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- Title
EFFICACY OF HERBICIDES, HERBICIDE COMBINATIONS AND HERBICIDE TANK MIXTURES ON WINTER FORAGE PEA (PISUM SATIVUM L.).
- Authors
DELCHEV, G.; BARAKOVA, Teodora
- Abstract
The research was conducted during 2015 - 2017 on pellic vertisol soil type. Under investigation was Bulgarian winter forage pea cultivar Mir (Pisum sativum var. arvense). Factor A included untreated control and 2 soil-applied herbicides - Dual gold 960 EC, Stomp aqua. Factor B included untreated control, 5 foliar-applied herbicides - Basagran 480 CL, Pulsar 40, Korum, Zencor 70 WG, Maton 600 EK and 2 herbicide tank mixtures - Zencor 70 + Targa super 5 EC, Maton 600 EK + Targa super 5 EC. Soil-applied herbicides were treated during the period after sowing before emergence. Foliar-applied herbicides were treated during 2 - 3 real leaf stage of the pea. Foliar-applied herbicides Pulsar and Korum destroy completely all annual and perennial broadleaved and graminaceous weeds and self-sown plants in winter forage pea crops. Combinations of soil-applied herbicides Dual gold and Stomp aqua with foliar-applied herbicides Basagran, Pulsar, Korum, Zencor and Maton, as well as with herbicide tank mixtures Zencor + Targa super and Maton + Targa super exhibit an additive effect on herbicidal efficacy. Treatment with foliar-applied herbicide Maton leads to high phytotoxicity in pea - rate 3 according to the scale of EWRS. Herbicide tank-mixture Maton + Targa super leads to even higher phytotoxicity in pea - rate 5 according to the scale of EWRS. Foliar-applied herbicide Zencor and herbicide tank-mixture Zencor + Targa super also leads to phytotoxicity in pea - rate 2 according to the scale of EWRS. The highest yields of winter forage pea seeds are obtained by treatment with foliar-applied herbicide Korum after soil-applied herbicides Stomp aqua and Dual gold. High yields are obtained also by treatment with foliar-applied herbicide Pulsar after soil-applied herbicides Stomp aqua and Dual gold, as well as by foliar treatment with herbicide tank-mixture Zencor + Targa super after soil-applied herbicides Stomp aqua and Dual gold.
- Subjects
VERTISOLS; PEA yields; BULGARIANS; HERBICIDES; EFFECT of herbicides on plants
- Publication
Research Journal of Agricultural Science, 2018, Vol 50, Issue 1, p71
- ISSN
2066-1843
- Publication type
Article