Browsing by Author "Sharma, Rohit"
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ThesisItem Open Access Biological evaluation of earthworm meal as a replacement of fishmeal in commercial broiler diets(CSKHPKV, Palampur, 2011) Sharma, Rohit; Sharma, K.S.ThesisItem Open Access Crop diversification and contractual arrangements in Himachal agriculture : A study in patterns, processing and implications(CSKHPKV, Palampur, 2009) Sharma, Rohit; Sharma, H.R.ThesisItem Open Access EFFECT OF PUDDLING INTENSITY, IRRIGATION SCHEDULING AND NUTRIENT SOURCES ON GROWTH AND YIELD OF RICE (ORYZA SATIVA L.) IN RICE-WHEAT CROPPING SYSTEM(Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, 2008) Sharma, Rohit; Kachroo, DileepAn experiment entitled "Effect of puddling intensity, irrigation scheduling and nutrient sources on growth and yield of rice (Oryza sativa L.) in rice-wheat cropping system" was conducted at the research farm, FOA, Main campus, Chatha of SKUAST-Jammu during kharif and rabi seasons of 2005-06 and 2006-07, respectively. The soil of the experimental field was sandy loam in texture, slightly alkaline in reaction (pH-7.4), low in organic carbon (0.46 percent), low in available nitrogen and medium in available phosphorous and potassium. Rice variety PC-19 sown in nursery @ 40 Kg/ha was transplanted, where as wheat variety PBW-343 was sown after the harvest of rice, using 100 Kg seed ha-1. The experiment comprises of 36 treatment combinations was laid out in split plot design consisting of three puddling intensity (Normal practice, 2 times puddling and 3 times puddling), three levels of irrigation scheduling (2 DADPW, 4DADPW and SMP at 150 cm suction) in main plots and four nutrient sources (Vermicompost 3t/ha+inorganic fertilizer, Vermicompost @ 6t/ha, FYM+inorganic fertilizer (50% each) and N, P and K recommend through inorganic fertilizer) in sub plots. The treatments were randomized and replicated thrice. During rabi season the wheat crop was sown as blanket crop for studying the residual effect of the treatments applied in rice Recommended dose of fertilizer i.e. N, P2O5 and K2O were applied as per the treatments in rice, where as in succeeding wheat crop 100 kg N/ha, 60 kg P2O5/ha and 60 kg K2O/ha were applied. The N in case of inorganic fertilizer was applied in three splits, while P2O5 and K2O and N through organic source were applied as basal. Application of three times puddling intensity produced significant increase in yield attributes of rice (No. of tillers/m2, No. of panicles/m2, No. of grains/panicles and grain weight/panicles, profile soil moisture and water expense efficiency), which concomitantly increased the grain and straw yield of rice during both the year of experimentation significantly over normal practice and 2 times puddling. However, the plots received 3 times puddling, percolation rate of water was found to be decreased significantly than normal practice and 2 times puddling. Among the irrigation scheduling SMP at 150 cm suction significantly increased the plant height (g), dry matter (g/m2), No. of tillers/m2, No. of panicles/m2, No. of grains/panicles, grain weight/panicles, grain yield, straw yield, N,P,K uptake and water expense efficiency of rice over 4 DADPW and 2 DADPW. However, under nutrient sources the N, P and K at recommended dose applied through inorganic fertilizer produced significantly taller plant, increased dry matter (g/m2). No. of tillers/m2, No. of panicles/m2, No. of grains/panicles, grain weight/panicles, grain yield, straw yield, N,P,K uptake and water expense efficiency of rice over the application of vermicompost @ 3t/ha+inorganic fertilizer, vermicompost @ 6t/ha and FYM-i-inorganic fertilizer during 2005-06, where as during 2006-07 alone application of vermicompost @ 6t/ha was found to produced significant influence on growth, yield attributes, grain yield and N, P, K uptake of rice. Apart from this alone application of vermicompost @ 6t/ha not only decreased the percolation rate of water but also showed increasing trend towards water expense efficiency and profile soil moisture. The positive significant correlation were observed between grain yield and No. of tillers/m2, 1000- grain weight, N, P and K uptake, where as negative correlation was obtained with the percolation rate of water (cm/day). Residual effect of nutrient sources noticed on of succeeding wheat crop, revealed that the application of vermicompost @ 6t/ha gave significant increase in grain and straw yield of wheat over vermicompost applied @ 3t/ha+inorganic fertilizer, FYM+inorganic fertilizer and recommended application of N, P and K through inorganic fertilizers. The interaction effect between puddling intensity (3 times puddling) irrigation scheduling (SMP at 150 cm suction), puddling intensity (3 times puddling) and nutrient sources (vermicompost @ 6 t/ha) was found to be significant in realizing the grain yield of rice. It is therefore, concluded that the application of three times puddling, irrigation SMP at 150 cm suction and vermicompost @ 6t/ha not only increased the yield and yield attributes of rice but also produced the highest water expense efficiency, besides decreased the percolation losses. The residual effect of nutrient sources with application of vermicompost @ 6 t/ha improved the yield of wheat significantly.ThesisItem Open Access Effect of Zinc Fortification on Performance of Maize (Zea mays L.) Under Rainfed Conditions of Jammu(Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, 2023-11-06) Kumari, Anchal; Sharma, RohitAn experiment entitled “Effect of Zinc Fortification on Performance of Maize (Zea mays L.) Under Rainfed Conditions of Jammu” was conducted at the Research Farm of ACRA, Rakh Dhiansar, Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu, during kharif season of 2022, with the objective to fortify maize crop with zinc besides assessing the response of zinc on growth, yield attributes, yield and nutrient uptake by maize. The soil of experimental site was sandy loam in texture, neutral in reaction, low in organic carbon, available nitrogen and DTPA-zinc but medium in available phosphorus and potassium. The experiment was laid out under Randomised block design with three replications comprised of twelve treatments of zinc fortification. The experimental results revealed that seed treatment with ZnSO₄ @ 4g kg-1 seed + foliar application of 0.5% ZnSO₄ at tasseling and silking stage recorded significantly higher values for growth parameters, yield attributes and yield viz. number of cob plant-1, Length of cob, cob weight ,100 grain weight, grain and stover yield. However, higher nutrient uptake in grain and stover was also observed in seed treatment with ZnSO₄ @ 4g kg-1 seed + foliar application of 0.5% ZnSO₄ at tasseling and silking stage while significantly lower values were recorded under control. Economics of maize crop revealed that among the different treatments, seed treatment with ZnSO₄ @ 4g kg-1 seed + foliar application of 0.5% ZnSO₄ at tasseling and silking stage was the most remunerative treatment with highest net returns and B:C ratio to the tune of ₹ 87519 ha-1 and 2.54 respectively. Hence, seed treatment with ZnSO₄ @ 4g kg-1 seed + foliar application of 0.5% ZnSO₄ at tasseling and silking stage emerged as an effective approach for zinc fortification in maize under rainfed conditions of Jammu region besides enhanced growth and yield of maize cropThesisItem Restricted Engineering characterization of selected cereal grain and legume crops for physical quality determination using machine vision technology(Punjab Agricultural University, Ludhiana, 2021) Sharma, Rohit; Mahesh KumarA study was undertaken for the determining relevant engineering properties for physical quality estimation of selected wheat and green gram refractions using machine vision technology. The most common wheat varieties PBW 725 and Unnat PBW 343 and green gram varieties SML 832 and SML 668 were considered for the present study. The kernels were grouped into four categories such as sound grains, damaged grains, shriveled grains and broken grains for wheat. The type of grains for green gram include sound grains, shriveled grains, discolored grains and broken grains. For image acquisition, Digital images of one hundred kernels of each selected refraction of wheat and green gram were acquired using the flatbed scanner model CanoScan 5600F with CCD 6-line color with white fluorescent light source. The computer programming language Python version 3.7 and OpenCV image processing library were used for analysis of the images. A total of 30 features related to size and shape (14 features), color (10 features) and texture (6 features) of the selected kernels. For each category of refractions, red (R), green (G), and blue (B) color densities were extracted. Algorithms have been developed for analysis of images of refraction. A linear relationship was obtained between actual and predicted lengths and widths of selected refractions. The experimental results for length of refractions were found non-significant in comparison to predicted value at 95% confidence interval with R2 in the range of 0.81–0.94. The comparison results for width for all refractions are found statistically non-significant at 95% confidence interval and R2 was in the range of 0.73–0.92 for wheat refractions of both selected varieties. The paired samples t-test results showed that all parameters determined with image processing method was not significantly (P>0.05) different from the same parameters measured with vernier caliper. Another linear relationship was found between individual kernel weight and projected area with R2 in the range of 0.51 to 0.92 and between the volume of refractions derived from measured dimensions and calculated from image with R2 in the range of 0.75 to 0.93 for both wheat varieties. Correlation behavior between different parameters were observed using pearson correlation matrix. It was observed that in all wheat and green gram refractions, the individual kernel weight was found correlated significantly with projected area, perimeter, major diameter, feret diameter arithmetic mean diameter, geometric mean diameter, surface area and volume of kernels.ThesisItem Open Access Growth performance of Brassica cultivars under elevated temperature gradients under present climate change scenario in Gwalior, Madhya Pradesh(RVSKVV, Gwalior (M.P.), 2022) Sharma, Rohit; Sharma, Dr. AmitaThesisItem Open Access Screening of pigeonpea [Cajanus cajan (L.) Millsp.] genotypes against pod pest complex(Department of Entomology Institute of Agricultural Sciences Banaras Hindu University Varanasi, 2020) Sharma, Rohit; Ram KevalThe pigeonpea was infested with the number of insect pests at various stage of crop growth. Out of which the incidence pattern of M. obtusa, C. gibbosa, H. armigera, L. boeticus and E. atomosa was studied. The result of the investigation pertaining to the “Screening of pigeonpea [Cajanus cajan (L.) Millsp.] genotypes against pod pest complex” was carried out in 2018-19 at the Agricultural Research Form, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi. These insects were studied during reproductive phase of the crop during 2018-19 the first incidence of pod fly, M. obtusa was observed in all genotypes during the 4th standard week of 2018-19. The various peak of the pod fly population was reported in different genotypes from the 6th standard week to the 11th standard week. The peak population of maggots was observed in the 11th standard week in the genotype MAL- 13 (AVT1), AVT1-704, AVT1-706 and AVT1-709 with population of (2.61 maggots/plant), (2.42 maggots/plant) and (2.40 maggots/plant), respectively. During the 4th standard week of 2018-19 the first occurrence in the MAL- 13 (AVT1) genotype of pod bug was also observed in all genotypes with a cumulative population of (1.13bug / plant) in the 4th standard week followed by AVT1-706 (1.06bug / plant), AVT1-705, (1.03bug / plant) during the first week. Pod bug populations have continued in the genotype from Standard 4th to Standard 12 Week 2018-19. Pod bug populations during the 12th standard week were reported to be the highest in nearly all genotypes. The pooled mean population of gram pod borer was recorded highest in the genotype MAL-13 (AVT1) (check) (0.92 larva/plant) lowest in AVT1-707 (0.41 larva/plant). L. boticus was observed at 4th standard week with the first occurrence of blue butterfly. Population significantly differentiated among the genotypes screened in the genotype AVT1-707 with a maximum population of (0.14 larva/plant) followed by MAL-13 (AVT1) AVT1-704 & AVT2-903 AVT1-7017 & AVT2-906, AVT1-706, MAL-13 (AVT2) and AVT1-702 & AVT2-904 with population (0.04 larva/plant) in the first week. Pod damages were primarily caused by pod fly, pod bug and gram pod borer in the long duration genotype of pigeonpea. The damage ranged from 27.33 percent to 51.00 percent for pod fly, from 12.00 to 23.00 percent for pod bug and from 3.67 to 7.67 percent for gram pod borer in damage seen in all 18 genotypes in 2018-19 respectively. The damage caused to the grain by the genotype for long-duration pigeonpea has been primarily attributed to pod fly, pod bug and gram pod borer. This ranged from 12.68% to 30.52% for pod fly, 4.71% to 8.93% for pod bug and 0.79% to 3.80% for gram pod borer. Among the 18 genotypes that were screened, AVT1-707 and AVT1-704 followed by AVT1-709 and AVT2-902 the resistance and tolerence with pod fly, pod bug and pod borer damage has been observed, as well as the grain yield has been maximum.ThesisItem Open Access Standardisation Of Round The Year Management Techniques For The Control Of Lantana (Lantana Cumara (L.) Var. Aculeata)(CSK Himachal Pradesh Krishi Vishvavidyalaya;Palampur, 2008) Sharma, Rohit; Saini, J.P.; CSK Himachal Pradesh Krishi Vishvavidyalaya; PalampurThesisItem Open Access Studies on anti-immunosenescence potential of probiotic lactobacilli fermented milk.(NDRI, Karnal, 2014) Sharma, Rohit; Kapila, RajeevThesisItem Open Access Studies on polyphenolic profile of Kangra tea [ Camellia sinensis (L) O Kuntze] cultivars(CSKHPKV, Palampur, 2009) Sharma, Rohit; Sud, R.G.ThesisItem Open Access A study of knowledge and adoption behaviour of soybean growers in Sehore district of Madhya Pradesh(jnkvv, jabalpur, 2007) Sharma, Rohit; Ahirwal, Pawan Kumar