Abstract
The objective of this study is to investigate the influence of different K sources (KCl and K2SO4) on sunflower yield. For this purpose, a randomized block experimental design with K2SO4 and KCl sources was established in the greenhouse. The treatments were consisted of 0 (standard), 50, 100, 150 and 200 kg/ha fertilizers each with four replicates. After development, plants were harvested. The heights and weights of each plant was obtained and dried in the oven. The potassium content of each plant was measured, using flame photometer apparatus. The obtained results indicated that by increasing potassium concentration in soil, its accumulation in plant tissues was also increased. So that the best yield was in 200Kg/ha level of K2SO4 treatment and the lowest yield was in the 50Kg/ha of the KCl treatment. Also, the sulphur content increased with increasing of K2SO4 fertilizer. This study may help the integrated nutrient management for oil seed crops especially the sunflower. Keywords: Crop yield, Fertilizer, K2SO4, KCl, Plant nutrient, Sunflower, Soil fertility.
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Claims 4
Claim · model-written summary
Increasing soil potassium increased accumulation in sunflower tissues.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- increasing potassium concentration in soile0
- Outcome
- accumulation in plant tissuese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower (Helianthus annus)”
e0“by increasing potassium concentration in soil, its accumulation in plant tissues was also increased”
Claim · model-written summary
Sunflower yield was highest with 200Kg/ha K2SO4.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 200Kg/ha level of K2SO4 treatmente0
- Outcome
- yielde0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower (Helianthus annus)”
e0“the best yield was in 200Kg/ha level of K2SO4 treatment”
Claim · model-written summary
Sunflower yield was lowest with 50Kg/ha KCl.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 50Kg/ha of the KCl treatmente0
- Outcome
- yielde0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower (Helianthus annus)”
e0“the lowest yield was in the 50Kg/ha of the KCl treatment”
Claim · model-written summary
Sulphur content increased with increasing K2SO4 fertilizer.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- increasing of K2SO4 fertilizere0
- Outcome
- sulphur contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower (Helianthus annus)”
e0“the sulphur content increased with increasing of K2SO4 fertilizer”
The same questions in other papers
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potassium sulfate · yield · Helianthus annuus (common sunflower)Results agree
4 papers in the same direction as this paper
- positive
- positive
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1 paper more in this group
See all 5 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.