outcrops as the possible source rocks. The deposition of the Vindhyan shales took place in an intracratonic basin where sediments were primarily derived from stable continental areas. Moderate climatic conditions are inferred during the deposition of the shales. The Upper Vindhyan shales, however, reflect more intense weathering compared to the Lower Vindhyan shales, which may be attributed to relative tectonic stability and more humid conditions during deposition of Upper Vindhyan shales. (C) 200

Stratigraphy, sedimentology and bulk organic geochemistry of black shales from the Proterozoic Vindhyan Supergroup (central India)

Four organic-rich shale units of the Proterozoic Vindhyan sedimentary succession have been scanned to reveal their origin and hydrocarbon potential. The wavy-crinkly nature of the carbonaceous laminae is suggestive of a microbial mat origin of the shales. These shales are thus different from Phanerozoic black shales which typically exhibit planar laminae. The hydrocarbon potential of the black shale units has been evaluated by Rock-Eval pyrolysis. Total organic carbon content of many of the shales exceeds 1%. The mean T-max for the black shales translate to a vitrinite reflectance range of 2.05-2.40% Rm based on standard conversion techniques. These shales have reached the catagenetic stage near the beginning of anthracite formation

Projection of Futuristic Climatic Scenario of Cuttack District of Odisha using CMIP5

The Changing climatic scenario is found as the most challenging issue to be faced by the farmers in future for attaining sustainable farm income. This study aimed to explore the projected climate change for Cuttack district of East and South Eastern Coastal plain agro-climatic zone of Odisha using four global climate change Representative Concentration Pathways (RCP) scenarios 2.6, 4.5, 6.0 and 8.5 for four future years 2030, 2050, 2070 and 2090. CMIP5 (Coupled Model Inter comparison Project Phase 5) was employed using bilinear interpolation for downscaling to generate these climate projections with included weather parameters i.e temperature, rainfall and solar radiation for the study area. The model results revealed that the RCP projections of climate change showed an increase in seasonal maximum temperature, minimum temperature and solar radiation and a decrease in the rainfall condition in future for Cuttack district of Odisha for the years 2030, 2050, 2070 and 2090 and there will be an maximum increase in seasonal maximum temperature by 2.56 o C and by 3.96 o C in seasonal minimum temperature in the year 2090 under RCP 8.5 scenario. Hence through the findings of the present investigation it is found that there is a need for farmers of Cuttack district of Odisha to follow necessary adaptation strategies in future to avoid the major risk caused to the agriculture production potential under the changing scenario of climate