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Chaudhary Charan Singh Haryana Agricultural University, Hisar
Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.
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ThesisItem Open Access Performance evaluation of tractor drawn straw reaper for paddy straw(CCSHAU, Hisar, 2019-08) Ujala; Saroha, AnilRice (Oryza sativa) is one of the leading and widely cultivated cereal crops in the world. India has the world‟s largest area under rice with 43 million ha and is the second largest producer next only to China with production of 104 million tonnes during 2015-16. The productivity of rice was around 24q ha-1 during the agricultural year 2015-16 (Anonymous, 2017). The tractor drawn paddy straw reaper was evaluated at farmers field in Ludas village of Hisar district for optimization of machine parameters viz., cylinder speed (550, 750 and 950 rpm), forward speed (1.0, 1.5 and 2.0 km h-1) and crop parameter viz., straw moisture content (20.4 to 49.5 %) in relation to field capacity, field efficiency, fuel consumption, straw size, straw recovery and straw split percentage for paddy varieties Pusa-1121 and Pusa-44. For the paddy variety Pusa-1121 the field capacity, field efficiency, fuel consumption and power consumption at optimum conditions were 0.23 ha h-1, 66.37%, 5.33 l ha-1 and 21.82 kW, respectively. The straw size, straw recovery and straw split at optimum condition were 3.30 cm, 65.11 % and 89.11 %, respectively. Similarly for paddy variety Pusa-44, the field capacity, field efficiency, fuel consumption and power consumption at optimum conditions were 0.20 ha h-1, 59.45%, 5.67 l ha-1 and 23.70 kW, respectively. The straw size, straw recovery and straw split at optimum condition were 3.46 cm, 62.89 % and 86.23 %, respectively. Moisture content of 20.4-20.8 per cent, forward speed of 1.5 km h-1 and cylinder speed of 950 rpm was found optimum for paddy varieties Pusa-1121 and Pusa-44. The cost of operation was Rs 5190 ha-1and Rs 6112 ha-1 in Pusa-1121 and Pusa-44 variety, respectively. The machine was found economically feasible for the farmer‟s.ThesisItem Open Access Ergonomic assessment and physiological cost analysis of power weeder(CCSHAU, Hisar, 2019-08) Sonam; Jain, MukeshThe experimental study on “Ergonomic assessment and physiological cost analysis of power weeder” was conducted in two crops i.e. cotton and sugarcane. The soil and environmental parameters were recorded at two different weeding intervals in cotton (40 days after sowing and 60 days after sowing) and sugarcane (30 days after sowing and 60 days after sowing) crop. The weeding efficiency and physiological parameters like heart rate, blood pressure, body temperature etc. was measured during the experiment. The machine parameters like actual field capacity and field efficiency were recorded. Physiological cost was estimated on the basis of Oxygen Consumption Rate (OCR) and Energy Expenditure Rate (EER). The maximum values of oxygen consumption rate (OCR) were recorded to be 1.05 l/min and 1.09 l/min at forward speed of 2.09 km/h in cotton and sugarcane crop, respectively. The maximum energy expenditure rate (EER) was recorded at highest speed of operation i.e. 2.09 km/h and it was 22.8 kJ/min in cotton field and 21.9 kJ/min in sugarcane field. Vibration was highest at x-axis of left handle i.e. 13.3 m/s2 in cotton and 13.7 m/s2 in sugarcane at highest speed of operation i.e. 2.09 km/h. The highest weeding efficiency recorded was 82% (second weeding) in cotton and 87% (second weeding) in sugarcane. Total dust particle concentration was highest at maximum speed of operation. Particles ranging between 10 μm and 32 μm had highest concentration in the environment which was 14527.1 μg/m3 during weeding operation in cotton crop and 14894.7 μg/m3 in sugarcane crop which was more than the prescribed limit of 100 μg/m3 according to the standards given by National Ambient Air Quality Standards (NAAQS) of India. Noise level ranged between 62 dB to 74 dB and it was highest at highest speed i.e. 2.09 km/h. The maximum heart rate recorded during weeding operation was 156 beats per min in cotton field whereas in sugarcane field it was found 151 beats per min after 30 minutes of operation. The cost of operation was calculated to be Rs. 287 per hour and Rs. 2662 per hectare. The maximum body temperature attained during the experiment was found to be approx. 98.8 ºF in both the crop i.e. cotton and sugarcane. The maximum systolic blood pressure recorded was 134 mm/Hg in cotton and 135 mm/Hg in sugarcane crop at a forward speed of 2.09 km/h after 30 minutes of operation.ThesisItem Open Access Mathematical modelling of power requirement for P.T.O driven agricultural machinery(CCSHAU, 2019) Kamat, Vivek R.; Jain, MukeshA mathematical model was developed to predict P.T.O power requirement of the tractor for operating rotavator, tractor operated gun sprayer, tractor operated VCR and paddy thresher. Mathematical models were developed by using 80 % of the secondary data collected from the test reports released by different authorized testing centres. Three different regression analyses such as multiple linear regressions, weighted least square and stepwise regression models were used to predict the P.T.O power requirement. Multicollinearity among the variables in relation to P.T.O power requirement was analysed using VIF. Effect of parameters affecting the P.T.O power requirement was analysed using correlation. During analysis of rotavator, soil moisture content, speed of operation, depth of cut, width of cut, peripheral velocity of blade, no of blades, weight of the implement, type of blade and type of soil have a significant effect. For tractor operated sprayer, working pressure and discharge rate of pump expressed significant effect. Speed of operation in tractor operated VCR was detected a significant effect in wheat crop. For paddy thresher, moisture content of grain and straw, concave clearance and drum length exhibited a significant effect on the P.T.O power requirement. Weighted least square model was used to predict P.T.O power requirement in rotavator and paddy thresher. However, multiple linear regression model of tractor operated sprayer and stepwise regression model of tractor operated VCR for wheat crop were selected based on the highest R2 values. The R2 values obtained of rotavator, tractor operated sprayer, tractor operated VCR and paddy thresher were 0.984, 0.965, 0.411 and 0.92 respectively. Validation of the developed model was performed on 20 % of secondary data and the MAPE obtained during validation was in the reasonable limit.ThesisItem Open Access Comparative performance evaluation of different types of sprayer in cotton crop(CCSHAU, 2019) Aman; Anil KumarSelf-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) were evaluated for its performance under local agro-climatic conditions. To select suitable operational parameters the sprayers were initially evaluated at three pressure levels and three heights and corresponding discharge, spray angle, swath width and spray distribution pattern were observed under laboratory conditions and the optimized value of pressure and target height were selected for the evaluation of the sprayers in field conditions. Self-propelled high clearance sprayer, tractor operated gun sprayer and lever operated knapsack sprayer provided best results at a pressure of 3 kg cm-2 and a height of 54.5 cm, 15 kg cm-2 and 54.5 cm and 3 kg cm-2 and 53 cm, respectively. Under field conditions, the NMD, VMD and UC of Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) were found to be 55.57 μm, 198.34 μm, 3.58 and 60.73 μm, 213.18 μm, 3.60 and 52.98 μm, 217.72 μm, 4.35, respectively. The area covered by droplets by self-propelled high clearance sprayer was 11.75 and 43.17 % higher than tractor operated gun sprayer (GS) and lever operated knapsack sprayer (KS), respectively. The results were found significant (p= 0.0007). The volume of spray deposition by Selfpropelled high clearance sprayer (HS) was significantly (p= 0.0026) 6.58 and 19.51 % higher than that of GS and KS, respectively. The volume of spray deposition on top side of leaves was significantly higher than bottom side of leaves in all cases irrespective of types of sprayer. The bio-efficacy of selfpropelled high clearance sprayer (50.63 %) was higher than tractor operated gun sprayer (49.11 %) and lever operated knapsack sprayer (47.57 %). The field capacity of Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) was found to be 1.44, 0.82 and 0.078 ha h-1 with efficiency of 67.74, 78.63 and 82.12 %, respectively. The cost of operation for HS, GS and KS was found to be 632.76 Rs. ha-1, 504.78 Rs. ha-1 and 656.73 Rs. ha-1, respectively. The B:C ratio was found to be 1.11, 1.98 and 1.83 for Self-propelled high clearance sprayer, tractor operated gun sprayer, and lever operated knapsack sprayer. Self-propelled high clearance sprayer is a recommended technology and showed best results in terms of uniformity, droplets size, area covered by droplets, volume of spray deposition, bio-efficacy and highest field capacity.
