J.B. Gajera1*, P.D. Vekariya2 and S.P. Kachhadiya3
1Department of Agronomy, College of Agriculture, Junagadh Agricultural University,
Junagadh, Gujarat
2Main Dry Farming Research Station, Junagadh Agricultural University, Targhadia, Rajkot, Gujarat
3Main Oilseeds Research Station,Junagadh Agricultural University, Junagadh, Gujarat
Email: jay.gajera@yahoo.com
Received-05.10.2023, Revised-17.10.2023, Accepted-27.10.2023
Abstract: A field experiment was conducted during the summer season of 2019–20 on medium black soils at the Instructional Farm, Junagadh Agricultural University to study the Production potential and economics of summer groundnut (Arachis hypogaea L.) under different hydrogel levels at varying irrigation scheduling in south saurashtra agro-climatic zone. The field experiment was conducted in a split-plot design, comprising of 3 irrigation schedules, viz., irrigation water (IW): cumulative pan evaporation (CPE) ratio 0.60, 0.80 and 1.00 in main plots and 3 hydrogel levels, viz.,Control, 2.5and 5.0 kgha-1 in subplots, combined having 9 treatment combinations, which were replicated 4 times. The results revealed that an application of irrigation at IW:CPE ratio of 1.00 had significant effect on yield attributes and yield, viz., number of pods per plant (15.12), weight of pods per plant (9.93 g), seed index (48.15), pod yield (3286kg ha-1) and haulm yield (4021kg ha-1) and these ratio significantly improved the yield over IW:CPE ratio of 0.60 and 0.80.IW:CPE ratio 1.00 fetched highest net returns of 73,155`ha-1, with benefit: cost ratio 2.04. Application of 5 kgha-1 hydrogel resulted in the highest number of pods per plant (14.40), weight of pods per plant (9.53 g), seed index (46.53), pod yield (3171 kg ha-1) and haulm yield (3926 kg ha-1) and these level significantly enhanced summer groundnut yield over application of 2.5 kgha-1 hydrogel and the control. Application of hydrogel at 5.0 kgha-1 significantly enhanced net returns (68,971 `ha-1) and benefit: cost ratio (1.99) as compared to application of 2.5 kgha-1 hydrogel and the control.
Keywords: Summer Groundnut, Hydrogel, Irrigation Scheduling, Economics, Yield
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