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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: ANUSHA, NAGAVARAPU × Start date: 2022 × Type: Thesis × Thesis Type: M.Tech. ×
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    ThesisItemOpen Access
    DEVELOPMENT OF SENSOR BASED PADDY PLANTER FOR AUTOMATIC SEEDING
    (ACHARYA NG RANGA AGRICULTURAL UNIVERSITY, 2023-04-26) ANUSHA, NAGAVARAPU; RAMI REDDY, K. V. S.
    In India, Paddy (Oryza Sativa L.) is cultivated over an area of 43.79 million hectares with a total production of 121.1 million tons and a yield of 2,578 kg per ha. Sowing is the most important agricultural operation and seed planter must hold the seed and transport it into the field. The seed planter mechanism should have the proper transmission of seed in the required spacing, and cover the furrow after the seed is laid. Seed drills and planters are mainly driven mechanically by a ground wheel with chain drive and gear. Due to mechanical driven seed metering mechanism, the required spacing was not achieved in case of paddy seeds. A mechatronic based seed metering mechanism operated with sensors eliminates the problem of continuous drilling of paddy seeds and can significantly increase the performance of planting also the accuracy of the work. In view of this, the present study was conducted on the "Development of sensor based paddy planter for automatic seeding”. Considering the role of physical properties in developing different parts of seed metering mechanism, properties for a variety of paddy BPT 5204 was measured. The average values of length, width, and thickness of BPT-5204 were found with the range of 6.77 to 8.17; 1.92 to 2.40 and 1.50 to 1.84 mm respectively. The equivalent diameter varied from 2.79 to 3.23 mm and sphericity varied from 0.37 to 0.42. The coefficient of friction of seeds of BPT 5204 for different materials such as mild steel sheet, plywood, and fiber ranges from 0.404 - 0.424, 0445-0.509, and 0.424- 0.445 respectively. xx An attempt was made to develop a mechatronic based seed metering mechanism to control the seed to seed spacing using pulse width modulation i.e, timer delay in the microcontroller and evaluated its performance both in laboratory and field conditions through studying the effect of different forward speed (1.0, 1.5, 2, 2.5 km h-1),stoppage time (0-0.5, 0.5-1, 1.0-1.5, 1.5-2.0 s), inclination angles (45˚,50˚and 60˚) and groove openings (all, four and three groove openings). In the effect of different forward speeds with seed metering plate speeds under 45˚,50˚and 60˚ with above conditions of seed metering plate, it was noticed that the achieved spacing was 26.10 cm under 60˚ at a forward speed of 1.0kmph under three grooves. At a forward speed of 1.5 and 2.0 km h-1 under four grooves opening condition, the achieved spacing was 23.83 cm and 25.58 cm. So, the inclination angle of 60˚ was suitable for paddy. In studying the effect of timer delay under different forward speeds at 60˚, it was observed that with three grooves opening condition, at a forward speed of 1.5, 2.0 and 2.5 km h-1 with a delay time of 2.0 s, 1.5 s and 2.0 s the achieved spacing was 25.33 cm, 25.00 cm and 25.60 cm respectively. Similar desired spacing of 24.50 cm, 25.40 cm and 25.40 cm were achieved at forward speeds of 1.5, 2.0 and 2.5 km h-1 with a delay time of 2.0 s, 1.5 s and 2.0 s under four groove opening condition of seed metering plate. The developed mechatronic based seed metering system performance was excellent in field as well as in laboratory on the basis of desired seed spacing, negligible missing and multiple index and highest quality feed index during forward speed of 2 to 2.5 km h-1 under 60˚ inclination angle. The cost of operation of the unit was estimated as Rs. 761.57 per hour. Keywords: Paddy; Mechatronic metering mechanism; Pulse width modulation; Timer delay; Seed to seed spacing and Cost economics