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Acharya N G Ranga Agricultural University, Guntur

The Andhra Pradesh Agricultural University (APAU) was established on 12th June 1964 at Hyderabad. The University was formally inaugurated on 20th March 1965 by Late Shri. Lal Bahadur Shastri, the then Hon`ble Prime Minister of India. Another significant milestone was the inauguration of the building programme of the university by Late Smt. Indira Gandhi,the then Hon`ble Prime Minister of India on 23rd June 1966. The University was renamed as Acharya N. G. Ranga Agricultural University on 7th November 1996 in honour and memory of an outstanding parliamentarian Acharya Nayukulu Gogineni Ranga, who rendered remarkable selfless service for the cause of farmers and is regarded as an outstanding educationist, kisan leader and freedom fighter. HISTORICAL MILESTONE Acharya N. G. Ranga Agricultural University (ANGRAU) was established under the name of Andhra Pradesh Agricultural University (APAU) on the 12th of June 1964 through the APAU Act 1963. Later, it was renamed as Acharya N. G. Ranga Agricultural University on the 7th of November, 1996 in honour and memory of the noted Parliamentarian and Kisan Leader, Acharya N. G. Ranga. At the verge of completion of Golden Jubilee Year of the ANGRAU, it has given birth to a new State Agricultural University namely Prof. Jayashankar Telangana State Agricultural University with the bifurcation of the state of Andhra Pradesh as per the Andhra Pradesh Reorganization Act 2014. The ANGRAU at LAM, Guntur is serving the students and the farmers of 13 districts of new State of Andhra Pradesh with renewed interest and dedication. Genesis of ANGRAU in service of the farmers 1926: The Royal Commission emphasized the need for a strong research base for agricultural development in the country... 1949: The Radhakrishnan Commission (1949) on University Education led to the establishment of Rural Universities for the overall development of agriculture and rural life in the country... 1955: First Joint Indo-American Team studied the status and future needs of agricultural education in the country... 1960: Second Joint Indo-American Team (1960) headed by Dr. M. S. Randhawa, the then Vice-President of Indian Council of Agricultural Research recommended specifically the establishment of Farm Universities and spelt out the basic objectives of these Universities as Institutional Autonomy, inclusion of Agriculture, Veterinary / Animal Husbandry and Home Science, Integration of Teaching, Research and Extension... 1963: The Andhra Pradesh Agricultural University (APAU) Act enacted... June 12th 1964: Andhra Pradesh Agricultural University (APAU) was established at Hyderabad with Shri. O. Pulla Reddi, I.C.S. (Retired) was the first founder Vice-Chancellor of the University... June 1964: Re-affilitation of Colleges of Agriculture and Veterinary Science, Hyderabad (estt. in 1961, affiliated to Osmania University), Agricultural College, Bapatla (estt. in 1945, affiliated to Andhra University), Sri Venkateswara Agricultural College, Tirupati and Andhra Veterinary College, Tirupati (estt. in 1961, affiliated to Sri Venkateswara University)... 20th March 1965: Formal inauguration of APAU by Late Shri. Lal Bahadur Shastri, the then Hon`ble Prime Minister of India... 1964-66: The report of the Second National Education Commission headed by Dr. D.S. Kothari, Chairman of the University Grants Commission stressed the need for establishing at least one Agricultural University in each Indian State... 23, June 1966: Inauguration of the Administrative building of the university by Late Smt. Indira Gandhi, the then Hon`ble Prime Minister of India... July, 1966: Transfer of 41 Agricultural Research Stations, functioning under the Department of Agriculture... May, 1967: Transfer of Four Research Stations of the Animal Husbandry Department... 7th November 1996: Renaming of University as Acharya N. G. Ranga Agricultural University in honour and memory of an outstanding parliamentarian Acharya Nayukulu Gogineni Ranga... 15th July 2005: Establishment of Sri Venkateswara Veterinary University (SVVU) bifurcating ANGRAU by Act 18 of 2005... 26th June 2007: Establishment of Andhra Pradesh Horticultural University (APHU) bifurcating ANGRAU by the Act 30 of 2007... 2nd June 2014 As per the Andhra Pradesh Reorganization Act 2014, ANGRAU is now... serving the students and the farmers of 13 districts of new State of Andhra Pradesh with renewed interest and dedication...

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Subject: Agricultural Engineering × Author: ANANDA BABU, V × End date: 2018 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    DESIGN AND DEVELOPMENT OF HIGH CLEARANCE UNIT IN SMALL TRACTOR FOR COTTON CROP
    (Acharya N.G. Ranga Agricultural University, 2018) ANANDA BABU, V; RAMANA, C
    Agriculture is one of the major sectors in Indian economy. Nearly 60 per cent of the population depends on agriculture and it is considered as backbone of the country. Cotton ‘the white gold’ is one of the most important commercial crops playing a key role in the economical, political and social affairs of the country. It sustains the country’s cotton textile industry, which is perhaps the largest segment of organized industries in the country. India ranks third in the world in production of cotton crop. The existing clearance of the small tractor was increased with developed high clearance unit using mild steel as a structure. The tractor was lifted up to height of 1.4 m using front and rear legs of front axle and rear axle. A frame was developed to support the tractor weight and dynamic loads of the legs were provided for all the wheels during motion. The drive from the tractor rear axle was transferred to the rear wheels using chain and sprocket arrangement for both the rear wheels. The front legs of front wheels and rear legs of rear wheels were connected using horizontal bar for proper supporting and load distribution. The dynamic analysis of the tractor with weeding and spraying unit was studied and found that, the tractor is in stable condition during operation up to a depth of 10 cm. It was found that the location of centre of gravity of tractor is 1.9 m from the ground surface. The critical speed of tractor is 2.55 ms-1 and the front and rear wheel reactions are about 208.5 kg and 796.5 kg respectively at maximum depth of operation. The spraying and weeding units were constructed on the developed high clearance unit spraying of the chemical was made possible at various stages of the crop, a spraying unit with capacity of 300 liters’ was developed and attached to the high clearance tractor. Three nozzles were used and mounted on the boom to cover three rows of the crop. The height of nozzles from the ground can be adjusted based on the crop requirement. A weeding unit was also developed and attached to the tractor to remove the weeds in-between the rows of cotton crop. A horizontal blade was used to scrape and remove the weeds from the soil. The blade used for weeding was made from cast iron and connected to the tractor rear wheels for proper supporting. Both the spraying and weeding operations can be simultaneously done in single operation which lead to reduction in cultivation cost of the crop as well as fuel consumption for single run when compared to two times operation of the tractor. The performance of the developed high clearance sprayer was evaluated in the field during the period of rabi season in 2015-16. The height of the boom and position of the nozzles were adjusted with cotton crop so that the crop was not damaged by the boom and also without interfering with spray swath and characteristics of droplets intact over plants. The constant pressure was maintained by boom sprayer for entire operation of the crop. The field performance of developed high clearance sprayer indicated that the machine can cover an area of 1200 m2 with 150 litres, the tank is refilled after spraying 0.24 ha area, the tank refilling time was 15 minutes and the was varied from 1.8 km/h to 3.2 km/h depending upon the field condition. Three types of blades developed for weeding were tested at different inclinations i.e 50, 150 and 300 and at various operating depths. It was observed maximum weeding efficiency 93 % and lower draft force 76 kg for blade 1 (plain blade with one side sharpened) at an angle of 150. Four nozzles were selected and studied the performance on farm use. It was found that solid cone nozzle is suitable for better spraying operation. Developed high clearance tractor with spraying and weeding attachment can be used simultaneously on single run so that, the time and labour can be saved and it can be used for any tall crops for intercultural operations. The cost economics analysis of developed high clearance tractor showed that 12 percent saving in cost compared with farmers traditional method. Similarly for entire crop period 199.64 man-hours were also saved with high clearance tractor compared to the manual method.