EFFECTIVE USE OF THERMAL POWER PLANT WASTEWATER AS A SOURCE OF IRRIGATION AND NUTRIENTS IN CROP PRODUCTIVITY OF LINSEED (LINL1M LISITATISSMUM L.)A. AKHTAR, S. SINGH, S. SAEED, S. JAVID, I. AHMAD, N.A. KHAN AND A. INAM
A pot experiment was conducted to test the suitability of thermal power plant wastewater (TPPVV) as a source of irrigation due to the presence of some essential plant nutrients and its impact on growth, yield and oil content of linseed cv. Neelam. The crop was grown with TPPVV or ground water (GW) and supplemented with four doses of nitrogen (N0, N45, N68, N90) along with uniform basal dose of phosphorus and potassium at the rate of 30 kg h-' each. The TPPW contained higher amount of nitrogen, potassium, sulphate, sodium, chloride, calcium, carbonates, suspended and dissolved solids etc. compared with GW. Soil showed no significant changes in water-soluble salts, electrical conductivity (EC), cation exchange capacity (CEC), pH, organic carbon, potassium, calcium magnesium, sodium etc. after receiving the TPPW irrigation. Morever, the application of TPPW proved advantageous over GW, enhancing growth, seed yield and oil content of linseed. Thus, it may be concluded that TPPW may be used profitably for the cultivation of linseed.
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