ASSESSMENT OF WELL WATER QUALITY AND SOIL AS INFLUENCED BY CANAL WATER SEEPAGE ALONG THE SIDES OF MULA LEFT BANK CANAL IN RAHURI TAHSIL
| dc.contributor.advisor | Bhakare, B.D. | |
| dc.contributor.author | Nikam Indrajeet V. | |
| dc.date.accessioned | 2019-09-20T05:50:25Z | |
| dc.date.available | 2019-09-20T05:50:25Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | An investigation entitled “Assessment of well water quality and soil as influenced by canal water seepage along the sides of Mula left bank canal in Rahuri tahsil” was carried out during the year 2005-06. One hundred samples each of well water and soil were collected for water and soil quality appraisal on 10 different sites on canal at 100, 200, 300, 400 and 500 m distance away from canal on both sides. Ten canal water samples were collected at each site for quality appraisal. The water samples were analysed for various water quality parameters viz., pH, EC, cations (Ca2+, Mg2+, Na+, K+), anions (CO32-, HCO3-, Cl-, SO42-), boron and nitrate. The water samples were alkaline in nature with dominance of sodium and sulphates. Majority of the well waters were in very high and high salinity class, indicating that the waters were moderately suitable for irrigation with good drainage and management practices. From the constituents analysed the derived parameters like SSP, SAR and RSC were estimated. The average values of pH, EC and SARiw were 8.33, 1.88 dSm-1 and 7.08, respectively. The RSC values of the well water samples were ranging from nil to 1 me L-1. The total cation concentration was in the order of Na+ > Mg2+ > Ca2+ > K+. According to criteria for the suitability of irrigation water, classes were of following order : C3S1 > C4S1 > C2S1. The average boron and nitrate concentration noticed in water samples was under permissible limit i.e. 0.75 and 1.78 me L-1, respectively. The soil saturation extract was prepared by following standard methods and analysed for different salinity appraisal parameters. The average values of pHe, ECe and SAR were 8.33, 1.43 dSm-1 and 6.30, respectively. Only 23 per cent samples were under normal class while most of the soils were categorized under slight (32) and moderately (45) saline class, indicating that the soils are getting problematic. The relative proportion of cations was in the following order Na+ > Ca2+ > Mg2+ > K+, while anions in the order of SO42- > Cl- > HCO3- > CO32-. The concentration of Boron in majority soils (81) was in safe limits while the nitrate concentration was increased to certain extent.The soil and water samples were also collected to simulate the effect of distance of well and soil from canal on its chemical properties. There was decrease in pH, EC (2.35 to 1.42 dSm-1), total cations (28.46 to 20.23 meL-1) and anions (28.36 to 20.76 meL-1), boron and nitrate concentration and slight decrease in SAR, SSP of well water at the distance of 100, 200, 300, 400 and 500 m away from the canal. Similar decrease was also observed in soil samples near by the same wells. The decrease in Ece (4.57 to 2.24 dSm-1), total cations (24.31 to 16.93 meL-1), total anions (24.76 to 17.49 meL-1), boron and nitrate was also observed for the soil samples at the distance of 100, 200, 300, 400 and 500 m away from the canal. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810128700 | |
| dc.keywords | MULA LEFT BANK CANAL | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 149pp | en_US |
| dc.publisher | Mahatma Phule Krishi Vidyapeeth, Rahuri. | en_US |
| dc.sub | Agricultural Engineering | en_US |
| dc.subject | null | en_US |
| dc.theme | Agricultural Engineering | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | ASSESSMENT OF WELL WATER QUALITY AND SOIL AS INFLUENCED BY CANAL WATER SEEPAGE ALONG THE SIDES OF MULA LEFT BANK CANAL IN RAHURI TAHSIL | en_US |
| dc.type | Thesis | en_US |