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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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Subject: Farm, Machinery and Power × Author: Kamat, Vivek R. × End date: 2019 × Start date: 2019 × Type: Thesis ×
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    ThesisItemOpen Access
    Mathematical modelling of power requirement for P.T.O driven agricultural machinery
    (CCSHAU, 2019) Kamat, Vivek R.; Jain, Mukesh
    A 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.