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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: Environmental Science × Author: SRIKANTH, MANGALAPURI × End date: 2018 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    STUDIES ON COMPOSTING AQUASLUDGE AND ITS SUITABILITY TO DIFFERENT CROPS
    (Acharya N.G. Ranga Agricultural University, 2018) SRIKANTH, MANGALAPURI; RAMACHANDRA RAO, G
    “Studies on composting aquasludge and its suitability to different crops” was undertaken at the Department of Environmental Sciences, Advanced Post Graduate Centre, Lam, Guntur during 2017-18. The physico-chemical characteristics of aqua sludge, paddy straw and water hyacinth and also the best bulking material between paddy straw and water hyacinth was determined to make compost for use as organic fertilizer for its suitability to different crops. The aquasludge obtained from the three districts namely Nellore, Parkasam and Guntur in Andhra Pradesh was analyzed separately with standard procedures for pH, EC, organic carbon, total nitrogen, available nitrogen, available phosphorous, total potassium, Ca, Mg, S and micronutrients (Fe, Mn, Zn and Cu).The aquasludges collected from these three districts were found to be neutral in reaction (6.8, 6.5 and 6.7), with EC of (1.81, 2.05 and 1.59 dS m-1) and organic carbon (6.06, 6.71 and 6.24 %). Primary nutrients like total nitrogen, available nitrogen, available phosphorous and total potassium contents of aquasludges were (1.06, 1.97 and 0.77 per cent), (0.0368, 0.0573 and 0.0452 per cent), (0.0479, 0.0570 and 0.0520 per cent g Kg-1) and (0.176, 0.221 and 0.193 g Kg-1) respectively. Secondary nutrients like calcium, magnesium and sulphur contents of aqua sludge were 3.60, 4.18 and 3.08 g Kg-1, 2.73, 3.00 and 2.13 g Kg-1 and0.442, 0.5206 and 0.4 % respectively and micronutrients like Fe, Cu, Mn and Zn in aqua sludge were 36.16, 39.95 and 35.25 g Kg-1, 0.179, 0.191 and 0.173 g Kg-1 0.70, 0.79 and 0.59 g Kg-1 and 0.271, 0.364 and 0.338 g/Kg respectively. Currently, there are only few treatment options available for aqua sludge. Among them composting can provide a simple and cost effective method to treat the sludge and at the same time reuse excessive organic matter and nutrients for enhanced production of different crops. Composting study was conducted by mixing different proportions of aqua sludge with bulking materials like paddy straw and water hyacinth collected from Live Stock Research Station, Lam, Guntur and Agricultural College Farm, Bapatla respectively. Three sets of experiments were conducted using three different aqua sludge samples collected from Pantapalem (Nellore), Vetapalem (Praasam) and Karlapalem (Guntur) locations of Andhra Pradesh. Experiment was laid out in Completely Randomized Design with three replications and nine treatments comprising of T1-Aqua sludge alone 100% (control) ,T2-Aqua sludge 80% +paddy straw 20%, T3-Aqua sludge 70% + paddy straw 30%, T4-Aqua sludge 60% + paddy straw 40% , T5-Aqua sludge 80% + water hyacinth 20%, T6-Aqua sludge 70% + water hyacinth 30% , T7-Aqua sludge 60% + water hyacinth 40% , T8-Aqua sludge 70% + paddy straw10%+water hyacinth20% and T9-Aqua sludge 60% + paddy straw20%+water hyacinth20%. Three such sets were maintained to facilitate destructive sampling at 30 days of incubation and at 60 days after composting. Aqua sludge compost samples were analyzed for physico-chemical properties employing standard procedures. The results revealed that the aqua sludge compost pH became neutral with the end of composting process; while organic carbon of compost increased with increasing percentage of bulking materials. The pH and EC of treatments containing water hyacinth was significantly higher than those without water hyacinth in all the three sets of experiments. 30 days after incubation, the pH and EC increased gradually, later decreased but organic carbon gradually increased up to 60 days of composting. Total nitrogen and available nitrogen increased significantly with increasing percentage of bulking material in the three sets of experiments. Final values of total nitrogen at 60 days ranged from 1.02 to 1.79%, 1.47 to 2.68 and 0.61 to 1.38 % respectively. Available nitrogen also followed the same pattern as that of total nitrogen and the same trend was apparent. Total potassium (K), available- P, calcium (Ca), magnesium (Mg), sulphur (S) and manganese (Mn) were significantly higher in treatments with Water hyacinth than treatments with Rice Straw used as bulking materials due to the initial composition of this material. Treatments with higher aqua sludge tended to have higher Zn, Cu and Fe. The same trend was apparent in all the three sets of experiments. A desirable organic fertilizer is rich in N, P and K, which is released into the soil over time. The results of the present study indicated that the final quality of aqua sludge compost in terms of nutrient content varied depending on the initial materials. Total nitrogen of final compost increased with increasing percentage of aqua sludge. Available P and total K of the final compost increased with increasing percentage of water hyacinth, which was expected because water hyacinth had higher available P and total K than aqua sludge and rice straw. The final micronutrients, pH and EC of the composts could also be explained by the initial aqua sludge, rice straw and water hyacinth. Thus the characteristics of initial materials seems to be a good indication of the quality of the compost produced. It was concluded that polluted aqua sludge from aqua ponds in these three districts could be effectively treated by composting and have potential for subsequent use as an agricultural fertilizers. Finally, compost made with aqua sludge was used to test the germination per cent, height and fresh weight of the three crops viz., bengal gram, cotton and black gram. In terms of germination %, height and fresh weight in sludge + paddy straw combinations T4 recorded the highest values. In sludge + water hyacinth combinations T7 recorded the highest values and sludge + paddy straw + water hyacinth combinations T8 recorded the highest values. T1 maintained as control containing 100 % aqua sludge showed lowest values of germination %, height and fresh weight of the three crops. A similar trend was followed in the three sets of experiments. Among nine aqua sludge composts T4 showed the best germination percentage, tallest in height and high in fresh weight of the three crops. Overall the results showed that paddy straw was the best bulking material when combined with 60:40 ratio of aqua sludge and paddy straw. Based on the results, it could be concluded that aqua sludge has a potential to be used as compost material when mixed with either rice straw or water hyacinth.