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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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20222
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Subject: Soil Science and Agriculture Chemistry × End date: 2022 × Start date: 2022 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    STUDIES ON SITE SPECIFIC NUTRIENT MANAGEMENT (SSNM) USING GEOSPATIAL TECHNIQUES IN CHINNAPALEM VILLAGE OF GUNTUR DISTRICT
    (guntur, 2022-08-12) RAGHU, R S; PRASAD, P.R.K.
    The texture of the surface soils varied from sandy clay loam to clay. While, in sub-surface clay and colour was varied from dark grayish to black. The bulk density values of the soils were low at surface compared to sub-surface layers. Water holding capacity and volume expansion values varied according to clay content. Soil pH was neutral to moderately alkaline while sub-surface was more alkaline than surface. Surface and sub-surface soil samples of the study area were found to be normal in soluble salt concentration. The surface and sub-surface soil samples were low to high in organic carbon content. The available nitrogen content was low to medium in surface and sub-surface. The available P2O5 content was medium to high in surface and low to high sub-surface soils. The available K2O content of the soils varied from medium to high in both surface and sub-surface soil samples. The available calcium and magnesium contents were well above the critical limits at surface and sub-surface. Contents of available calcium and magnesium were more in sub-surface than surface soils. The soils were low to medium in available sulphur content which was higher in the surface soils. The soils of study area were sufficiently rich in Zn, Fe, Mn and Cu but some part of area were deficient in zinc and iron. All macro and micronutrients were significantly and positively correlated with organic carbon as it was the predominant factor, which controled availability of nutrients in soils. Spatial variability of soil properties was studied and maps were generated based on the data generated using geo-statistics. In the present study, the variability was observed in the availability of all the nutrients except calcium, magnesium, and copper at both surface and sub-surface soil samples. xx The site specific fertilizer recommendations for Rice, Maize and Sorghum for both surface and sub-surface levels in Chinnapalem village were developed utilizing the thematic maps of spatial variability of N, P and K status. A delineated variable rate of fertilization maps for NPK based on STCR to targeted yields of rice, maize and sorghum revealed that the corresponding recommendation and application of fertilizers was essential to improve the efficacy of fertilizer application and enhancing the returns to the growers. The hyperspectral data revealed that soil reaction, available Mg, Zn, Fe, Cu and Mn showed positive and significant correlation. However, EC and available S were negative and significant throughout visible and SWIR. From, Stepwise regression approach the poorest fit was observed in all the properties although the highest accuracy (R2=0.467) was found for available zinc, while lowest predictability (R2=0.028) was for sand. It can be summarized that geospatial techniques are highly reliable in generating natural resource database to integrate and assess their potential on spatial basis. The use of geostatistics enabled the assessment of heterogeneous nature of fertility variations. Integration of GIS with various models in the present study was highly useful in correlation studies between spectral indices and soil properties, generating the soil fertility and fertilizer recommendation maps and management of crop fields provided the real time availability of high spatial resolution satellite data is ready available.
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    ThesisItemOpen Access
    EFFECTS OF APPLICATION OF NANOPARTICULATE ZINC AND BORON ON GROWTH, YIELD AND NUTRIENT UPTAKE BY GROUNDNUT – SUNFLOWER CROPPING SYSTEM IN ALFISOLS
    (guntur, 2022-08-12) DEEPIKA, JANGAM; PRASAD, T.N.V.K.V.
    The present investigation on “Effects of Application of Nanoparticulate Zinc and Boron on Growth, Yield and Nutrient Uptake by Groundnut – Sunflower Cropping System in Alfisols” was conducted at RARS, Tirupathi, during 2018 and 2019. The nanoscale ZnO was prepared using oxalate decomposition technique, whereas nano boron was prepared using encapsulation method. The synthesized nanoscale ZnO and boron was characterized using the different techniques like UV-Vis, HR-TEM, XRD, FT-IR and DLS analysis. The synthesized nanoscale ZnO and boron was 37.2 and 53.6 nm in size with zeta potential of -37.7 mV and -28.3 mV, respectively. Pot culture experiment was conducted as a pilot study to know the phytotoxicity of foliar applied nanoparticulate ZnO and boron on groundnut. After completion of phytotoxic studies, a field experiment was carried out with groundnut – sunflower cropping system during kharif and rabi seasons of 2019, respectively in the R.A.R.S. farm, Regional Agricultural Research station, Tirupati. The experiment was laid out in Randomized Block Design with fourteen treatments and replicated thrice. Foliar application of nano ZnO and nano boron were done at 45 DAS of groundnut and ray floret opening stage of sunflower. Soil application treatments are given only for groundnut and residual effect was seen in sunflower crop. The results from the pot culture experiment revealed that application of 500 ppm nano ZnO (T5) produced taller plants with higher chlorophyll content and dry matter production of groundnut. Foliar application of 500 ppm nano ZnO (T5) showed significantly highest peroxidase, catalase and super oxide dismutase enzyme activities of groundnut measured at peg formation stage. Yield attributes of groundnut was xxi found maximum with the foliar spray of 500 ppm nano ZnO (T5). Significantly highest pod and haulm yield of groundnut was recorded with foliar application of 500 ppm nano ZnO (T5) which was on par with 400 ppm nano ZnO (T4), 300 ppm nano ZnO (T3), 500 ppm nano boron (T10) and 400 ppm nano boron (T9). Oil and protein content of groundnut was not significantly affected. However, highest oil content and protein content of groundnut was noticed with 500 ppm nano ZnO (T5). Nitrogen, phosphorus and potassium content at peg formation, pod development, pod and haulm of groundnut were significantly affected by foliar application of various concentrations of nanoparticulate zinc and boron. 500 ppm nano ZnO (T5) showed significantly highest nitrogen and potassium content whereas application of 500 ppm nano boron (T10) recorded highest phosphorus content of groundnut. Significantly highest zinc and boron content at all growth stages of groundnut was found with the foliar application of 500 ppm nano ZnO (T5) and 500 ppm nano boron (T10), respectively. Macro and micronutrient uptake by groundnut was significantly influenced by foliar application of various concentrations of nanoparticulate zinc and boron. 500 ppm nano ZnO (T5) showed significantly highest nitrogen, potassium, zinc, iron, manganese and copper uptake by groundnut at peg formation, pod development, pod and haulm of groundnut whereas phosphorus and boron uptake was recorded maximum with foliar application of 500 ppm nano boron (T10). A field experiment was conducted with the groundnut – sunflower cropping system. Results showed that RDF + foliar application of nano ZnO @ 200 ppm + nano boron @ 200 ppm (T14) recorded significantly highest plant height and dry matter production of groundnut and sunflower which was on par with RDF + foliar application of nano ZnO @ 150 ppm + nano boron @ 150 ppm (T13). Yield parameters viz., number of pods plant-1 and number of filled pods plant-1 of groundnut were significantly highest with the RDF + foliar application of nano ZnO @ 200 ppm + nano boron @ 200 ppm (T14) however, 100 kernel weight was observed to be non significant. Whereas in succeeding sunflower, treatment T14 (RDF + foliar application of nano ZnO @ 200 ppm + nano boron @ 200 ppm) recorded significantly highest number of filled seeds per head and number of unfilled seeds per head. Head diameter and 1000 seed weight was found to be non significant. Significantly highest pod, kernel, haulm yield of groundnut and seed, stover yield of sunflower was recorded with RDF + foliar application of nano ZnO @ 200 ppm and nano boron @ 200 ppm (T14) followed by RDF + foliar application of nano ZnO @ 150 ppm and nano boron @ 150 ppm (T13). Quality parameters of groundnut (oil and protein content) and sunflower (oil content) was found to be non significant due to foliar application of nanoparticulate zinc and boron. However, RDF + foliar application of nano ZnO @ 200 ppm + nano boron @ 200 ppm (T14) recorded higher quality parameters of both the crops. Significantly highest nitrogen, phosphorus, potassium, zinc and boron content at peg formation, pod development, pod and haulm of groundnut was recorded with RDF + foliar application of nano ZnO @ 200 ppm + nano boron @ 200 ppm (T14) followed by RDF + foliar application of nano ZnO @ 150 ppm + nano boron @ 150 ppm (T13). Whereas RDF + foliar application of nano ZnO @ 200 ppm + nano boron xxii @ 200 ppm (T14) significantly enhanced the nitrogen, phosphorus, potassium, zinc and boron content at vegetative, flowering, seed and stover of sunflower. Iron, manganese and copper content of both the crops were not significantly influenced by the foliar application of nanoparticulate zinc and boron. Macro and micronutrient uptake by groundnut and sunflower was significantly influenced by foliar application of nanoparticulate zinc and boron. RDF + foliar application of nano ZnO @ 200 ppm + nano boron @ 200 ppm (T14) showed significantly highest nitrogen, phosphorus, potassium, zinc, iron, manganese, copper and boron uptake at all stages of crop growth. Soil physical (bulk density, porosity and water holding capacity) and physico-chemical (pH, electrical conductivity and organic carbon content) properties after harvest of groundnut and sunflower did not vary significantly due to treatment effect. There was significant in available N, P2O5, K2O, zinc and boron status in soil with soil application of ZnSO4 @ 50 kg ha-1 + borax @ 10 kg ha-1 (T5) after the harvest of groundnut and sunflower and it was on par with RDF + Soil application of ZnSO4 @ 50 kg ha-1 (T3) and RDF + Soil application of borax @ 10 kg ha-1 (T4). Non significant difference was recorded in available iron, copper and manganese content, microbial population and enzyme activities in soil at harvest of groundnut and sunflower crops. The gross returns and net returns of groundnut and sunflower were higher in RDF + foliar application of nano ZnO @ 200 ppm + nano boron @ 200 ppm (T14). The B:C ratio of groundnut was found higher in RDF + foliar application of nano ZnO @ 150 ppm (T9) and RDF + foliar application of nano ZnO @ 200 ppm (T10) whereas in case of sunflower significant increase in benefit cost ratio was observed with RDF + foliar application of nano boron @ 200 ppm (T12). The poor growth, low productivity and a lesser amount of returns in groundnut and sunflower was as usual with the crop not received any fertilizers. Based on the outcome of pot culture experiment, it was concluded that no phytotoxicity was observed in all the concentrations and nanoscale materials tested in the present study which indicates use of nanoscale materials for field studies in a safest manner to agricultural crops. The concentration of 500 ppm of nanoparticulate ZnO and boron was identified as optimum dose. The field experiment concluded that foliar application of nano ZnO and nano boron @ 150 and 200 ppm in combination or alone found to be best treatment for getting maximum yields with higher monetary returns for groundnut - sunflower cropping system.