Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810022180
Authors: MALLIKARJUN REDDY
Advisor: Dr. M.S. Ayyanagowdar
Title: COMPARISON OF SURFACE AND SUBSURFACE DRIP IRRIGATION ON QUALITY, YIELD AND WATER USE EFFICIENCY OF WATERMELON (Citrullus lanatus L.) UNDER RAICHUR REGION
Language: en
Type: Thesis
Agrotags: null
Abstract: An experiment was conducted at the Horticultural gardens of the Main Agricultural Research Station, Raichur (Karnataka State) in India during the period from February, 2014 to May, 2014 and November, 2014 to February, 2015 to determine the effect of drip systems and different drip irrigation levels, water use efficiencies and techno economics in watermelon grown under Raichur agro climate conditions. There are three main irrigation treatments and three sub treatments of irrigation levels namely drip irrigation with mulch (T1), drip irrigation without mulch (T2) and subsurface drip irrigation (T3) and 80 per cent ET (I1), 100 per cent ET (I2) and 120 per cent ET (I3) respectively. The water saved in drip irrigation over 120 % ET was found to be 32.90 % and 16.5 % for 80 % and 100 % ET respectively in first season and same trend followed in second season. Significant differences were observed in vine length, Number of branches, node of first female flower and TSS. The maximum vine length was recorded in T1I1 (96.87 cm) and lowest vine length was recorded in T3I3 (78.90 cm). Same trend fallowed in second season (winter). The maximum number of branches per plant was recorded in T1I1 (7) and lowest was recorded in T3I3 (4.25). TSS registered highest in T3I3 (14.58 brix) and lowest was found in T2I1 (14.13 brix). Same trend fallowed in second season. In term of water requirement for first season, I1, I2 and I3 respectively used 416.57 mm, 518.57 mm and 620.85 mm. In winter I1, I2 and I3 respectively used 236.23 mm, 293.29 mm and 350.35 mm. In terms of yield T1I1, T1I2, T1I3, T2I1, T2I2, T2I3, T3I1, T3I2 and T3I3 respectively used 71.18 t/ha, 65.28 t/ha, 60.78 t/ha, 48.28 t/ha, 51.73 t/ha46.74 t/ha, 53.03 t/ha, 49.13 t/ha and 45.91 t/ha. Same trend fallowed in second season. The water use efficiency of first and second season was observed highest in T1I1 (17.09 kg/m3) and T1I1 (29.94 kg/m3) respectively. The application and distribution efficiencies were found to be higher with drip irrigation treatments. All the drip irrigation treatments both season recorded higher benefit: cost ratio (4.26 to 5.21). The general trend considering the different parameters tested suggests that 80 per cent ET level of drip irrigation with mulch and subsurface drip irrigation can be used to achieve higher yield of water melon but in case of drip irrigation without mulch can be achieved higher yield in 100 per cent ET level
Subject: Soil and Water Engineering
Theme: COMPARISON OF SURFACE AND SUBSURFACE DRIP IRRIGATION ON QUALITY, YIELD AND WATER USE EFFICIENCY OF WATERMELON (Citrullus lanatus L.) UNDER RAICHUR REGION
These Type: Ph.D
Issue Date: 2015-06-30
Appears in Collections:Thesis

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