Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810102684
Authors: HARSHITHA, M
Advisor: PRASANTHI, A
Title: STUDIES ON THE EFFECT OF URBAN SEWAGE WATER OF TIRUPATI ON THE SOIL PROPERTIES AND YIELD OF RICE
Publisher: Acharya N.G. Ranga Agricultural University
Language: en_US
Type: Thesis
Pages: 183
Agrotags: null
Keywords: URBAN, SEWAGE WATER, TIRUPATI, SOIL, YIELD, RICE
Abstract: The present investigation was carried out to know the effect of sewage water on soil properties, accumulation of heavy metals in rice straw and grains and yield of rice crop in Guravarajupalle village of Renigunta mandal in Chittoor district of Andhra Pradesh. For this purpose, 100 surface soil samples, 12 sewage water samples, 100 each straw and grain samples of rice crop and yield data of the rice crop were collected. Soil samples were analyzed for physico-chemical and chemical properties and sewage water samples were analyzed for physico-chemical and chemical properties and straw and grains of rice crop were analysed for accumulation of heavy metals. The sewage water irrigated soils were slightly acidic to strongly alkaline in reaction, non saline to slightly saline in nature and low to high in organic carbon. The available nitrogen, P2O5 and K2O in sewage water irrigated soils were low to high. The available calcium, magnesium and sodium were found to be sufficient in sewage water irrigated soils. xix The micronutrients such as Fe, Mn, Cu and Zn were deficient to sufficient in sewage irrigated soils of Guravarajapalle village. The heavy metals such as Cr, Ni and Pb were within permissible limits except Cd, which exceeded the permissible limit. The heavy metals in the sewage waters irrigated soils were in the order of Pb > Ni > Cd > Cr in the study area. Sewage water samples were medium to high in pH, low to medium in EC, high in organic carbon, low to medium in N, low to medium in P, medium to high in K and low to medium in Ca, Mg and Na. However, the micronutrients such as Fe, Zn, Mn and Cu were within the permissible limits in sewage water samples. The heavy metals such as Cr, Ni and Pb were within permissible limits except Cd, which exceeded the permissible limit in the sewage water samples. The heavy metals in the sewage waters were in the order of Cd > Pb > Ni > Cr. The heavy metals such as Cr, Ni and Pb were within permissible limits except Cd, which exceeded the permissible limit in straw and grain samples of rice crop. The heavy metals in straw and grain samples were in the order of Pb > Ni > Cd > Cr. The yield of rice crop during kharif, 2016-17 was higher as compared to that of yield of rice crop during kharif, 2017-18. The higher yields during kharif, 2016-17 was due to irrigation of soils of Guravarajupalle village with sewage water. However, the low yields in kharif, 2017-18 was due to the fact that, more availability of irrigation water due to heavy rains which may be lead to lower yields due to dilution of the sewage water, which consequently decreased concentration of nutrients in sewage water causing less accumulation of nutrients in rice fields.
Description: D5734
Subject: Soil Science and Agriculture Chemistry
Theme: STUDIES ON THE EFFECT OF URBAN SEWAGE WATER OF TIRUPATI ON THE SOIL PROPERTIES AND YIELD OF RICE
Research Problem: STUDIES ON THE EFFECT OF URBAN SEWAGE WATER OF TIRUPATI ON THE SOIL PROPERTIES AND YIELD OF RICE
These Type: M.Sc
Issue Date: 2018
Appears in Collections:Thesis

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