"Effect of Different Irrigation and Fertigation Schedule in Broccoli Under Drip Irrigation"
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Date
2019-10
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Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu
Abstract
This study was conducted at Research Farm, Chatha, SKUAST-J, during the year 2018. The experiment was laid out in strip plot design with three replications. The treatments comprised of three dripirrigation schedules viz., I1– Drip irrigation at 100% ETc , I2– Drip irrigation at 75% ETc and I3– Drip irrigation at 50% ETc , four fertigation levels viz., F1-100% RFD of NPK as solid fertiliser, F2-75% RFD of NPK as solid fertiliser + 25% through fertigation , F3-50% RFD of NPK as solid fertiliser + 50% through fertigation and F4-25% RFD of NPK as solid fertiliser + 75% through fertigation and control (IW/CPE=1.0 with RFD as solid fertilizer). The best treatment combination obtained was I1F3. It resulted in highest (18.72 t/ha) curd yield and maximum (4.59) B:C ratio.The curd yield of broccoli increased with increase in the level of applied water up to 100% ETc. Drip irrigation at 100 % ETc was found to be the optimum irrigation schedule for broccoli as it provided 38.51 % higher curd yield of broccoli and saved 13.08 % irrigation water over control. Likewise, in fertigation the highest curd yield of broccoli was recorded at F3(50% RFD of NPK as solid fertiliser + 50% through fertigation). This treatment increased curd yield of broccoli by 39.45 % over control. Also soil moisture results indicated that thesoil water content increased with increase in drip irrigation level from I3 (50%ETc) to I1 (100%ETc). The drip irrigation saved water to the tune of 13.08, 32.25 and 51.40%, respectively under I1 (100% ETc), I2 (75 % ETc) and I3 (50% ETc) irrigation schedules over Control (IW/CPE=1.0) .The net returns were highest in the treatment I1F3 (Rs 4,61,201.5) and lowest in control (Rs 2,31,280) where as the benefit: cost ratio under respective treatments was 4.59 and 2.85.
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