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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: GOWTHAM SINGH, B × End date: 2022 × Thesis Type: M.Tech. ×
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    ThesisItemOpen Access
    PERFORMANCE EVALUATION OF FERTIGATION EQUIPMENT ON CHILLIES AND MAIZE CROPS IN SANDY SOIL
    (Acharya N.G. Ranga Agricultural University, Guntur, 2016) GOWTHAM SINGH, B; RAVI BABU, G
    Soluble chemical fertilizers can be injected into the drip and sprinkler systems which can be easily applied to the crop. This way nutrients are delivered with the irrigation water, directly to the active root zone of the plants. The two operations namely, irrigation and fertilizer applications are done simultaneously which results savings of both in water and fertilizers along with labour requirement. Precise management of irrigation quantity along with the rate and timing of nutrient application are of critical importance to obtain desired results in terms of productivity and Nutrient Use Efficiency. Therefore, for injection of the fertilizer solution into the irrigation system three different fertigation equipments were used namely, venturi injector, fertilizer injection pump and fertilizer tank for the present study. The fertilizer injection pumps needs no external power supply, since the linear hydraulic motor contained within the unit, is powered by the hydraulic pressure of the irrigation system and directly connected to main line. A venturi injector with the size of ¾th inch manufactured by Netafim irrigation systems was used to evaluate the hydraulic performance. The pressure drop through a venturi must be sufficient to create a negative pressure (vacuum) as measured relative to atmospheric pressure. Under these conditions the fluid from the tank will flow into the injector. In fertilizer tank the water will flow because of pressure gradient between the entrance and exit of the fertilizer tank created by a pressure reducing valve (Throttle valve). The experimental field with an area of 453 m2 for chillies crop and 440 m2 for maize crop was selected at field irrigation laboratory, Department of Soil and Water Engineering, College of Agricultural Engineering, Bapatla. The field was divided into 4 main plots with 4.8 m × 20.4 m with plant spacing of 0.6 m x 0.6 m size for chillies and ii 4.6 m × 20.6 m size for maize crop with plant spacing of 0.6 m x 0.2 m to conduct experiments. Different fertigation equipments like venturi injector, fertilizer injection pump and fertilizer tank were tested to study the hydraulic performance of the system. Venturi injector for fertilizer application was found to have high suction rate in comparison with fertilizer injection pump when pressure gradient increased between inlet and outlet. The percentage decrease in motive flow rate for venturi injector was 76 % which was higher than that of fertilizer injection pump 12 % and fertilizer tank 51 % for the pressure difference from 0.1 to 0.5 kg cm-2. Due to the high motive flow rate the venturi injector is suitable for application with large number of drippers where as fertilizer injection pump recorded less motive flow rate when compared to venturi injector at same pressure difference so we can use fertilizer injection pumps for smaller discharge rates also. The results revealed that the yield response was observed to be the best in fertigation with fertilizer injection pump treatment in chillies crop as 10.51 t ha-1 with water use efficiency of 16.26 kg ha-1 mm-1 was observed to be higher than the all other treatments followed by venturi injector, fertilizer tank and flood method as 15.52, 12.66 and 9.18 kg ha-1 mm-1 respectively. In maize crop, also the yield was best in fertigation with fertilizer injection pump treatment as 6.10 t ha-1 with water use efficiency of 10.90 kg ha-1 mm-1 was observed to be higher than the all other treatments followed by venturi injector, fertilizer tank and flood method as 9.97, 8.47 and 5.75 kg ha-1 mm-1 respectively. Increased FUE such as Nitrogen use efficiency (NUE) and Pottasium use efficiency (KUE) were observed in the chilli crop. The highest NUE of 35.53 kg of produce / kg of N was recorded in the treatment drip with fertilizer injection pump (T1) where as in maize crop the highest NUE of 30.96 kg of produce / kg of N was recorded in the treatment drip with fertilizer injection pump (T1). For chillies crop BCR was the highest for the treatment drip with fertilizer injection pump (T1) of 1.49 and the lowest for the control (T4) of 1.08. Venturi injector (T2) occupied the second position for BCR of 1.47 where as fertilizer tank (T3) recorded BCR as 1.20 whereas for maize crop BCR was the highest for the T1 of 1.48 and the lowest for the T4 of 1.15. Venturi injector occupied the second position for BCR of 1.41 whereas T3 recorded BCR as 1.20. It clearly indicates that at different methods of fertilizer application results had significant difference. Key words: fertilizer injection pump, venturi injector, fertilizer tank, suction rate, motive flow rate.