ISSN (0970-2083)

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Research Article Open Access

UTILITY OF CITY WASTEWATER AS A SOURCE OF IRRIGATION WATER FOR MUSTARD

Abstract

A pot experiment was conducted during rabi season of 2003- 2004, to study the effect of two concentrations of city waste water i.e. 50% WW and 100% WW over ground water on the performance of Brassica juncea cv. Varuna. In addition to this the crop was also supplied with different doses of potassium i.e. K0, K10, K20 and K30 kg ha 1 with a uniform basal dose of 80 kg N ha 1 and 30 kg P ha 1. Since city wastewater contained sufficient amount of nutrients when compared to groundwater, thus gave better response for leaf area, photosynthetic rate, stomatal conductance, photosynthetic water use efficiency, leaf NPK contents and seed yield of mustard where an increase of 13.23% was recorded by 100% wastewater over ground water. Physic-chemical characteristics of wastewater met the irrigation quality requirements and most of them were within the permissible limits of FAO 1994. Among various doses of potassium K20 proved optimum K10 deficient & K30 proved as luxury.

Dilshada Tabassum, Saba Azad and Akhtar Inam

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