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ThesisItem Open Access Effect of different nutrient management practices on cotton productivity and fertility of soil(CCSHAU, Hisar, 2019-06) KOCHAR, DEEPAK; Jakhar, Devender SinghThe field experiment was conducted on Research Farm of Krishi Vigyan Kendra, Sirsa during kharif season of 2018-19, to study effect of different nutrient management practices on cotton productivity and fertility status of soil. The experiment was laid out in a randomized block design (RBD) with following treatments i.e. T1- Control, T2- RDF on soil test basis (N in three split doses at basal, 45 and 75 DAS), T3- RDN + Azotobacter, T4- 75 %RDN + Azotobacter, T5- 75 %RDN + Azotobacter + 3 foliar spray of 2.5 % Urea, T6- 75 %RDN + 3 foliar spray of 2.5 % Urea, T7- 100 % RDN in four split doses @sowing, 45, 75, 100 DAS and T8- 75 % RDN in four split doses @sowing, 45, 75, 100 DAS + 3 foliar spray of 2.5 % Urea. The treatment were replicated thrice in a net plot area of 6 m x 5 m. Recommended dose of fertilizers and other package of practices were uniformly adopted in all the treatments for growing healthy crop. All foliar sprays were applied from flowering to peak boll formation stage at 10 days interval. The result revealed that the plant population was not significantly affected with different nutrient management treatments. Application of 75 % RDN + 3 foliar spray of 2.5 % urea (T6) recorded highest seed cotton yield (2948.89 kg ha-1), boll weight (4.06 g), seed cotton yield per plant (200.33 g) and number of bolls per plant (49.67). The highest dry matter (87.34,279.40,334.54 and 328.19 g) was in T3 at square formation and flowering stage while at 50 % boll opening it was highest in T2 and at harvesting in T6. Highest uptake on NPK at harvesting was observed in T6. The organic carbon differ non significantly with in treatment and showed a decreasing from square formation to harvesting. The available NPK increase from its initial value and then decreased continuously as the crop reached towards maturity. The available NPK was highest in T3 (234.70, 230.00, 152.40 and 135.50 kg ha-1), T4 (23.0, 25.1, 23.1 and 21.7 kg ha-1) and T3 (277.23, 280.47, 257.77 and 246.57 kg ha-1) at square formation, flowering, 50 % boll opening and at harvesting stage respectively and lowest available NPK was in control. The MBC of soil decrease from its initial value up to flowering and then increase and reached near to its initial value at harvesting and recorded highest in T7. Highest net income of (Rs.68,214/ ha) and B: CThesisItem Open Access Management of waterlogging in Hisar district using Geo-spatial techniques(CCSHAU, Hisar, 2019-09) Santosh Rani; Mukesh KumarWaterlogging and salinity are the dual problem which are mainly found in irrigated area of developing countries like India. Waterlogging causes change in cropping pattern which ultimately leads to inefficient use of land. Geo-spatial techniques were found effective to represent spatial distribution of surface waterlogging of Hisar district as well as selected site (DDUCE-OF) along with field validation. The study was conducted to identify and map the extent of waterlogging and groundwater quality in Hisar district through Geo-spatial techniques and selection of site DDUCE-OF, CCSHAU, Hisar to provide suitable measures for management of waterlogging and salinity. The maps of water table depth and groundwater quality for pre and post monsoon were generated for the years 2013 to 2018. LANDSAT-8 satellite image was effectively used for determining surface waterlogged area which found to be 7.76 percent in Hisar district. Analysis of water table depth maps for both pre and post monsoon of Hisar district generated in GIS environment for the years 2013 to 2018 reveals that in post monsoon area (average 0.80 %) under fully waterlogged ( 4 dS/m) at top layer (0-15 cm) of the soil surface and it was decrease with the depth. Hence suitable measures such as subsurface drainage system, irrigation management, salt tolerant crops, lining of the water conveyance system and water storage tanks are the major management practices suggested for the management of waterlogging and soil salinity at DDUCE-OF, CCSHAU, Hisar.