PRODUCTIVITY, QUALITY AND ECONOMIC RETURNS IN FCV TOBACCO (NICOTIANA TABACUM) WITH CONJUNCTIVE USE OF ORGANIC MANURES AND NITROGEN UNDER IRRIGATED ALFISOLS OF ANDHRA PRADESH

摘要

A field experiment with flue-cured Virginia tobacco (Nicot頰na tabacum L.) was conducted under irrigated Alfisols to evaluate the effect of conjunctive use of organic manures and nitrogen fertilizer on the yield, quality and economics of newly released variety Kanchan and also to find out an alternative to farm yard manure. It can be concluded that conjunctive application of FYM (10 t/ha) or sunnhemp in situ green manuring in combination with 120 kg N/ha would be optimum for the FCV tobacco variety Kanchan for obtaining higher yield coupled with superior quality characters and also to realise higher net returns and B: C ratio in northern light soils (NLS) of Andhra Pradesh. Sunnhemp in situ green manuring can be successfully used as alternative organic manure in NLS when the FYM is scarce.