Effect of Marginal Quality Groundwater on Yield of Cotton Crop and Soil Salinity Status
In this paper, effect of marginal quality groundwater on yield of cotton crop and soil salinity was studied. In this connection, three irrigation treatments each with four replications were applied. These treatments were i) use of canal water (T1), ii) use of marginal quality groundwater from tubewell (T2), and iii) conjunctive use by mixing with the ratio of 1:1 of canal water and marginal quality tubewell water (T3). Water was applied to the crop cultivated in Kharif season 2011; its quantity has been measured using cut-throat flume. Total 11 watering each of 50 mm depth have been applied from 20th April to 20th July, 2011. Further, irrigations were stopped due to monsoon rainfall up to crop harvesting. Maximum crop yield (seed cotton) was observed under T1 which was 1,517 kg/ha followed by T3 (mixed canal and tubewell water) having 1009 kg/ha and T2 i.e. marginal quality groundwater having 709 kg/ha. This concludes that crop yield in T2 and T3 in comparison to T1was reduced by about 53 and 30% respectively. It has been observed that yield of cotton crop is below potential limit for three treatments due to unexpected rainfall at the time of full flowering season; thus the yield was adversely affected. However, salt deposition in soil profiles was not observed that is due to leaching effect of heavy rainfall occurred during monsoon season.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1326844Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1881
 Planning Commission of Pakistan, “Strategies Plan for five years”, Government of Pakistan, Islamabad, 1993.
 Ahmad, M. M., “Farm Water Management”, Proceedings of the Experts Consultation on Farm Water Management, PARC and FAO of the United Nations, Islamabad, P. 42, 1982.
 Iqbal Ali, “Irrigation and hydraulic structures Theory, Design and Practices, Published in Karachi, Pakistan, 1993.
 Ben, A., Gal, E., Ityel, L., Dudley, S. Cohen, U., Yermiyaho, E., Presnov, I., Zigmond and Shani, U., “Effect of irrigation water salinity on transpiration and on leaching requirements – A case study for bell peppers”, Agriculture Water Management, vol. 95 No. 5, pp.587-597, 2008.
 Gill, M.A., Chaudhry, M.H. and Afzal, S.N., “Note on: conservation of water resources in Pakistan”, Pakistan Journal of Water Resources, vol. 8 No. 1, pp. 39-43, 2004.
 Qadir, M.B.R. Sharma, A., Bruggeman, R., Choukr-allah and Karageh, F., “Non Conventional Water Resources and Opportunities for Augmentation to Achieve Food Security in Water Scarce Countries”, Agriculture Water Management, vol. 87, No. 1, pp. 2-22, 2007.
 Skogerboe, G.V. and Merkely, G.P., “Irrigation maintenance and operations leaching process,” Water Resources Publications, LLC, P.O. 260026, Highland Ranch, Colorado, U.S.A., pp. 248-254, 1996.
 ARI, “Recommendations for Cotton Crop.”, Agriculture Research Institute, Tando jam, pp. 15, 2010.
 Dashti R.A. "effect of conjunctive use of saline ground water and canal water on the yield and water use efficiency of cotton crop and soil salinity status” Masters Dissertation submitted to Mehran University of Engineering & Technology, Jamshoro, Sindh, Pakistan, 2011.
 Doorenbos, J. and Pruitt, W.O., “Crop water requirement”, Irrigation and Drainage Paper No. 24, FAO, Rome, p. 115, 1982
 Ahmed, R., “Disposal of saline drainage effluent”, DRIP Newsletter, vol. 14 No. 8, Drainage and Reclamation Institute of Pakistan, Tando Jam, pp.2, 1993.
 Patra, S.K., Ray, R. and Bhosh, K.K., “Effect of conjunctive use of brackish water and canal water on summer rice in a coastal saline waterlogged soil”, Oryza, vol. 36, No. 2, pp. 185-187, 1999.