EVALUATION OF DIFFERENT TREE BORNE OILSEEDS ESTABLISHED UNDER AGROFORESTRY SYSTEM
| dc.contributor.author | DHANUSH, S. K. | |
| dc.date.accessioned | 2020-10-07T06:05:24Z | |
| dc.date.available | 2020-10-07T06:05:24Z | |
| dc.date.issued | 2019-08-17 | |
| dc.description.abstract | In order to fight the ever-increasing pressure on forest and to utilize the natural resources in a sustainable way for production of goods and services, cultivating trees on arable lands has become necessary. In this context, a field experiment was carried out in agroforestry block at ZARS, UAS, GKVK, Bengaluru to study the growth performance, amount of carbon sequestered and to analyse the soil fertility status influenced by tree borne oilseed species under agroforestry system. The experiment was laid out in Randomised Complete Block Design with seven treatments i.e., tree species (Simarouba glauca, Melia dubia, Azadirachta indica, Melia azedarach, Pongamia pinnata, Madhuca latifolia and Calophyllum inophyllum) and replicated three times. Fallow land (without crops) was an additional treatment as control to compare the influence of tree species on soil chemical properties at 15 and 30 cm depth. Based on the performance of growth and yield trait analysis, Melia dubia recorded significantly higher tree height (12.72 m), DBH (38.61 cm), wood volume (0.848 m3), canopy spread (14.78 m in N-S and 11.91 m in S-W direction) and light reduction percentage (66.46 %) as against other tree species. Melia dubia was able to sequester 268.4 tonnes of CO2 followed by Simarouba glauca which sequestered 162.5 tonnes of CO2 and Pongamia pinnata which captured 150.5 tonnes of CO2. This indicated that, Melia dubia, Simarouba glauca and Pongamia pinnata were highly promising tree species for carbon sequestration over other tree species. Soil fertility status was considerably better in association with trees as against fallow land. Soil pH was found to be low in association with trees whereas, soil organic carbon, available N, P & K were significantly higher under tree species. Pongamia pinnata, Melia dubia and Simarouba glauca significantly improved the soil fertility status. The study revealed that the nutrients were concentrated in the upper 15 cm of soil compared to 30 cm depth which infers trees have a positive influence on soil fertility status. | en_US |
| dc.identifier.other | Th-12371 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810152701 | |
| dc.keywords | OILSEEDS ,AGROFORESTRY, Melia dubia | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 189 | en_US |
| dc.publisher | UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK, BENGALURU | en_US |
| dc.sub | Environmental Science | en_US |
| dc.theme | TREE BORNE OILSEEDS | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | EVALUATION OF DIFFERENT TREE BORNE OILSEEDS ESTABLISHED UNDER AGROFORESTRY SYSTEM | en_US |
| dc.type | Thesis | en_US |