Browsing by Author "GEETANJALI"
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ThesisItem Open Access DYNAMICS OF ABOVEGROUND VEGETATION BIOMASS AND CARBON STOCKS ALONG THE ALTITUDINAL GRADIENTS AND OVERSTOREY COMPOSITION TYPES IN THE TEMPERATE REGION OF HIMACHAL PRADESH(UHF,NAUNI, 2023-10-11) GEETANJALI; PRAVEEN KUMARABSTRACT The present study entitled “Dynamics of above ground vegetation biomass and carbon stocks along the altitudinal gradient and overstorey composition types in temperate region of Himachal Pradesh” was conducted in the temperate region of Himachal Pradesh, The main objective of the study was to determine the distribution pattern of above ground biomass and carbon stocks along the altitudinal gradients and dominant overstory types. Biomass of the total and individual vegetation components differed significantly along the altitudinal gradients and among different overstorey type, with significant interaction effects of altitude and overstorey types. Across all altitudinal gradients and dominant overstorey composition types, total, tree, shrub, herb and bryophytes biomass and carbon stocks on average were 372.7, 369.1, 2.76, 0.77 and 0.10 Mg ha−1, and 177.1, 175.3, 1.31, 0.37 and 0.05 Mg ha−1, respectively. The total and tree aboveground biomass and carbon stocks exhibited a gradual and consistent increase along the altitudinal gradients and decreased thereafter at higher altitudes. The study also emphasized that the role of dominant overstorey composition types in biomass and carbon stocks distribution in the temperate Himalayan region. However, shrub, herb and bryophyte biomass production responded differently for dominant composition types. The mixed wood stands were found to be more productive and had higher biomass and carbon stocks at higher altitudes. Therefore management interventions should aim at maintaining diverse range of overstory composition types for promoting the ecosystem functions and services of temperate Himalayan forest ecosystems. The study also found a weak but positive correlation between total and tree above ground biomass production to the availability of soil resources, which indicated that the relationship between local topography and forest vegetation structures might have played a major role in distribution of biomass than the soil resource availability along the altitudinal gradients in temperate Himalayan Region.ThesisItem Open Access STUDY ON NUTRIENT AVAILABILITY IN THE SOIL AMENDED WITH FLYASH AND ORGANIC MANURES AND ITS INFLUENCE ON GROWTH AND YIELD OF MAIZE (Zea mays L.)(UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR, 2017-07-30) GEETANJALI; K. NARAYANA RAO, M. V. RAVI, SHYAMRAO KULKARNIAn experiment entitled “Study on nutrient availability in the soil amended with flyash and organic manures and its influence on growth and yield of maize (Zea mays L.)” was conducted during the kharif of 2016 at Main Agriculture Research Station, Raichur. The experiment was laid out in RBD with 3 replications and eight treatment consisted of T1: Control, T2: Flyash @ 30 t ha-1, T3: FYM @ 10 t ha-1, T4: Muncipal compost @ 30 t ha-1, T5: Vermicompost @ 5 t ha-1, T6: Flyash @ 15 t ha-1 + FYM @ 5 t ha-1, T7: Flyash @ 15 t ha-1+ Muncipalcompost @ 15 t ha-1, T8: Flyash @ 15 t ha-1 + Vermicompost @ 2.5 t ha-1. For each treatment NPK @150:75:37.5 kg ha-1 + ZnSO4 @ 25 kg ha-1 applied. The results revealed that significantly higher grain and stover yield, nutrient uptake, water holding capacity, nutrient availability, microbial population, dehydrogenase activity, net returns and BC ratio were registered with application of (T7) flyash @ 15 t ha-1+ Muncipalcompost @ 15 t ha-1 followed by T6 and T8 compared to rest of the treatments. Application of fly ash and organic manures did not showed any significant effect on pH, EC, organic carbon, bulk density and porosity of soil as compared to application of flyash alone.