Abstract
A field experiment was conducted during rabi 2008-09 and 2009-10 at Aklera, Jhalawar to find out the best moisture conservation practice and sulphur source for increasing productivity, profitability and water use efficiency (WUE) of Indian mustard [Brassica juncea (L.) Czern. & Coss] under rainfed conditions. Straw mulch @ 4 t/ha ap- plied at 21 DAS + kaolin 6% spray at 60 DAS significantly increased the growth, yield attributes, seed (1.65 t/ha), oil yield (629.3 kg/ha), nutrients (NPS) uptake and net return ( 20,197/ha) compared to other moisture conserva- tion practices. Amongst the sulphur sources, bentonite sulphur gave significantly higher growth, yield attributes, seed yield (1.50 t/ha), oil yield (568.3 kg/ha), nutrients (NPS) uptake, net return ( 18,948/ha) and B: C ratio (1.18) than other sources of sulphur. Maximum production and economic efficiencies, consumptive use (212 mm), rate of moisture use (1.55 mm/day) and water use efficiency (7.80 kg/ha-mm) were with straw mulch 4 t/ha + kaolin 6% spray over no mulch. Application of bentonite sulphur gave higher production and economic efficiencies, con- sumptive water use (208 mm), rate of moisture use (1.52 mm/day) and water use efficiency (7.22 kg/ha-mm) than to gypsum and wettable sulphur.
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