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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    Studies on performance evaluation of battery-cum-manually operated boom sprayer under lab and field condition
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-11) Ayush; Arun Kumar
    Plant protection activities are most important practices during crop production. The application of fungicides, herbicides, and insecticides is one of the most recurrent and significant tasks in agriculture. Conventional agricultural spraying techniques have made the inconsistency between economic growth and environmental protection in agricultural production. For pesticide application,the parameters like area of the plant canopy, area of a plant leaf, height of the crop, and volume of plants related to plant protection product applications are very important for obtaining better results.Common plant protection equipments include Knapsack sprayers (manual and power operated), foot sprayer, tractor mounted sprayer in India. Most of the sprayers spray chemical from the top of the plant which causes improper spray distribution in case of crops with dense or medium canopy. The pest and insets present inside the canopy and under the leaves are not affected by this spray which leads to infestation and damage even after spraying. Several problems due to use of conventional backpack sprayers arise. Fatigue is produced to the operator due to carry of heavyweight backpack sprayer for a long time. For reducing the above problem, it was felt to develop and modify low cost battery cum manually operated boom sprayer. It was suitable for small land holding farmers and had low cost of operation. The performance of the modified sprayer was evaluated in both laboratory and field condition to ensure that the objectives are fulfilled. Under laboratory conditions, sprayer was tested in both manual and battery mode of operation. The independent parameters for lab test were nozzle type (flat fan), stroke length (full and medium), speed of operation (1, 1.5 and 2 km/h), nozzle height (300 mm), and level of tank (1/4th ,1/2th, 3/4th and full). The boom sprayer performance evaluation was evaluated in the Dept. of Farm Machinery and Power Engineering on the concrete surface and discharge rate as well as pressure was measured. The modified boom sprayer should be operated at 1 to 1.5 km/h speed of travel at any selected level of tank at full stroke length (i.e. 45 mm) in manual mode operation. The machine was tested in the field on turmeric crop at three different speeds (1, 1.5 and 2 km/h). The water sensitive paper were tagged at the different positions of the plant canopy and to check their percentage coverage, volume median diameter, image area, deposits/cm2 and deposition μL/cm2, Deposit scan software is used. This software is free and open source by the USDA (United States Department of Agriculture) for the spot evaluation of spray quality. It was found that, in field condition, the developed sprayer should be operated at 1.5 km/h speed of travel and with the help of these flat fan nozzles we could get the desired image area, deposits/cm2, and deposition for the different position of plant canopy as well as sufficient to eradicate pests and diseases.
  • ThesisItemOpen Access
    Design and development of tractor operated onion digger with cutter bar topping unit
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-07) Naik, Mude Arjun; Pateriya, R.N.
    A tractor drawn onion digger with cutter bar topping unit which unites the benefits of topping and digging together, along with soil separation unit was designed and developed for onion crop. It comprised of a topping unit, digging unit, soil separation unit, power transmission unit, windrowing unit, main frame, and three point hitch. A standard reciprocating type cutter bar with a total cutting width of 750 mm was used as a topping unit. An inverted V- shaped blade of 650 mm was used as digging unit which was fixed to the base plate with nuts and bolts. For the conveyor a rectangular sieve with the overall dimensions of 700 × 550 mm was used for separating the onion from the soil. It was supported by two passive rollers made up of 50.8 mm diameter pipe and 550 mm length on which the canvas endless belt of 50 mm thickness was rotating over both the ends of the rollers. 20 × 55 mm MS flats are bolted perpendicular on the belt with a span of 250 mm gap between two successive flats which helps to pass the soil through the gap between the flats. A power transmission unit consisted of gear box, V- belts, shafts, and pulleys. Pulleys were used to transmit the power and maintain the speed ratio of 3:1 and 2.4:1 for conveying and topping unit respectively. The total weight of the onion digger with topper was 135 kg. The maximum stress, strain and deflection on digging unit in finite element analysis (FEA) using solid works software was found as 2.975×106 N m-2, 3.172×10-2 mm, 9.729×10-6 respectively. The physical and agronomical properties as found equatorial, polar diameter, shape index, bulk density, plant height and number of tillers per plant was measured and found to be 44.75 mm, 43.34 mm, 1.01, 561 kg m-3, 28.76 mm, 5 number respectively. Field evaluation of machine was conducted to optimize the independent parameters such as moisture content (9.5, 11.65, and 13.0%) (dry basis), rake angle (10,15, 20°) and speed of operation (2.5,3.25,4.0 km h-1) by using central composite design (CCD) in response surface methodology (RSM). The optimum conditions for maximum digging efficiency (93.76%), minimum damage percentage (6.44%) and topping efficiency (78.46%) were found at 11.39% (dry basis) moisture content, 15.12° rake angle and 3.11 km h-1 speed of operations respectively. For optimum values of independent parameters the theoretical field capacity, actual field capacity and field efficiencies were calculated 0.20 ha h-1, 0.17 ha ha-1, and 85% respectively. 4.94 hours were required to cover one hectare land using tractor operated onion digger with cutter bar topping unit that cost about rupees 2,284.88/- per ha which is 59.37 % less as compared with manual digging (Rs. 5,625/- per ha).
  • ThesisItemOpen Access
    Study on wear characteristics of cultivator reversible shovels and its FEM analysis
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-11) Reddy, Puchala Harsha Vardhan; Singh, R.P.
    Cultivator is one of the most used agricultural implement by Indian farmers, they faces problem of wear in its working parts. The reversible shovels are mostly used cultivator shares and they are manufactured by local manufacturers without any standard in dimensions and material as well, that affects the operational life of the shovel. To know the wear characteristics of the commercially available reversible shovels, three different make shovels were selected and a study was conducted in the fields of HRC, Pantnagar by mounting them on a nine tyne spring cultivator. The study was carried out for 100 h and the wear was analyzed both gravimetric and dimensional for each time intervals of 10, 20, 40, 60, 80 and 100 h of operation. The study reveals that the shovel S3 shows low gravimetric wear followed by S1 and high for S2. The dimensional wear was high for S3 followed by S1 and low for S2 because S2 was thicker than other two shovels. In India, there are only few registered cultivator manufacturers and most of the cultivators are manufactured by local artisans which encounter problems of failure under different load conditions. The stress analysis of locally manufactured cultivator tyne was analyzed by FEM (static simulation) using SolidWorks 2016 parametric design software. The analysis shows that the locally manufactured tynes had minimum factor of safety of 18. In general, machine design was carried out with minimum factor of safety as 2, so the dimensions of the tyne should be reduced in order to save the material and energy related to it that helps in cost reduction of cultivator. The maximum displacement (deflection) was observed at tip of the shovel, this indicates that the tip of shovel is subjected for wear first and same was revealed from field studies.
  • ThesisItemOpen Access
    Development of a machine for residue management of combine harvested paddy field
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-02) Ramulu, Chelpuri; Pateriya, R.N.
    Burning of paddy residue is a critical issue that leads to inimical affect on environment. Management of crop residues in conservation agriculture is an essential for long-term sustainability of Agriculture. The paddy residue management includes straw cutting, chopping and their incorporation with soil. Residue incorporation was the most effective practice for enhance both agricultural productivity and sustainability by improving the soil health and fertility. As per the available literature that there is no such appropriate machine which can cut, chop and incorporate of paddy residue in a single pass. The present developed residue management machine can perform chopping of paddy residues and mix with the soil of combine harvested paddy field. This developed machine consists of chopping unit, incorporation unit, adjustable frame, pulleys and belts. The power is transmitted to the chopping unit and incorporation unit by tractor (55.95kW) PTO with the help of gear box, belt, pulley and gear arrangement. The fuel consumption, field capacity and field efficiency of residue management machine were observed 12.5-14.0 l/h, 0.43-0.64 ha/h and 60.46 % respectively. The four independent parameters selected for study were rotary speed (R1 =900 & R2 = 1100 rpm), forward speed (F1 = 2.1 & F2= 3.0 kmph), horizontal adjustment (H1 = 550 & H2= 650 mm) and vertical adjustment (V1 = 100 &V2= 200 mm) between straw chopper shaft and rotavator shaft and its effect was found on incorporation efficiency, shredding efficiency and trash size reduction of chopped paddy residues. The incorporation of residue and shredding efficiency were found highest at V1H2F1R2 (95.31%) and V1H2F1R2 (61.92 %) arrangements respectively. The trash reduction of chopped paddy residue was recorded maximum at V1H2F2R2 (40.58%) arrangement. Cost economics of developed residue management machine was compared with existing technologies adopted by farmers i.e. straw chopper + 2 rotavator practice and 6 harrowing + rotavator + planker practice. The cost of operation of developed residue management machine was observed 4272.8 Rs.ha-1 lower than existing technologies. The breakeven point (BEP), payback period and benefit cost (B:C) ratio of the developed residue management machine were 45 ha, 0.7 years and 1.17 respectively. Therefore, it is concluded that the developed residue management machine can be recommended to the farmers for paddy residue management of combine harvested paddy field.
  • ThesisItemOpen Access
    Investigation on wear pattern of various makes of agricultural discs
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-09) Annu Rani; Singh, T.P.
    Mechanization of agriculture involves the use of different machineries in farming operation right from ploughing to marketing of produce. In underdeveloped countries like India, farmers require low cost machinery so they generally prefer locally available equipment. Tillage equipment such as disk harrow, which is used for both primary and secondary tillage, have become common in modern Indian agriculture as disc tillage implements are impressively applicable over a wide range of soil conditions. It has been seen that disc tillage implements imposes recurrent downtime and replacement cost on farmers as the farmers use locally available discs manufactured by small scale industries. The study has been undertaken to find the best suitable disc among the various commonly used makes available in Indian market and to estimate the life of each disc so the farmers can keep sufficient stock aforetime, thus reducing downtime and replacement cost. The agricultural discs have large surface area exposed to the abrasive medium i.e. soil and thus they are subjected to large abrasion due to the soil particles. An experiment was conducted to determine the wear of various makes (M1, M2, M3 and M4) of discs as weight reduction, radius reduction and thickness reduction in circular soil bin;and the effect of different soil (sand and silty-clay-loam), operating speed viz.2.5, 3.5 and 4.5 km/h and soil moisture content on wear was taken into consideration.The data obtained from the laboratory test was then compared to the field test conducted at soil moisture content of 12-14 % with 4.5 km/h forward speed and depth of operation as 10 cm. The test was conducted in rice harvested field with duration of work 100 hours. According to both field and laboratory conditions, mathematical correlations were developed relating wear to different operating conditions. The maximum wear was found at 6-8 percent moisture range in both sand and silty-clay-loam and the wear was found to increase with increase in moisture content for sand and decrease with increase in moisture content for silt clay loam. Along the radius, the maximum decrease in thickness was found at the edge of the discs and minimum at point H which is 12.5 cm away from the edge of the disc. The wear loss was found to increase with increase in speed of operation. The M4 (42.1 HRC) make of disc found better in circular soil bin due to minimum wear. It was observed that in field conditions the cumulative wear (in terms of weight loss) was 1.79, 1.75, 1.85 and 3.49 times more than the laboratory conditions for discs M1, M2, M3 and M4, respectively. In terms of radius reduction, the wear was 1.89, 1.72, 1.61 and 1.79 times more whereas in terms of thickness reduction, the wear was 2.26, 2.19, 2.24 and 2.27 times more at grid point A to 0.585, 0.535, 0.488 and 0.429 times more at grid point H in the field test than the laboratory test for discs M1, M2, M3 and M4, respectively. This increase in wear may be due to the wide range of abrasives available in the actual field condition and more compactness. The disk of make (42.1 HRC), speed 2.5 km/h and moisture content 0-2 percent were selected as optimum for sand with desirability of 0.99. The disk of make (42.1 HRC), speed 2.5 km/h and moisture content 12-14 percentwere selected as optimum for silty-clay-loam with desirability of 0.998. The make of disc M4 (42.1 HRC) was selected as optimum for field soil. The weight loss, radius reduction and thickness reduction obtained at optimal condition were in good agreement with the predicted value obtained the optimization model. The life of the discs in number of working hourswas calculated by the developed modelkeepingminimum allowable radius up to 228.6 mm and the working life of discs M1 (36.3 HRC), M2 (38.1 HRC), M3 (41.5 HRC) and M4 (42.1 HRC) were calculated as 423.86, 585.51, 950.64 and 1329.4 hours respectively. Based on the study, the make M4 showing minimum wear and maximum working life was selected as the best suitable for farmers followed by M3, M2 and M1.