Abstract
Goal. To establish the optimally high efficiency of weed control in soybean crops with a two-time application of the herbicide Harmony 75, VG to relieve stress in crop plants. Methods. Field, laboratory, quantitative-weighing, visual, calculation-comparative, mathematical-statistical. Results. It was established that a one-time spraying of crops with the herbicide Harmony 75, VG with the maximum consumption rate from the recommended (8.0 g/ ha) could be one of the factors that induced stress in soybean plants, delaying the intensity of photosynthesis and partially inhibiting other physiological processes (chlorophyll content a and b 5 days after spraying decreased (0.8 g/ dm2) compared to the data obtained before spraying (0.9 g/ dm2)). Research has established that two-time spraying of crops with the herbicide Harmony 75, VG at a rate of 5.0 g/ ha, the first — during the phase of the first triple leaf in soybean plants, the second — on the 4th day after the first, with observance of the time interval, ensured seedling control weeds and restrained the formation of vegetative mass, the average indicator of which was significantly lower compared to the average indicator established in the plots of the control version of the experiment, and was 15.7% of it. According to the results of the research, the average seed yield was the closest in value to the average yield of soybean seeds, which was obtained in the control plots of crops, where 4 consecutive manual weeding of crops was carried out during the growing season and the segetal vegetation was completely destroyed (3.31 t/ ha or 91.2%), recorded on the plots of crops with a two-time treatment of Harmony 75, VG with a rate of consumption of 5.0 g/ ha + 200 ml/ ha of PAR Trend 90 (the first treatment during the phase of the first triple leaf in soybean plants, the second treatment at 4 — that day after one). Conclusions. Two-time spraying with the herbicide Harmony 75, VG, with a rate of consumption of 5.0 g/ ha + 200 ml/ ha of surfactant Trend 90 (the first time — during the phase of the first triple leaf in soybean plants and the second time — on the 4th day after the first) makes it possible to control the emergence of weeds, restrain the formation of vegetative mass, causes reduced stress in crop plants compared to a one-time introduction of the recommended rate, and ensures a higher yield of soybean seeds.
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Claims 7
Claim · model-written summary
A one-time spraying at the maximum recommended rate could have induced stress in soybean plants.
- Taxon
- soybean plants
Glycine maxt0 - Treatment
- one-time spraying of crops with the herbicide Harmony 75, VG with the maximum consumption rate from the recommended (8.0 g/ ha)e1
- Outcome
- stress in soybean plantse1
- Direction
- inducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the level of stress in soybean plants”
e1“a one-time spraying of crops with the herbicide Harmony 75, VG with the maximum consumption rate from the recommended (8.0 g/ ha) could be one of the factors that induced stress in soybean plants”
Claim · model-written summary
Chlorophyll a and b content decreased 5 days after the one-time spraying compared with before spraying.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- one-time spraying of crops with the herbicide Harmony 75, VG with the maximum consumption rate from the recommended (8.0 g/ ha)e2
- Outcome
- chlorophyll content a and be1
- Direction
- decreasede1
- Value
- 0.8 g/ dm2e1
- Comparator
- data obtained before sprayinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the level of stress in soybean plants”
e1“chlorophyll content a and b 5 days after spraying decreased (0.8 g/ dm2) compared to the data obtained before spraying (0.9 g/ dm2)”
e2“a one-time spraying of crops with the herbicide Harmony 75, VG with the maximum consumption rate from the recommended (8.0 g/ ha)”
Claim · model-written summary
Two-time spraying at 5.0 g/ ha ensured control of seedling weeds in soybean.
- Taxon
- soybean plantsGlycine maxe1
- Treatment
- two-time spraying of crops with the herbicide Harmony 75, VG at a rate of 5.0 g/ hae1
- Interactor
- weedse1weed
- Outcome
- seedling control weedse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the level of stress in soybean plants”
e1“two-time spraying of crops with the herbicide Harmony 75, VG at a rate of 5.0 g/ ha, the first — during the phase of the first triple leaf in soybean plants, the second — on the 4th day after the first, with observance of the time interval, ensured seedling control weeds”
Claim · model-written summary
Two-time spraying at 5.0 g/ ha significantly lowered weed vegetative mass compared with the control version.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- two-time spraying of crops with the herbicide Harmony 75, VG at a rate of 5.0 g/ hae2
- Outcome
- formation of vegetative masse1
- Direction
- lowere1
- Value
- 15.7%e1
- Comparator
- control version of the experimente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the level of stress in soybean plants”
e1“restrained the formation of vegetative mass, the average indicator of which was significantly lower compared to the average indicator established in the plots of the control version of the experiment, and was 15.7% of it”
e2“two-time spraying of crops with the herbicide Harmony 75, VG at a rate of 5.0 g/ ha”
Claim · model-written summary
Average seed yield under two-time spraying with PAR Trend 90 was closest to the manually weeded control yield.
- Taxon
- soybeanGlycine maxe1
- Treatment
- two-time treatment of Harmony 75, VG with a rate of consumption of 5.0 g/ ha + 200 ml/ ha of PAR Trend 90e2
- Outcome
- average seed yielde1
- Direction
- closeste1
- Value
- 3.31 t/ ha or 91.2%e1
- Comparator
- control plots of crops, where 4 consecutive manual weeding of crops was carried oute1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the average seed yield was the closest in value to the average yield of soybean seeds, which was obtained in the control plots of crops, where 4 consecutive manual weeding of crops was carried out during the growing season and the segetal vegetation was completely destroyed (3.31 t/ ha or 91.2%)”
e2“recorded on the plots of crops with a two-time treatment of Harmony 75, VG with a rate of consumption of 5.0 g/ ha + 200 ml/ ha of PAR Trend 90”
Claim · model-written summary
Two-time spraying causes reduced stress in soybean compared with a one-time application at the recommended rate.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- Two-time spraying with the herbicide Harmony 75, VGe2
- Outcome
- stress in crop plantse1
- Direction
- reducede1
- Comparator
- one-time introduction of the recommended ratee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the level of stress in soybean plants”
e1“causes reduced stress in crop plants compared to a one-time introduction of the recommended rate”
e2“Two-time spraying with the herbicide Harmony 75, VG, with a rate of consumption of 5.0 g/ ha + 200 ml/ ha of surfactant Trend 90”
Claim · model-written summary
Two-time spraying ensures a higher yield of soybean seeds.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Two-time spraying with the herbicide Harmony 75, VGe2
- Outcome
- yield of soybean seedse1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“ensures a higher yield of soybean seeds”
e2“Two-time spraying with the herbicide Harmony 75, VG, with a rate of consumption of 5.0 g/ ha + 200 ml/ ha of surfactant Trend 90”
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