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Bihar Agricultural University, Sabour

Bihar Agricultural University, Sabour established on 5th August, 2010 is a basic and strategic institution supporting more than 500 researchers and educationist towards imparting education at graduate and post graduate level, conducting basic, strategic, applied and adaptive research activities, ensuring effective transfer of technologies and capacity building of farmers and extension personnel. The university has 6 colleges (5 Agriculture and 1 Horticulture) and 12 research stations spread in 3 agro-ecological zones of Bihar. The University also has 21 KVKS established in 20 of the 25 districts falling under the jurisdiction of the University. The degree programmes of the university and its colleges have been accredited by ICAR in 2015-16. The university is also an ISO 9000:2008 certified organisation with International standard operating protocols for maintaining highest standards in teaching, research, extension and training.VisionThe Bihar Agricultural University was established with the objective of improving quality of life of people of state especially famers constituting more than two third of the population. Having set ultimate goal of benefitting society at large, the university intends to achieve it by imparting word-class need based agricultural education, research, extension and public service.

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20201
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Subject: Soil Science and Agriculture Chemistry × Author: Kumar, Santosh ×
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    ThesisItemOpen Access
    Characterization, classification and management of Hydromorphic soils under Khagaria District in Bihar
    (Department of Soil Science and Agricultural Chemistry, BAU, Sabour, 2020-11-13) Kumar, Santosh; Singh, Y. K.
    The present study was planned entitled on “Characterisation, classification and management of Hydromorphic soils under Khagaria district in Bihar”. Total six pedons was investigated for intensive study of morphological, physical, physio-chemical, fertility status, and their genesis through mineralogical analysis in hydromorphic areas.Total two hundred and twenty soils samples and forty two water samples were collected from occupying areas for proper interpretation and maintain its accuracy and precision level in this study area. Results revealed that P1, P3, P4 and P6 were fall under hyperthermic temperature regime as well as aquic moisture regime, and further taxonomically placed in Entisols, and P2 in Inceptisols. The mineralogical data (XRD analysis) revealed that land unit viz., P1, P3, P4, P5 and P6 have been observed three consecutive peak at 1.00 nm (001), 0.49 nm (002) and 0.33 nm (003) after advocated with various K-treatments like K25 °C, K110 °C, K 300 °C and K 550 °C, respectively, and its further indicative of predominance of mica, and rest of the mineral present in sub amount followed by smectite, kaolinite, chlorite and quartz, respectively. Whereas, land unit (P2) have been sharply observed sharp peak at 0.71 nm after advocated with Ca-Eg solvation which pose to significant amount of smectite content was prevailed. Whereas, other mineral was evident in sub amount followed by mica, kaolinite, chlorite and quartz, respectively. The intensive study of physical properties of pedons like sand, silt and clay content were observed, and it varied from 1.8 to 72.0, 9.2 to 73.20 and 11.10 to 54.40 per cent, respectively. The uneven distribution of clay fraction was justifying the fluvial action of river. The bulk density and water holding capacity were varied from 1.31 to 1.63 Mgm-3 and 30.77 to 45.03 per cent respectively. While, physio-chemical properties of pedons (P1 to P6), soil reaction was varied from 7.00 to 8.00,and ∆pH (pH 1N KCl - pH H2O) wasvaried with-0.3 to -0.40 unitdifferencewhich was referred to negatively charged was predominate on soil colloids. The EC value ranged from 0.81 to 1.09 (dSm-1), and none of samples faced to salinity problem in this areas. The ESP, and CEC Cmol (P+)kg-1and BS value range from 1.54 to 9.07, 10.10 to 41.00, 81.49 to 99.66, respectively. From fertility point of view, the value of organic carbon content varied from 0.16 to 0.74 per cent. The available nitrogen, available phosphorus and available potassium content were varied from 104 to 341, 4.65 to 17.9, 249 to 392 kg ha-1, respectively. In general, major nutrient content was observed higher at surface layer, and further decreasing at sub-surface layer. While, as per concerns of DTPA- micronutrients, the DTPA-Fe, Mn, Zn and Cu content of surface and sub-surface layers were placed under above the critical limit. Thephysico-chemical properties of surface samples in hydromorphic areas, the value of soil pH (1:2.5) and EC1:2.5 (dSm-1) and OC (%) was varied from 5.76 to 8.61, 0.28 to 0.58 and 2.50 to 5.70 (%), respectively.From fertility point of view, the content of available nitrogen, available phosphorus and availablepotassium of surface soils were varied from low, low to medium and high in nature. In respect of micronutrient content, the DTPA-Fe, Mn, Zn and Cu content ranged from 2.83-8.53 and 2.41-19.90, 0.37-4.44, 0.28-2.46 mg kg-1, respectively at surface layers (0-15 cm) in studied areas. In characterisation of water quality resources, pH value was ranged from 6.83 to7.89 i.e., neutral to alkaline in reaction. As per concern of EC, all water samples were placed under non-saline in nature. The irrigation water quality classification (USSL, 1954), 5.56, 52.77 and 41.67 per cent water samples were placed under C1S1, C3S1 and C2S1 class and none of the samples were placed under C4S1 class. The SAR and RSC value of water samples ranged from 2.59 to 4.47 and -6.20 to 2.20 meqL-1, respectively. As per soil site suitability classproposed by Sys et al. (1991), P1, P3 and P5 were placed under moderately suitable (S2) for paddy, wheat, soybean, maize and sunflower crop, whereas, P2 and P4 were placed under marginal suitable (S3) for paddy, wheat, soybean, maize and sunflower, respectively. However, based on the integration of various parameters like soil limitation (Soil texture, structure and soil fertility constraints), and ground water potential (pH, EC, RSC, SAR) enable to improved the productivity potential in Hydromorphic areas.