Abstract
In this study, four different type seeders were evaluated for seed spacing, depth uniformity, and plant emergence at three forward speeds (3.6, 5.4, and 7.2 km h-1). The planter types were: no-till planter, precision vacuum planter, universal planter, and semi-automatic potato planter. The sowing uniformity of the horizontal distribution of seeds was described by using the multiple index, the miss index, the quality of feed index, and the precision in addition to the means and standard deviations of the sample methods. Uniformity of planting depth of seeds was described using the mean, standard deviation and the coefficient of variation of the sample methods. Plant emergence ratios were evaluated by mean emergence time, emergence rate indexes, and emergence percentage. The best seed spacing uniformity and seed emergence ratio were obtained with the no-till planter, and the best seed depth uniformity was obtained with the precision vacuum planter. Forward speed significantly affected only the mean emergence time (P < 0.05). As forward speed increased, mean emergence time decreased.
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Claims 3
Claim · model-written summary
The no-till planter gave the best seed spacing uniformity and seed emergence ratio among the planters compared.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- no-till plantere0
- Outcome
- seed spacing uniformity and seed emergence ratioe0
- Direction
- beste0
- Comparator
- precision vacuum planter, universal planter, and semi-automatic potato plantere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Various Planters on Emergence and Seed Distribution Uniformity of Sunflower”
e0“The best seed spacing uniformity and seed emergence ratio were obtained with the no-till planter”
e2“The planter types were: no-till planter, precision vacuum planter, universal planter, and semi-automatic potato planter”
Claim · model-written summary
The precision vacuum planter gave the best seed depth uniformity.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- precision vacuum plantere1
- Outcome
- seed depth uniformitye1
- Direction
- beste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Various Planters on Emergence and Seed Distribution Uniformity of Sunflower”
e1“the best seed depth uniformity was obtained with the precision vacuum planter”
Claim · model-written summary
Higher forward speed significantly decreased the mean emergence time of sunflower.
- Taxon
- SunflowerHelianthus annuust0
- Outcome
- mean emergence timee3
- Direction
- decreasede4
- Qualifier
- P < 0.05e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Various Planters on Emergence and Seed Distribution Uniformity of Sunflower”
e3“Forward speed significantly affected only the mean emergence time (P < 0.05)”
e4“As forward speed increased, mean emergence time decreased”
The same questions in other papers
tillage · growth · Helianthus annuus (common sunflower)Positive and negative results
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- negative
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See all 15 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.