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Drip Irrigation and Fertigation for Sugarcane in Deep Black Soils

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  022203,  2002 ASAE Annual Meeting . (doi: 10.13031/2013.9847) @2002
Authors:   V.G.Vaishnava, D.K.Shelke, P.R.Bharambe
Keywords:   ETC (Pan evaporation X KC), Fertigation, Irrigation Efficiency, Fertilizer use efficiency

An experiment was conducted at Water Management Research Centre, Parbhani on Sugarcane Variety CO-7714, during 2000-2001 on medium deep clayey soil for finding out optimum water requirement, water use efficiency under drip and fertilizer use efficiency. The treatments consisted of three irrigation schedules through drip I1 (0.6, 0.8, 1.0 and 0.8 ETc) I2 (0.8, 1.0, 1.2 and 0.6 ETc) and I3 (1.0, 1.2, 0.6 and 0.8 ETc) compared with surface irrigation at 1 IW/CPE with 70 mm depth and recommended dose of fertilizer (Soil application) as control, with three fertigation treatments

    i) F1 soil application 100 per cent ii) F2 100 per cent recommend dose through drip iii) F3 80 per cent recommend dose through drip iv) F4 60 per cent recommended dose of fertilizer through drip.
As regards irrigation treatments scheduling of irrigation as per I2 treatment recorded highest cane yield (179.96 t/ha) the other two irrigation treatments I1 (165.86 t/ha) and I3 (165.57 t/ha) were at par. The saving in irrigation water under I1, I2, I3 schedule was 29.57, 20.72 and 21.40 per cent. Application of 80 per cent (7 splits) recommended dose of fertilizer through drip gave highest sugarcane yield (182.84 t/ha) and found significantly superior over rest of treatments. Interaction effect fertilizer X irrigation was found significant. The irrigation schedule I1 coupled with 80 per cent recommended dose gave significantly higher cane yield of 199.48 t/ha. The fertilizer level F4 (60 per cent ) recommended dose of fertilizer through drip recorded highest fertilizer use efficiency of 57.56 X 10-2 tons/kg of NPK. Fertilizer use efficiency was lowest in control treatment as compared to rest of all.

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