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Acharya N. G. Ranga Agricultural University, Guntur (AP)

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: NAGARAJ, Er. BASANI × End date: 2022 × Start date: 2020 × Thesis Type: M.Tech. ×
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    ThesisItemOpen Access
    DEVELOPMENT OF REMOTE CONTROL OPERATED SENSOR BASED SITE SPECIFIC CHEMICAL APPLICATOR
    (guntur, 2022-08-18) NAGARAJ, Er. BASANI; ASHOK KUMAR, A.
    Plant protection is one of the important aspects of agriculture which helps to increase farm productivity as well as profit generated per hectare. Crop protection chemicals play a vital role in protecting the crop from insects, fungus, viruses, and weeds. In the conventional spraying system, there is no cut-off mechanism to avoid spraying between plants due to which liquid chemical flows continuously from the nozzles on the plant canopy and in void space which results in 50 - 60 % of wastage in applied chemicals and increases disease control costs. The operator being exposed to hazardous chemicals, wastage of chemical inputs, and degradation of the environment were serious issues with the conventional methods of chemical application. The present study was conducted on the development and performance evaluation of self-propelled remote control operated sensor-based site-specific chemical applicator. The remote-control unit helps to operate the developed chemical applicator from without entering in to the field and the sensors help to spray exactly on the target (plant canopy) and avoid in the void space between the plants. Before developing the chemical applicator, all the required components were drawn and assembled in Solidworks software for fabrication accuracy. The developed chemical applicator was evaluated under laboratory and field conditions. During field evaluation, Chilli crop was chosen to test the developed chemical applicator. Before chemical application Water sensitive papers (WSP) named L1(top), L2(middle) and L3(bottom) were placed vertically on the canopy and WSP named L4 and L5 were placed horizontally on the soil surface at inter canopy region. Results obtained for developed chemical applicator were compared using with activation and without activation of sensors. ImageJ software was used for image analysis to find droplet size, density and percentage of area covered on crop. Cost economics of developed chemical applicator were also determined. xiv During evaluation, it was observed that the maximum detection range of three ultrasonic sensors was not uniform due to variation in frequency. So, to have a uniform detection range was adjusted to 65 cm. The average forward speed of the chemical applicator was 2.19 km h-1. The average discharge of the boom was 0.653 l min-1. It was observed that after 105 minutes of operation the voltage was dropped to 16.7 and further drop in voltage was not sufficient to propel the developed and took nearly 360 minutes to charge the discharged batteries. The droplet size, density and spray coverage were similar at L1, L2 and L3 locations of WSP during application of chemical with and without activation of sensors. The droplet size, density and spray coverage at L4 and L5 varied from 197.69 to 207.01 μm, 150.67 to 18.33 droplets per cm2 and 11.41 to 3.37 % during application of chemical with and without activation of sensors. The application rate of chemicals reduced from 151.22 l ha-1 to 73.32 l ha-1 when operated with activation of sensors. The actual field capacity and field efficiency of the developed chemical applicator was 0.263 ha h-1 and 61.73 %. The cost of operation of the developed chemical applicator for Chilli crop was 125 Rs h-1. The developed remote-control unit works satisfactorily in reducing the risk of exposure to harmful chemicals during spraying by the operator. The sensor based chemical applicator unit also worked satisfactorily for real time site specific chemical application and prevented excess use of chemicals and contamination of environment. Keywords: Ultrasonic sensors; site specific applicator; Image analysis; Object sensing; cost economics.
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