Record Details

Effect of planting pattern and straw management on herbicide persistence, productivity and quality of wheat (Triticum aestivum L.) and onion (Allium cepa L.)

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Effect of planting pattern and straw management on herbicide persistence, productivity and quality of wheat (Triticum aestivum L.) and onion (Allium cepa L.)
 
Creator Mandeep Kaur
 
Subject Unable to Generate Tags 0-abstract.doc
 
Description The field experiment on “Effect of planting pattern and straw management on herbicide persistence, productivity and quality of wheat (Triticum aestivum L.) and onion (Allium cepa L.)” was conducted at the experimental field of PAU, Ludhiana during rabi seasons of 2006-07 and 2007-08. The studies reveal that growth and development of P. minor were slightly reduced under Happy Seeder sown crop and zero till sowing in standing stubbles than bed sowing, zero tillage after burning and conventional tillage after partial burning. Growth parameters, yield attributes and grain yield of wheat were not significantly influenced by different planting patterns. Conventional tillage and bed sowing treatments slightly improved the physical properties of soil. Application of sulfosulfuron 25 g ha-1 , mesosulfuron + iodosulfuron 12 g ha-1 and pinoxaden 50 g ha-1 significantly reduced the growth and development of P. minor and hence significantly increased grain yield of wheat than unweeded (control). Hectolitre weight, sedimentation value and protein content of wheat grain under different planting patterns were non-significant. Hectolitre weight and sedimentation value were significantly higher in herbicidal treatments than control. Residues of sulfosulfuron 25 g ha-1 , mesosulfuron + iodosulfuron 12 g ha-1 and pinoxaden 50 g ha-1 were detected at 1 day after spray in soil at depth 0-15 cm but residues of herbicides were not detected in soil at other observational periods and in grain and straw at harvest. The highest microbial population was observed under zero till sowing with Happy Seeder followed by zero till sowing in standing stubbles among planting patterns and in unsprayed plots among weed control treatments at all observational period. There was decrease in viable microbial counts at 15 days after spray and further the microbial population started to regain.
The bulb yield of onion crop was not significantly influenced with planting patterns and rice straw incorporation levels. However, onion transplanted after rice straw incorporation yielded higher in flat sowing followed by bed sowing techniques. During both the years, application of oxyfluorfen 0.225 kg ha-1 recorded the maximum bulb diameter (60, 90 DAT and at uprooting time) which was statistically at par with pendimethalin 0.75 kg ha-1 and two hand weedings and these treatments were found to be significantly better than fluchloralin 1.125 kg ha-1 and unweeded (control). Application of oxyfluorfen 0.225 kg ha-1 gave the highest bulb yield which was statistically at par with pendimethalin 0.75 kg ha-1 and two hand weedings. These treatments proved significantly better than fluchloralin 1.125 kg ha-1 and unweeded (control) treatment. Also, bulb yield produced by fluchloralin 1.125 kg ha-1 was significantly better than unweeded (control). Soil samples of oxyfluorfen 0.225 kg ha-1, pendimethalin 0.75 kg ha-1 and fluchloralin 1.125 kg ha-1 treated plots taken 1 day after spray showed residues of respective herbicides. Samples of onion bulbs at 30, 60, 90 days after spray and at uprooting stage showed no residues of applied herbicides. The highest microbial population was observed under flat and bed sowing after rice straw incorporation treatments and unsprayed plots among weed control treatments at all observational period. There was decrease in viable microbial counts at 15 days after spray as compared to that at 0 day after spray and further the microbial poatiopuln started to regain.
 
Date 2017-01-04T13:59:40Z
2017-01-04T13:59:40Z
2009
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/94438
 
Language en
 
Format application/msword
application/msword
application/msword
application/msword
application/msword
 
Publisher PUNJAB AGRICULTURAL UNIVERSITY