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Performance of Maize Hybrids to Varying Fertilizer Levels in Northern Transitional Zone of Karnataka

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Title Performance of Maize Hybrids to Varying Fertilizer Levels in Northern Transitional Zone of Karnataka
 
Creator Abel Daikho
 
Contributor U.K. Hulihalli
 
Subject Agronomy
 
Description A field experiment was conducted at Main Agricultural Research Station, University
of Agricultural Sciences, Dharwad on deep black soil during kharif 2012 under rainfed
condition to study the ?Performance of maize hybrids to varying fertilizer levels in Northern
Transitional Zone of Karnataka?. The experiment included ten maize hybrids (CP-818, NK-
6240, 900 M Gold, Kaveri-25-K-55, Pinacle, 30B07, Bioseed-9681, PAC-740, Hema and
Arjun) and two fertility levels 100% recommended dose of fertilizer (RDF) (100: 50: 25 N P
K kg ha-1) and 150% RDF (150: 75: 37.5 N P K kg ha-1). The trial was laid out in randomized
completely block design with factorial concept and replicated thrice.
Among maize hybrids 900 M Gold and NK-6240 were found superior and recorded
significantly higher grain yield (64.6 and 62.0 q ha-1, respectively) followed by CP-818, PAC-
740 and 30B07 (59.3, 57.8 and 54.7 q ha-1, respectively) compared to other hybrids.
Significantly lower grain yield was recorded with the hybrids Arjun and Hema (38.2 and 39.2
q ha-1, respectively). The growth and yield components such as total dry matter production
plant-1, cob length, cob girth, number of grains cob-1 and 100 grain weight were higher with a
900 M Gold, NK-6240, CP-818, PAC-740 and 30B07 as compared to other hybrids.
Application of 150 per cent RDF recorded significantly higher grain yield of maize
(52.7 q ha-1) over 100 per cent RDF (50.4 q ha-1). The increase in maize grain yield with 150
per cent RDF was to the tune of 4.5 per cent over 100 per cent RDF. This was attributed to
higher growth and yield attributes with 150 per cent RDF over 100 per cent RDF.
The economic analysis indicated higher net returns and B: C ratio with 900 M Gold
and NK-6240 compared to other hybrids. However, the fertility levels did not influence
significantly the net returns and B:C ratio.
 
Date 2016-11-22T13:14:22Z
2016-11-22T13:14:22Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/86948
 
Format application/pdf
 
Publisher UAS, Dharwad