Effect of sequential application of herbicides on weed control and yield of Kinnow
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Date
2017
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CCSHAU
Abstract
The experiment entitled “Effect of sequential application of herbicides on weed control and
yield of Kinnow” was conducted at Research Farm of the Department of Horticulture, CCS
Haryana Agricultural University, Hisar during the year 2016 to find out the suitable herbicides
and repeated application of herbicide mixture on weed control and nutrient content in plants as
well as improvement in yield and quality of kinnow. The treatments comprising 13 levels of
herbicides and their combination and nine levels of repeated application of herbicide mixtures
were laid out in a randomized block design with three replications keeping a net plot size of 6.0
x 6.0 m separately. The data were recorded on various parameters,, which were influenced
significantly by different levels of treatments.
In repeated application of herbicide mixture, soil physico -chemical properties and
nutrient status was not much changed during the time frame while, glyphosate +pendimethalin (1%
+ 1kg/ha) spray in April, June, August and October found best for all other parameters viz.,. yield,
quality and weed parameters but it was costly and glyphosate +pendimethalin (1% + 1kg/ha) spray in
April, June and August proves to be equally effective in yield and quality characters. Thus
sprayof glyphosate +pendimethalin (1% + 1kg/ha) in April, June and August is best and economical for
higher yield with quality fruit production at commercial scale.
In efficacy of different herbicides, soil physico -chemical properties and nutrient status
was not much changed during the time frame. However, mechanical weeding after 30, 60 and
90 DAT treatment found best for all other parameters viz.,. yield, quality and weed parameters
while, in herbicidal treatments, pendimethalin + glyphosate (1 kg/ha + 1%) recorded best for the
same. Mechanical weeding after 30, 60 and 90 DAT treatments gave the best results but it was
very costly and herbicidal combination of pendimethalin + glyphosate (1 kg/ha + 1%) resulted
almost similar to mechanical weeding treatment. Pendimethalin + glyphosate (1 kg/ha + 1%) found
best and economical combination for commercial production of Kinnow with quality fruits
under semi arid condition of Hisar (Haryana).
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