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Nitrogen Management in Rabi Sunflower (Helianthus annuus. L) in Relation to Different Tillage Practices Imposed during Kharif

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Title Nitrogen Management in Rabi Sunflower (Helianthus annuus. L) in Relation to Different Tillage Practices Imposed during Kharif
Not Available
 
Creator K. Sridhar,
M. Yakadri,
J.V.N.S. Prasad,
T. Ramesh
I.M. Sarawad,
V.V. Angadi,
M.B. Guled,
S.R. Mulla
Ch. Srinivasarao
P.K. Mishra
 
Subject deep black soil, kharif tillage, Nitrogen, rabi sunflower, sunnhemp incorporation,
 
Description Not Available
A field experiment was conducted during rabi 2011 at Research farm, Regional Agriculture Research Station
(RARS), Bijapur on a deep black soil under rainfed condition to study the effect of different tillage practices imposed
during kharif and different nitrogen sources on rabi sunflower growth and yield. Tillage practices had no significant effect
on growth and yield of sunflower crop. Yield components like number of seeds per head (1068.6) and seed weight per head
(55.1 g) were significantly higher with the minimum tillage while tillage practices did not show significant influence on
seed yield and stalk yield. Sunflower fertilized with 100% recommended dose of fertilizer (RDF) recorded significantly
higher germination percentage, plant height, number of leaves, leaf area index, dry matter production than rest of the
treatments. Yield attributes viz. head diameter (10.6 cm) and number of seeds per head (1174.8) were significantly higher
with 100% RDF (35:50:35 N: P2O5 : K2O kg ha -1 ) but on par with in- situ sunnhemp green manure incorporation @ 2.5 t ha
-1+ 50% recommended dose of nitrogen through urea and in -situ sunnhemp green manure incorporation @ 5 t ha -1. Seed
yield (1187 kg ha -1) and stalk yield (2484 kg ha -1) of sunflower were significantly higher with 100% RDF over farmers’
practice (24:30:0 N:P2O5:K2O kg ha -1) but was on par with rest of the treatments. Reducing the tillage intensity did not
significantly influence yields and substituting 50% nitrogen through organic sources produced yields comparable to that of
inorganic source of nitrogen application.
Not Available
 
Date 2020-02-26T09:18:31Z
2020-02-26T09:18:31Z
2012-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33388
 
Language English
 
Relation Not Available;
 
Publisher Not Available