Vol. 19 No. 1
Evaluation of yield, economics and various indices of water productivity of ginger under flexible moisture regime and nutrient management
Author(s): S. K. PATRA AND R. PODDAR
Abstract: An experiment was conducted during 2013-14, 2014-15 and 2015-16 in lower Indo-Gangetic plains to evaluate the different levels of irrigation and nutrient on yield, economics and various water productivity of ginger. The programme was laid out in a split plot design with four irrigation levels (rainfed, 0.6, 0.9 and 1.2 of IW/CPE) and three nutrition levels (100% recommended fertilizer dose (RFD), 75% RFD + 25% RFD as vermicompost (VC) and 50% RFD + 50% RFD as VC) with three replications. Pooled analysis showed that mean maximum rhizome yield, highest monetary profits and benefit-cost ratio (BCR) was recorded with watering at IW/CPE 1.2 complemented with 75% RFD + 25% RFD as VC which was almost identical with irrigation at IW/CPE 0.9 coupled with 75% RFD + 25% RFD as VC which gave an equivalent yield, higher monetary profits, BCR, CWP, IWP, ECWP and EIWP. Under water scarce, deficit irrigation at IW/CPE 0.6 with 75% RFD + 25% RFD as VC was found as a technical alternative. Lower CWP and ECWP were obtained with rainfed condition and IWP and EIWP with irrigation at 1.2 IW/CPE, both treatments supplemented with 50% RFD as fertilizers + 50% RFD as VC. Thus, irrigation at IW/CPE 0.9 in combination with 75% RFD + 25% RFD as VC can be recommended in this zone for ginger cultivation.
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