Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810038092
Authors: KARAM A. ELZOPY
Advisor: Dr. H. T. CHANNAL
Title: STUDIES ON IRRIGATION REGIMES AND FERTIGATION LEVELS ON SOIL PROPERTIES, YIELD AND QUALITY OF TOMATO (Solanum lycopersicum L.) UNDER GREENHOUSE
Publisher: University of Agricultural Sciences, Dharwad
Language: en
Type: Thesis
Agrotags: null
Keywords: STUDIES ON IRRIGATION REGIMES AND FERTIGATION LEVELS ON SOIL PROPERTIES, YIELD AND QUALITY OF TOMATO (Solanum lycopersicum L.) UNDER GREENHOUSE
Abstract: A field experiment was conducted for two seasons during 2012-2013 at Hi-Tech-Horticulture unit, Saidapur, UAS, Dharwad to evaluate the effect of drip irrigation and fertigation levels on tomato hybrid STH-801 under greenhouse. The experiment was laid out with three drip irrigation regimes (40, 60 and 80 % ETc) and three fertigation levels (50, 75 and 100% RDF) in RCBD design with factorial concept and replicated thrice with one absolute control. The results showed that the highest plant growth, available nutrients in soil, nutrients uptake by plants, soil enzymes activity, yield of tomato (115.14 and 89.56 tonnes ha-1 in first and second season, respectively) and B:C ratio (3.39 and 4.39 in first and second season, respectively) were registered in I3 (80% ETc) irrigation regime. However, it was on par with I2 (60% ETc) irrigation regime (yield 114.97 and 89.26 tonnes ha-1; B:C ratio 3.38 and 4.38 in first and second season, respectively) but they were significantly superior over I1 (40% ETc) irrigation regime (yield 102.00 and 76.57 tonnes ha-1; B:C ratio 3.01 and 3.77 in first and second season, respectively). Similarly, application of F3 (100% RDF) recorded the highest plant growth, available nutrients in soil, nutrients uptake by plants, soil enzymes activity and yield of tomato (113.75 and 87.50 tonnes ha-1 in first and second season, respectively) which was on par with F2 (75% RDF) (113.31 and 86.84 tonnes ha-1 in first and second season, respectively) and significantly superior over F1 (50% RDF) (yield 105.05 and 81.05 tonnes ha-1 in first and second season, respectively). Irrigation at I2 (60% ETc) with fertigation at F2 (75% RDF) found to be optimum to attain higher plant growth, available nutrients in soil, nutrients uptake by plants, soil enzymes activity and yield of tomato (118.94 and 92.02 tonnes ha-1 in first and second season, respectively). However, irrigation at I1 (40% ETc) registered higher quality of fruits and water use efficiency (WUE) as compared to other irrigation regimes. Fertilizer use efficiency (FUE) was significantly superior in F1 (50% RDF) followed by F2 (75% RDF) over F3 (100% RDF). The results indicated that fertigation of water soluble fertilizers was more beneficial than soil application of conventional fertilizers. The findings also suggested that in water scarcity areas irrigation at 40 per cent ETc can be useful to attain marginal tomato yield.
Subject: Soil Science and Agriculture Chemistry
Theme: STUDIES ON IRRIGATION REGIMES AND FERTIGATION LEVELS ON SOIL PROPERTIES, YIELD AND QUALITY OF TOMATO (Solanum lycopersicum L.) UNDER GREENHOUSE
These Type: Ph.D
Issue Date: 2014-09
Appears in Collections:Thesis

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