Role of inorganic and organic amendments in ameliorating the effects of brackish water for raya-sunflower production

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Research Paper 01/06/2018
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Role of inorganic and organic amendments in ameliorating the effects of brackish water for raya-sunflower production

Muhammad Aslam Avais, Ghulam Qadir, Khalil Ahmed, Muhammad Ilyas, Amar Iqbal Saqib, Imtiaz Ahmad Warraich, Muhammad Qaisar Nawaz, Muhammad Sarfraz, Muhammad Anwar
Int. J. Biosci.12( 6), 117-122, June 2018.
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Arid to semi-arid climate of Pakistan necessitates the artificial irrigation to undertake the agricultural pursuits and farmers are being forced to use the underground water reserves which are 60 to 70 % brackish in nature. The blind use of this resource without any management practice is building up salinity even in the soil that has high potential for crops. Therefore a field study was conducted for three years to evaluate the deleterious effect of brackish water on growth and yield of raya and sunflower crops. Treatments included were; T1: Brackish water, T2: Gypsum @ 100% GR of RSC of water, T3: Gypsum @ 50% GR of RSC of water, T4: Sulfuric acid @ 100% GR of RSC of water, T5: Poultry Manure @ 10 t. ha-1, T6: Press mud @ 10 t. ha-1. A normal soil {(pHs= 8.09, ECe = 3.18 dS m-1 and SAR= 8.65 (mmol L-1)1/2} was selected, prepared and leveled. Experiment was laid out in RCBD with three replications. Tube-well water ECiw= 1.34 dS m-1, RSC= 8.50 me L-1 and SAR= 12.72 (mmol L-1)1/2 was used for irrigation. Data regarding plant height grain/achene yield of raya and sunflower crops was recorded at maturity. Soil samples were collected after harvesting of each crop. Pooled data of three years showed that grain yield of raya(1.22 t. ha-1) and sunflower(2.19 t. ha-1)was significantly higher in T2 (Gypsum @ 100% GR of RSC of water) followed byT5 (Poultry Manure @ 10 t. ha-1). The lowest grain (1.02 t. ha-1) and achene(1.70t. ha-1) yield was recorded in control T1 (Tube well water). In case of soil analysis pHs, ECe and SAR were substantially improved with all the applied organic and inorganic amendments as compared to control.


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