Ecology, Environment and Conservation Paper

Supplement Issue, Dec. 2014; Page No.(251-254)

INFLUENCE OF RICE VARIETIES AND DOSE OF PHOSPHATIC FERTILIZER IN MUSTARD ON YIELD AND ECONOMICS OF MUSTARD IN RAINFED RICE BASED CROPPING SYSTEM

Kiran Rana, Santosh Kumar and P.K. Mishra

Abstract

A field experiment was conducted during kharif and rabi season of 2011-12 at the Agricultural Research Farm of the Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh to find out appropriate treatment among different combination of rice varieties and dose of phosphatic fertilizer viz., Diammonium phosphate in mustard in rainfed rice based cropping system. Among the different rice varieties grown in kharif season, rice cv. Vandana resulted in higher number of primary branches per plant (6.9), number of siliquae per plant (338.57), number of seeds per siliqua (13.43) and siliqua length (5.09 cm) of mustard crop grown in rabi season. It has significantly increased seed yield (18.54 qha-1) and stover yield (55.60 qha-1) in subsequent mustard. All yield attributing characters shown significant improvement on application of Diammonium phosphate @150 kg ha-1 over DAP@ 100 kg ha-1. The highest seed yield (17.96 qha-1) and harvest index (24.67) was noted with application of DAP @ 150 kg ha-1. Among different treatment combinations, cultivation of rice cv. Vandana in kharif followed with application of Diammonium phosphate @ 150 kg ha-1 rabi season mustard resulted in maximum gross returns (Rs 93004.67 ha-1) and net returns (Rs. 52741.77 ha-1) leading to maximum benefit : cost ratio (2.30).

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