Loading...
Thumbnail Image

Assam Agricultural University, Jorhat

Assam Agricultural University is the first institution of its kind in the whole of North-Eastern Region of India. The main goal of this institution is to produce globally competitive human resources in farm sectorand to carry out research in both conventional and frontier areas for production optimization as well as to disseminate the generated technologies as public good for benefitting the food growers/produces and traders involved in the sector while emphasizing on sustainability, equity and overall food security at household level. Genesis of AAU - The embryo of the agricultural research in the state of Assam was formed as early as 1897 with the establishment of the Upper Shillong Experimental Farm (now in Meghalaya) just after about a decade of creation of the agricultural department in 1882. However, the seeds of agricultural research in today’s Assam were sown in the dawn of the twentieth century with the establishment of two Rice Experimental Stations, one at Karimganj in Barak valley in 1913 and the other at Titabor in Brahmaputra valley in 1923. Subsequent to these research stations, a number of research stations were established to conduct research on important crops, more specifically, jute, pulses, oilseeds etc. The Assam Agricultural University was established on April 1, 1969 under The Assam Agricultural University Act, 1968’ with the mandate of imparting farm education, conduct research in agriculture and allied sciences and to effectively disseminate technologies so generated. Before establishment of the University, there were altogether 17 research schemes/projects in the state under the Department of Agriculture. By July 1973, all the research projects and 10 experimental farms were transferred by the Government of Assam to the AAU which already inherited the College of Agriculture and its farm at Barbheta, Jorhat and College of Veterinary Sciences at Khanapara, Guwahati. Subsequently, College of Community Science at Jorhat (1969), College of Fisheries at Raha (1988), Biswanath College of Agriculture at Biswanath Chariali (1988) and Lakhimpur College of Veterinary Science at Joyhing, North Lakhimpur (1988) were established. Presently, the University has three more colleges under its jurisdiction, viz., Sarat Chandra Singha College of Agriculture, Chapar, College of Horticulture, Nalbari & College of Sericulture, Titabar. Similarly, few more regional research stations at Shillongani, Diphu, Gossaigaon, Lakhimpur; and commodity research stations at Kahikuchi, Buralikson, Tinsukia, Kharua, Burnihat and Mandira were added to generate location and crop specific agricultural production packages.

Browse

Search Results

Now showing 1 - 1 of 1
  • ThesisItemOpen Access
    PERFORMANCE OF LATE SOWN TORIA IN RICE FALLOWS UNDER INTEGRATED NUTRIENT MANAGEMENT PRACTICES
    (AAU, Jorhat, 2019-07) Bora, Priyanki; Ojha, N. J.
    A field experiment entitled “Performance of late sown toria in rice fallows under integrated nutrient management practices” was carried out at Instructional-cum- Research Farm, Assam Agricultural University, during the rabi season of 2017-18 and 2018-19. The experiment was laid out in Randomized Block Design and replicated thrice and consisted of ten treatments. The treatments were 100% Recommended dose of fertilizer (RDF) (40-35- 15 kg N-P2O5-K2O/ha + 10 kg borax/ha) (T1), 100% RDF + vermicompost @ 2t/ ha (T2), 100% RDF + vermicompost @ 2 t/ ha + 20 kg S/ha (T3), 100% RDF + vermicompost @ 2 t/ha + 20 kg S/ha + 4 kg Zn/ha (T4), 100% RDF + vermicompost @ 2 t/ha + 20 kg S/ha + 4 kg Zn/ha + seed treatment with biofertilizer consortia (T5), 75% RDF (T6), 75% RDF + vermicompost @ 2t/ ha (T7), 75% RDF + vermicompost @ 2 t/ha + 20 kg S/ha (T8), 75% RDF + vermicompost @ 2 t/ha + 20 kg S/ha + 4 kg Zn/ha (T9), 75% RDF + vermicompost @ 2 t/ha + 20 kg S/ha + 4 kg Zn/ha + seed treatment with biofertilizer consortia (T10). The soils of the experimental sites were sandy loam in texture, acidic in reaction (pH 5.2 and 5.5), medium in organic carbon (0.51 and 0.54%), available N (315.51and 328.71 kg/ha), available K2O (137.5 and 138.42 kg/ha) and available Zn(0.79 and 0.95 mg/kg) while low in available P2O5 (17.80 and 20.45 kg/ha), available S (16.12 and 19.83 kg/ha) and available B(0.21 and 0.25 mg/kg) in both the years, respectively. Experimental findings revealed that application of 100% RDF + vermicompost @ 2 t/ha + 20 kg S/ha + 4 kg Zn/ha + seed treatment with biofertilizer consortia (T5) resulted in significantly higher growth parameters viz., plant height, numbers of leaves per plant, leaf area index, dry matter production per plant and number of primary and secondary branches per plant and the highest yield attributing characters viz. length of siliqua, number of siliquae per plant, number of seeds per siliqua in both the years. The highest seed yield (945.21 and 1025.21 kg/ha in the year 2017-18 and 2018-19, respectively) and stover yield (2236.98 and 2292.54 kg/ha in 2017-18 and 2018-19, respectively) were also recorded in T5. However, oil content was significantly higher in treatment having 75% RDF + vermicompost @ 2 t/ha + 20 kg S/ha + 4 kg Zn/ha + seed treatment with biofertilizer consortia (T10) but protein content and oil yield of toria in both the years were significantly higher under the treatment T5. Similar effects of this treatment were also observed in respect of N, P, K, S, Zn and B-content in seed and stover and their uptake by seed and stover as well as total uptake as well as in terms of available N, P2O5, K2O, S, Zn and B in soil after the harvest of the crop in both the years. The highest gross return ( 61438.65/ha in 2017-18 and 66638.65/ha in 2018-19) and net return ( 28040.55/ha during 2017-18 and 33240/ha during 2018-19) were also the highest in T5. However, the highest B: C ratio of 2.78 during 2017-18 and 2.91 during 2018-19 were recorded in treatment having 100% RDF (T1).