Abstract
A field study was conducted at experimental farm of Interfaculty Department of Irrigation Water Management, Post Graduate Institute, M.P.K.V., Rahuri, Maharashtra, India during Rabi season of 2014-15. The experiment was laid out in randomized block design with eight treatments and three replications. The treatments consisted of four levels of fertilizer application as 100%, 75%, 75% with foliar sprays and 50% recommended dose (RD) under drip fertigation (DF) and compared with conventional irrigation and conventional fertilizer application. The significantly higher yield (52.62 t ha-1) of tomato was obtained in DF with 100% RD and it was at par with DF with 75% RD + 3 foliar sprays, DF with 100% RD, N and K drip, P through soil and DF with 75% RD. The drip method had lowest water use (458.4 mm) as compared with 878.6 mm in surface irrigation method. The treatment consisting DF with 100% RD provided net seasonal income (Rs. 3,93,311 ha-1), net extra income over control (Rs.1,52,056 ha-1). The maximum B:C ratio (3.96) was observed in DI with 100% RD, N and K drip, P through soil followed by DF with 100% RD. The fertigation with 75% RD in 18 weekly splits as per schedule is the best treatment for improved growth, yield and water productivity of tomato (var. Abhinav) cultivated in silty clay loam soils of Western Maharashtra.
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