Record Details

Response of cotton (Gossypium hirsuhrm) to split application of nitrogen and weed control methods

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Response of cotton (Gossypium hirsuhrm) to split application of nitrogen and weed control methods
 
Creator ANJUM, F H
TANVEER, A
AHMAD, R
ALI, A
NADEEM, M A
TAHIR, M
 
Subject Crop production; Cotton; Nitrogen; S-metolachlor; Hoeing; Trianthema
 
Description Field experiments were conducted during 1999-2000 and 2000-01 in a split plot design to study the effect of split application of nitrogen and weed control strategies on weeds, growth and yield of cotton (Gos~ypiumhi rsutunl L.). The 3 N applications, namely 25% at sowing + 50% at squaring and 25% at flowering; 25% at sowing + 25% at first inigation and 50% at flowering; 15% at sowing + 15% at first irrigation + 35% at squaring and 35% at flowering. Six weed control methods included 2 manual hoeings at 3 and 6 weeks after sowing, 1 hoeing at 3 weeks and 1 earthing-up at 6 weeks, Smetolachlor ( 2.4 kg a.i./ha as pre-plant), S-metolachlor (2.4 kg ailha as pre-plant) + 1 hoeing at 6 weeks, S-metolachlor (2.4 kg a.i.ha as pre-plant) + 1 earthing-up at 6 weeks and weedy check (control). Dry weight of weeds was significantly minimum (81.18 g/m2) with 15% N at sowing + 15% at first irrigation + 35% at squaring and 35% at flowering. Different weed-control methods generally resulted in low dry weight of weeds than the weedy check and consequently plants had more leaf area index. Total bolls producedlplant (19.5 1-30.59), average boll weight (2.36-2.63 g) and ginning outturn (39.75-40.80%) was significantly more in weed-control methods than the weedy check. Two hoeings at 3 and 6 week resulted in maximum seed-cotton yield (2 160.5 kgha) and lint yield (889.7 kgha). This treatment gave a maximum of 87% increase in seed cotton yield over weedy check. Seed cotton yield, ginning outturn and lint yield were not influenced by split nitrogen application.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor icar
 
Date 2011-01-10
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/3240
 
Source The Indian Journal of Agricultural Sciences; Vol 77, No 4 (2007)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/3240/1290
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences