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Field experiments for two years during 2013 and 2014 were conducted to study the effect of canal and untreated domestic sewage water on the soil characteristics and yield of cotton, at student farm, Sindh Agriculture University Tandojam. The cotton variety used in the experiment was Haari dost. The study consists of eight treatments with interval of 20 days. Results of analysis of both the treatments revealed that EC, O.M, N, P, K, CO3, HCO3 , Cl, SO4 , Ca, Mg, Na, K, P, Cd, Pb, Cr, were higher in domestic sewage water as compared to canal irrigation water. pH of experimental field decreased from 7.8 to 7.5 within two consecutive years of domestic sewage water application, whereas increase in EC from 0.86 to 1.39, organic matter from 0.58 to 1.57 %, total Nitrogen from 0.03 to 0.08 %, available Phosphorus from 2.35 to 3.45 mgkg -1 and exchangeable Potassium from 180 to 330 mgkg -1was increased but the contents found were within permissible limit by FAO and NEQS. Maximum sympodial branches, plant height, productive bolls, boll weight, yield plant-1 and ha-1 were obtained in T1 followed by T2. The lowest results were recorded in T8. Domestic sewage water can be used for better production of cotton as it increases O.M, Total N, available P and exchangeable K in soil.
Qazi Mehmood Ali, Muhammad Ibraheem Keerio, Shamsuddin Tunio, Inayatullah Rajpar. (2019) EFFECT OF CANAL AND UNTREATED DOMESTIC SEWAGE WATER ON THE SOIL CHARACTERISTICS AND YIELD OF COTTON, , Volume 16, Issue1.
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