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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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2015 - 20162
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Subject: Agronomy × Author: SATHISH BABU, K × End date: 2016 × Start date: 2015 × Type: Thesis ×
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    ThesisItemOpen Access
    RESPONSE OF MAIZE (Zea mays L.) TO HIGHER LEVELS OF NUTRITION (N, P, K AND Zn)
    (Acharya N.G. Ranga Agricultural University, 2016) SATHISH BABU, K; Dr. P. V. RAMESH BABU
    A field experiment was conducted on sandy loam soils at Agricultural College Farm, Mahanandi to study the “Response of maize to higher levels of nutrition (N, P, K and Zn)” during rabi 2015-16 under irrigated condition. The treatments consisted of three higher levels of nutrients and six treatments of higher levels of nutrients in combination of Zinc viz., T1: Control, T2: 250-60-60 kg N-P2O5-K2O ha-1 T3: 300-80-80 kg N-P2O5-K2O ha-1, T4: 350-100-100 kg N-P2O5- K2O ha-1, T5: T2 + Foliar application of 0.2% ZnSO4 at 15 DAS, T6: T3 + Foliar application of 0.2% ZnSO4 at 15 DAS, T7: T4 + Foliar application of 0.2% ZnSO4 at 15 DAS, T8: T2 + Foliar application of 0.2% ZnSO4 at 15 DAS and 25 DAS, T9: T3 + Foliar application of 0.2% ZnSO4 at 15 DAS and 25 DAS, T10:T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS arranged in a randomized block design and were replicated thrice. The soil of the experimental site was sandy loam in texture, slightly alkaline in pH, low in organic carbon (0.46), medium in available nitrogen (298 kg ha-1) high in available phosphorus (48.12 kg ha-1), available potassium (687.6 kg ha-1) and sufficient in zinc (1.32 ppm). Data collected on growth parameters viz., plant height, drymatter accumulation, day to 50 per cent tasseling and silking, yield attributes, grain xiii yield, stover yield, harvest index and nutrient uptake of maize were subjected to statistical analysis. The taller plants, higher dry matter accumulation at different growth stages viz., 30 ,60, 90 DAS and at harvest of the crop were produced with treatment T10 (T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS) which in turn was at par with T9 (T3 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS), T8 (T2 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS), T7 (T4 + Foliar application of 0.2% ZnSO4 at 15 DAS), T6 (T3 + Foliar application of 0.2% ZnSO4 at 15 DAS), T4 (350-100-100 kg N-P2O5-K2O ha-1) and significantly lowest plant height and drymatter accumulation was associated with the T1 (Control). Number of days taken to 50 per cent tasseling and silking was affected significantly by different higher levels of nitrogen, phosphorus, potassium and foliar application of Zn. However the crop which applied with the treatment T10 (T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS) took less number of days to reach 50 per cent tasseling (50.00 days) and 50 per cent silking (53.00 days) where as delayed tasseling (60.00 days) and silking (63.00 days) noticed with T1 (Control). The rest of treatments tried in experimentation were comparable with each other. Yield attributes like number of cobs per plant and number of grain rows per cob were not significantly influenced by different higher levels of nitrogen, phosphorus, potassium and foliar application of Zn. However, yield attributes like cob length, number of grains per row, grain weight per cob and test weight significantly influenced by higher levels of nutrition and higher yield attributes obtained with the application of T10 (T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS) and lowest with control (T1). Where as in case of test weight lowest values were recorded with T1 (Control) and T2 (250-60- 60 kg N-P2O5-K2O ha-1). The remaining treatments were at par with each other. Grain yield, stover yield and maximum harvest index of maize were increased significantly due to increased levels of nitrogen, phosphorus, potassium and foliar application of Zn. Maximum grain yield (8734 kg ha-1) and stover yield (11275 kg ha-1) were recorded with T10 (T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS) and it was at par with the all the remaining treatments except with T1 (Control), how ever the maximum harvest index (43.85) was recorded with the application of T7 (T4 + Foliar application of 0.2% ZnSO4 at 15 DAS) .whereas the crop supplied with T2 (250-60-60 kg NP2O5- K2O ha-1) resulted in lower harvest index. The nutrient uptake of maize at various stages viz,. 30, 60 90 DAS and at harvest was significantly and progressively influenced by higher levels of nitrogen, phosphorus, potassium and foliar application of Zn. The highest N, P, K and Zn uptake was obtained with T10 (T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS) at all growth stages of crop. However, the phosphorus uptake at 60 and 90 DAS was higher with the T9 (T3 + Foliar xiv application of 0.2% ZnSO4 at 15 and 25 DAS and T8 (T2 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS), respectively. The lowest nutrient uptake recorded with T1 (Control) and remaining treatments were at par with each other. Higher levels of nitrogen, phosphorus, potassium and foliar application of Zn have exerted significant influence on the post harvest soil nutrient status of available nitrogen, phosphorus and potassium. Maximum available nitrogen, phosphorus and potassium (349.33, 89.91 and 823.95 kg ha-1, respectively) in soil was observed with T10 (T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS) and significantly lowest nutrient uptake was with the T1 (Control) and remaining treatments were comparable with each other. Gross returns, net returns and B: C ratio was significantly affected by higher levels of nitrogen, phosphorus, potassium and foliar application of Zn. However, the higher gross returns and net returns (` 113537.67 ha-1 and ` 74114.67 ha-1, respectively) was recorded with the treatment T10 (T4 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS), where as higher B: C ratio (1.99) recorded with T8 (T2 + Foliar application of 0.2% ZnSO4 at 15 and 25 DAS). From, the above investigation, it is clearly indicated that the higher level of nitrogen, phosphorus, potassium and foliar application of Zn had a significant influence in increasing productivity and profitability of maize. The higher yield of maize was with application of 350:100:100 kg NPK ha-1 alongwith foliar application of 0.2% ZnSO4 at 15 and 25 DAS (T10). However, the economic yield was obtained with application of 250:60:60 kg NPK ha-1 alongwith foliar application of 0.2% ZnSO4 at 15 and 25 DAS (T8). It is therefore concluded that the better yields can be acheieved in maize with application of 250:60:60 kg NPK ha-1 alongwith foliar application of 0.2% ZnSO4 at 15 and 25 DAS (T8).
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    ThesisItemOpen Access
    WEED MANAGEMENT IN SESAME (Sesamum indicum L.)
    (Acharya N.G.Ranga Agricultural University, Guntur, 2015) SATHISH BABU, K; SUBRAMANYAM, D
    A field experiment was conducted at S.V. Agricultural College Farm, Tirupati, campus of Acharya N.G. Ranga Agricultural University of Andhra Pradesh, during summer, 2015, to identify the suitable pre-and post-emergence herbicides for effective control of weeds in sesame. The present investigation was laid out in a randomized block design with three replications. There were eleven weed management practices viz., preemergence application of pendimethalin 750 g ha-1 (W1), pre-emergence application of oxyfluorfen 75 g ha-1 (W2), pre-emergence application of oxadiargyl 75 g ha-1 (W3), pre-emergence application of pendimethalin 750 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS (W4), pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS (W5), pre-emergence application of oxadiargyl 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS (W6), pre-emergence application of pendimethalin 750 g ha-1 + propaquizafop 60 g ha-1 applied at 20 DAS (W7), preemergence application of oxyfluorfen 75 g ha-1 + propaquizafop 60 g ha-1 applied at 20 DAS (W8), pre-emergence application of oxadiargyl 75 g ha-1 + propaquizafop 60 g ha-1 applied at 20 DAS (W9), two hand weedings at 20 and 40 DAS (W10) and unweeded check (W11) The weed flora identified in the experimental field belongs to eight taxonomic families, of which three species were grasses, two species of sedges and eleven species were broad leaved weeds. The predominant weed species associated in the experimental field were Cyperus rotundus (40.0%), Commelina benghalensis (10.0%), Cleome viscosa (8.0%), Boerhavia diffusa (5.0%), Phyllanthus niruri (5.0%) Dactyloctenium aegyptium (5.0%) and Digitaria sanguinalis (4.0 %). xvi The lowest density and dry weight of weeds with lower nutrient uptake by weeds and the highest weed control efficiency were recorded with hand weeding twice at 20 and 40 DAS. Pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS was the next best weed management practice for the above said weed parameters, which was at par with pre-emergence application of oxyfluorfen 75 g ha-1 + propaquizafop 60 g ha-1 applied at 20 DAS. Among the sequential application of pre- and post-emergence herbicides, pre-emergence application of oxadiargyl alone or in combination with post-emergence application of herbicides recorded significantly higher density and dry weight of weeds. Among the weed management practices studied, two hand weedings at 20 and 40 DAS resulted in the highest stature of growth parameters viz., plant height, leaf area plant-1, number of branches plant-1 and dry matter production and yield promoting characters viz., number of capsules plant-1, number of seeds capsule-1 and test weight. All the above growth and yield parameters were significantly higher with pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS. Pre-emergence application of oxadiargyl 75 g ha-1 showed phytotoxicity rating “4.0” on sesame crop. The highest seed, oil and haulm yield of sesame were recorded with two hand weedings at 20 and 40 DAS followed by pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS. The seed yield of sesame was increased by 71.40 and 61.30 per cent with two hand weedings at 20 and 40 DAS and pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS compared to unweeded check. Pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS resulted in the highest harvest index and the lowest weed index, among the herbicidal treatments. The highest nutrient uptake by crop and the lowest nutrient uptake by weeds were noticed with two hand weedings followed by pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS. The nutrient drain in unweed check due to heavy weed infestation was estimated 44.6, 5.6 and 34.0 kg ha-1 of nitrogen, phosphorus and potassium, respectively. Among the weed management practices, the highest gross returns were realized with two hand weedings followed by pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS, with significant disparity between them. However, the latter weed management practice recorded significantly higher net returns and benefit cost ratio. In conclusion, the present study has revealed that two hand weedings at 20 and 40 DAS resulted in the highest seed yield and gross returns, but the net returns and benefit-cost ratio were at their highest with pre-emergence application of oxyfluorfen 75 g ha-1 + quizalofop 50 g ha-1 applied at 20 DAS. Out of these two weed management practices, wherever, the labour availability for hand weeding is abundant, timely and cheaper, one can go for hand weeding or else, opt for the said herbicide recommendation for the effective control of weeds in sesame crop.