Abstract
The Bafra Plain (latitude 41 0 35' N; longitude 35 0 56' E) which located surrounding of Kizil Irmak delta in the northern Turkey, has a short plant growing season for spring sowings. However, the soils of the region (about 80 000 ha) may have an important soybean [ Glycin max (L.) Merr.] production potential with using the earliest or mid-earliest cultivars. Field experiments were conducted to determine the optimum sowing date of soybean, and effects of inoculation and sowing date on the yield and yield components. P-9292 soybean cultivar was evaluated either inoculated with Rhizobium japonicum or not inoculated at 3 sowing dates for 1991 and 1992 and 4 sowing dates for 1993 at Bafra, Samsun. The experimental design was a randomized block in a split plot with four replications. Both seed inoculation and early sowing increased seed yields for each year. With earliest sowings in 1991, 1992 and 1993 seed yields were obtained as 2728, 2786 and 2779 kg ha -1 , respectively which were 969, 614 and 887 kg ha -1 more than the latest sowings. Duration of periods between VE-R1, R1-R3 and VE-R8 were found more closely related with high yields than nodule number, plant height and 100-seed weight. Early-May to mid-May was the optimum sowing period of soybean for Bafra Plain.
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Claims 7
Claim · model-written summary
Seed inoculation increased soybean seed yields in each year.
- Taxon
- soybean
Glycine maxt0 - Treatment
- seed inoculatione0
- Interactor
- Rhizobium japonicumt1symbiont
- Outcome
- seed yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both seed inoculation and early sowing increased seed yields for each year.”
t0“soybean”
t1“Rhizobium japonicum”
Claim · model-written summary
Early sowing increased soybean seed yields in each year.
- Taxon
- soybeanGlycine maxt0
- Treatment
- early sowinge0
- Outcome
- seed yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both seed inoculation and early sowing increased seed yields for each year.”
t0“soybean”
Claim · model-written summary
Earliest 1991 sowing yielded 2728 kg ha -1, 969 kg ha -1 more than latest sowing.
- Taxon
- soybeanGlycine maxt0
- Treatment
- earliest sowings in 1991e0
- Outcome
- seed yieldse0
- Direction
- moree0
- Value
- 2728e0
- Qualifier
- 969e0
- Comparator
- latest sowingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With earliest sowings in 1991, 1992 and 1993 seed yields were obtained as 2728, 2786 and 2779 kg ha -1 , respectively which were 969, 614 and 887 kg ha -1 more than the latest sowings.”
t0“soybean”
Claim · model-written summary
Earliest 1992 sowing yielded 2786 kg ha -1, 614 kg ha -1 more than latest sowing.
- Taxon
- soybeanGlycine maxt0
- Treatment
- earliest sowingse0
- Outcome
- seed yieldse0
- Direction
- moree0
- Value
- 2786e0
- Qualifier
- 614e0
- Comparator
- latest sowingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With earliest sowings in 1991, 1992 and 1993 seed yields were obtained as 2728, 2786 and 2779 kg ha -1 , respectively which were 969, 614 and 887 kg ha -1 more than the latest sowings.”
t0“soybean”
Claim · model-written summary
Earliest 1993 sowing yielded 2779 kg ha -1, 887 kg ha -1 more than latest sowing.
- Taxon
- soybeanGlycine maxt0
- Treatment
- earliest sowingse0
- Outcome
- seed yieldse0
- Direction
- moree0
- Value
- 2779 kg ha -1e0
- Qualifier
- 887e0
- Comparator
- latest sowingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With earliest sowings in 1991, 1992 and 1993 seed yields were obtained as 2728, 2786 and 2779 kg ha -1 , respectively which were 969, 614 and 887 kg ha -1 more than the latest sowings.”
t0“soybean”
Claim · model-written summary
VE-R1, R1-R3 and VE-R8 durations related more closely to high soybean yield than nodule number, height or seed weight.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- VE-R1, R1-R3 and VE-R8e0
- Outcome
- high yieldse0
- Comparator
- nodule number, plant height and 100-seed weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Duration of periods between VE-R1, R1-R3 and VE-R8 were found more closely related with high yields than nodule number, plant height and 100-seed weight.”
t0“soybean”
Claim · model-written summary
Early-May to mid-May was recommended as the optimum soybean sowing period for Bafra Plain.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Early-May to mid-Maye0
- Outcome
- optimum sowing periode0
- Setting
- Bafra Plaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early-May to mid-May was the optimum sowing period of soybean for Bafra Plain.”
The same questions in other papers
sowing time · yield · Glycine max (soybean)Positive and negative results
114 papers in the same direction as this paper · 89 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- negative
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See all 207 papers →inoculation · yield · Glycine max (soybean)Positive and negative results
490 papers in the same direction as this paper · 63 in the opposite direction · 12 reporting no difference from an alternative
- no effect
- no effect
- no effect
562 papers more in this group
See all 566 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.