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Characteristics of soybean yield influenced by the application

of herbicides oxyfluorfen and pendimethalin

1
1,2
1
1
3
1
Hasanuddin , S Hafsah , E Hayati , E Nurahmi , U N Saputri , Manfarizah ,
and D S Aryani 4
1 Department of Agrotechnology, Faculty of Agriculture, Universitas Syiah Kuala,
Banda Aceh
2 Weed Management Laboratory, Dept. of Agrotechnology, Faculty of Agriculture,
Universitas Syiah Kuala, Banda Aceh
3 Department of Soil Science, Faculty of Agriculture, Universitas Syiah Kuala, Banda
Aceh
4 Department of Agroecotechnology, Faculty of Agriculture, Universitas
Malikussaleh, Aceh Utara

E-mail: dewi.sartika.aryani@unimal.ac.id

Abstract. Type and dose of herbicides are important factors affecting weed control efficacy on
soybean crop. This research was conducted to discover the effective doses of oxyfluorfen and
pendimethalin to control weeds, starting from May to August 2019 in Meunasah Manyang
Village, Krueng Barona Jaya District, Aceh Besar Regency, using Randomized Completely
Block Design (RCBD) Factorial. The first factor was type of herbicide: oxyfluorfen and
pendimethalin, and the second factor was dose of herbicide: 0, 0.5, 1, 1.5 and 2 kg ba.ha .
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Variables observed were weed dry weight, number of seeds per plant, weight of 100 seeds,
number of pods per plant and dry seed yield. The results showed that type of herbicide has
affected the weed dry weight, number of seeds per plant and number of pods per plant.
Oxyfluorfen has reduced weed dry weight but it increased the number of seeds per plant and
number of pods per plant. The application of different doses also affected weed dry weight,
number of pods per plant and weight of 100 seeds, where dose 1.5 kg ba.ha lowered weed dry
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weight but it has also improved the weight of 100 seeds. There was an interaction between type
and dose of herbicide on the number of pods per plant. It showed that the application of 1.5 kg
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ba.ha oxyfluorfen increased the number of pods per plant.

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