Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)

Abstract. During 2013 – 2015 on pellic vertisol soil type was conducted a field experiment. Under investigation was Bulgarian milk thistle cultivar Silmar (Silybum marianum Gaertn.). Factor A included the years of investigation. Factor B included no treated check, 6 soil-applied herbicides – Tendar...

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Main Author: G. Delchev
Format: Article
Language:English
Published: Trakia University. Faculty of Agriculture, Stara Zagora 2016-06-01
Series:Agricultural Science and Technology
Subjects:
Online Access:http://agriscitech.eu/wp-content/uploads/2016/06/6.pdf
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author G. Delchev
author_facet G. Delchev
author_sort G. Delchev
collection DOAJ
description Abstract. During 2013 – 2015 on pellic vertisol soil type was conducted a field experiment. Under investigation was Bulgarian milk thistle cultivar Silmar (Silybum marianum Gaertn.). Factor A included the years of investigation. Factor B included no treated check, 6 soil-applied herbicides – Tendar EC, Sharpen 33 EC, Merlin flex 480 SC, Smerch 24 ЕC, Raft 400 SC, Eagle 75 DF and 5 foliar-applied herbicides – Kalin flo, Eclipse 70 DWG, Sultan 500 SC, Granstar super 50 SG, Starane 250 EK. Factor C included no treated check and 1 antigraminaceous herbicide – Tiger platinium 5 EC. All herbicides, herbicide combinations and herbicide tank-mixtures were applied in a working solution of 200 l/ha. Mixing of foliar-applied herbicides was done in the tank on the sprayer. Soil-applied herbicides were treated during the period after sowing before emergence. Foliar-applied herbicides were treated during rosette stage of the milk thistle. Tank mixtures of antigraminaceous herbicide Tiger platinum with foliar herbicides Kalin flo, Eclipse, Sultan, Granstar super and Starane leads to obtaining high seed yields of milk thistle. High yields seeds are also obtained by foliar treatment with Tiger platinum after soil-applied herbicides Raft, Sharpen and Eagle. The use of the soil-applied herbicides Smerch, Merlin flex and Tendar does not increase the seed yield due to its higher phytotoxicity against milk thistle. Herbicide Tendar and herbicide combination Tendar + Tiger platinum are the most unstable, followed by herbicide Merlin flex. Herbicide tank-mixtures Kalin flo + Tiger platinum and Eclipse + Tiger platinum and herbicide combination Raft + Tiger platinum are technologically the most valuable. They combine high seed yield with high stability with relation to different years. Single application of soil-applied or foliar-applied herbicides have low estimate; due to that they must be combined for full control of weeds in milk thistle crops.
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spelling doaj.art-df591cec71bb46db974324688f9cfa702022-12-21T20:00:00ZengTrakia University. Faculty of Agriculture, Stara ZagoraAgricultural Science and Technology1313-88201314-412X2016-06-018212713110.15547/ast.2016.02.022Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)G. DelchevAbstract. During 2013 – 2015 on pellic vertisol soil type was conducted a field experiment. Under investigation was Bulgarian milk thistle cultivar Silmar (Silybum marianum Gaertn.). Factor A included the years of investigation. Factor B included no treated check, 6 soil-applied herbicides – Tendar EC, Sharpen 33 EC, Merlin flex 480 SC, Smerch 24 ЕC, Raft 400 SC, Eagle 75 DF and 5 foliar-applied herbicides – Kalin flo, Eclipse 70 DWG, Sultan 500 SC, Granstar super 50 SG, Starane 250 EK. Factor C included no treated check and 1 antigraminaceous herbicide – Tiger platinium 5 EC. All herbicides, herbicide combinations and herbicide tank-mixtures were applied in a working solution of 200 l/ha. Mixing of foliar-applied herbicides was done in the tank on the sprayer. Soil-applied herbicides were treated during the period after sowing before emergence. Foliar-applied herbicides were treated during rosette stage of the milk thistle. Tank mixtures of antigraminaceous herbicide Tiger platinum with foliar herbicides Kalin flo, Eclipse, Sultan, Granstar super and Starane leads to obtaining high seed yields of milk thistle. High yields seeds are also obtained by foliar treatment with Tiger platinum after soil-applied herbicides Raft, Sharpen and Eagle. The use of the soil-applied herbicides Smerch, Merlin flex and Tendar does not increase the seed yield due to its higher phytotoxicity against milk thistle. Herbicide Tendar and herbicide combination Tendar + Tiger platinum are the most unstable, followed by herbicide Merlin flex. Herbicide tank-mixtures Kalin flo + Tiger platinum and Eclipse + Tiger platinum and herbicide combination Raft + Tiger platinum are technologically the most valuable. They combine high seed yield with high stability with relation to different years. Single application of soil-applied or foliar-applied herbicides have low estimate; due to that they must be combined for full control of weeds in milk thistle crops.http://agriscitech.eu/wp-content/uploads/2016/06/6.pdfmilk thistleherbicidesherbicide combinationsseed yieldselectivitystability
spellingShingle G. Delchev
Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)
Agricultural Science and Technology
milk thistle
herbicides
herbicide combinations
seed yield
selectivity
stability
title Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)
title_full Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)
title_fullStr Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)
title_full_unstemmed Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)
title_short Selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops II. Effect at milk thistle (Silybum Marianum Gaertn.)
title_sort selectivity and stability of new herbicides and herbicide combinations for the seed yields of some field crops ii effect at milk thistle silybum marianum gaertn
topic milk thistle
herbicides
herbicide combinations
seed yield
selectivity
stability
url http://agriscitech.eu/wp-content/uploads/2016/06/6.pdf
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