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Response of Mustard [brassica juncea (L) Crern. & Coss. ex coss.] to weed management practices and Nitrogen Levels and their Residual effect on succeeding summer green gram with and Without Nitogen

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Title Response of Mustard [brassica juncea (L) Crern. & Coss. ex coss.] to weed management practices and Nitrogen Levels and their Residual effect on succeeding summer green gram with and Without Nitogen
 
Creator Kaneria, B. B
 
Contributor Patel, Z. G
 
Subject null
 
Description Field iments were conducted on a vertisol of
Agricultural College Farm, Na ... sa.ri (Gujarat) during rabi
and Slfljl .. er seasons of the years 1989-90 and 1990-91, to
• •
study the response of mustard (L.) Caern.
-
" Coss. ex Coss.) to weed management practices and nitrogen
levels and their reSidual effect on succeeding green gram
with and without nitrogen.
The study involved ten weed manage_nt practices viz.,
application of pendimethal1n at 1.0 kg/ha (pre emergEnce)
alone and alongwith one hand weeding at 45 DAS, application
of alachlor at 1.0 kg/ha (pre U46l:gence) alone and
supplelbented with one hand weeding at 45 DAS, hand
weedings at 25 and 45 PAS. one intercultur1ng at 25 DAS • one hand weedin9 at 45 DAS. ODe iDterculturiog at 25 DAB
aloDgw1th ODe buDd weedin9 at 45 DAB. vee:! free condition
control as main plot and three levels of nitrogen
1.e •• 60. 75 and 90 kg/ha as s'm,plot treatments arranged 1n
split plot deSign each replicated thrice. After harvest of
musta.rd =op. the green gram was superimposed in sumhler vith
two levels of nitrogen i.e •• (10 nitrogeo aod 20 kg Nlha in
split-split plot design. l"he soil oi experimental area was
clayey in texture. low in total nitrogen. medium in available
phOsphOrus and fairJ.y r1ch in available potash wi th alkaline
reaction.
Various growth a~ yield attributing characters of
mustard were significantly affected due to different weea
management practices and nitrogen levelS. AlthOugh weed free
condition tended to give highest yields of seed (1495 kg/ha)
and stover (6804 kg/ha). cOUlpa.rable yields were obtained
•
with two hand weedings at 25 and 45 DAlI! aod pendimethalin
as pre emergence at 1.0 kg/ha alone or supplemented with
hand weeding at 45 DAS mainly due to e£fective control of
weed population aod weed biomass. LikeWise. highest yield
of seed (1274 kg/ha) and stover (5724 kg/ba) was obtained
with 90 kg N/ha. though 75 kg N/ha recorded allllOst simi] ar
values indicating better utilization of applied nitrogen.
Dry ~eight of ~~eds was also elevated upto the highest level
of nitrogen tried.
 
Date 2018-05-31T10:21:49Z
2018-05-31T10:21:49Z
1992-05
 
Type Thesis
 
Identifier BIHARILAL BHANJIBHAI KANERIA_28738
http://krishikosh.egranth.ac.in/handle/1/5810048356
 
Language en
 
Format application/pdf
 
Publisher Agronomy Department, N. M. College of Agriculture Gujarat Agricultural University