Abstract
Increasing the area of arable oilseed land, particularly rapeseed, and the important role of potassium in yield and oil content, especially in calcareous and high pH soils, need to more knowledge about plant nutrition requirement. In this study, the effect of sources and different levels of potassium fertilizers on some quality and quantity characteristics on canola yield were assessed by combined analysis factorial experiment based on randomized complete blocks design during 2011-2013. Two potassium fertilizer sources: potassium sulfate and potassium chloride with four levels of the potassium fertilizer control, 100, 150, 200 kg.ha-1 in main plot and sub plot, respectively. Results of combined analysis of variance showed effect of potassium sources on capsule in plant and oil yield was significant at 5% probability level. Also effect of potassium rate on capsule in plant, seed yield and oil content was significant at 5% and 1% probability level. Interaction effect of treatments on capsule in plant, seed yield, oil yield and oil content was significant. Potassium chloride fertilizer impact on yield and its components showed better results. Interaction effects of sources and rates of potassium showed the highest seed and oil yield (2128 and 878 kg.ha-1, respectively) from 100 kg.ha-1 potassium chloride treatment. Also the highest capsule in plant and seed in capsule obtained from 150 kg.ha-1 potassium chloride treatment. Finally, for increasing canola yield application of 100 kg.ha-1 potassium chloride recommended.
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Claims 9
Claim · model-written summary
Potassium chloride fertilizer showed better results for canola yield and its components.
- Taxon
- Brassica napus
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- Potassium chloride fertilizere1
- Outcome
- yield and its componentse1
- Direction
- bettere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e1“Potassium chloride fertilizer impact on yield and its components showed better results”
t0“Brassica napus”
Claim · model-written summary
The highest seed yield was obtained with 100 kg/ha potassium chloride (value 2128).
- Taxon
- Brassica napusBrassica napust0
- Treatment
- 100 kg.ha-1 potassium chloridee1
- Outcome
- seed and oil yielde1
- Direction
- higheste1
- Value
- 2128e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Interaction effects of sources and rates of potassium showed the highest seed and oil yield (2128 and 878 kg.ha-1, respectively) from 100 kg.ha-1 potassium chloride treatment”
t0“Brassica napus”
Claim · model-written summary
The highest oil yield was obtained with 100 kg/ha potassium chloride (value 878 kg/ha).
- Taxon
- Brassica napusBrassica napust0
- Treatment
- 100 kg.ha-1 potassium chloridee1
- Outcome
- seed and oil yielde1
- Direction
- higheste1
- Value
- 878 kg.ha-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Interaction effects of sources and rates of potassium showed the highest seed and oil yield (2128 and 878 kg.ha-1, respectively) from 100 kg.ha-1 potassium chloride treatment”
t0“Brassica napus”
Claim · model-written summary
The highest capsule number per plant and seed number per capsule were obtained with 150 kg/ha potassium chloride.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- 150 kg.ha-1 potassium chloridee1
- Outcome
- capsule in plant and seed in capsulee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Also the highest capsule in plant and seed in capsule obtained from 150 kg.ha-1 potassium chloride treatment”
t0“Brassica napus”
Claim · model-written summary
Potassium source had a significant effect on capsule number per plant and oil yield.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- potassium sourcese1
- Outcome
- capsule in plant and oil yielde1
- Qualifier
- 5% probability levele1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“effect of potassium sources on capsule in plant and oil yield was significant at 5% probability level”
t0“Brassica napus”
Claim · model-written summary
Potassium rate had a significant effect on capsule number per plant, seed yield and oil content.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- potassium ratee1
- Outcome
- capsule in plant, seed yield and oil contente1
- Qualifier
- 5% and 1% probability levele1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“effect of potassium rate on capsule in plant, seed yield and oil content was significant at 5% and 1% probability level”
t0“Brassica napus”
Claim · model-written summary
The interaction of treatments had a significant effect on capsule number per plant, seed yield and oil yield.
- Taxon
- Brassica napusBrassica napust0
- Outcome
- capsule in plant, seed yield, oil yielde1
- Qualifier
- Interaction effect of treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Interaction effect of treatments on capsule in plant, seed yield, oil yield and oil content was significant”
t0“Brassica napus”
Claim · model-written summary
The interaction of treatments had a significant effect on oil content.
- Taxon
- Brassica napusBrassica napust0
- Outcome
- oil contente1
- Qualifier
- Interaction effect of treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Interaction effect of treatments on capsule in plant, seed yield, oil yield and oil content was significant”
t0“Brassica napus”
Claim · model-written summary
Application of 100 kg/ha potassium chloride is recommended for increasing canola yield.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napuse1 - Treatment
- application of 100 kg.ha-1 potassium chloridee1
- Outcome
- increasing canola yielde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“for increasing canola yield application of 100 kg.ha-1 potassium chloride recommended”
The same questions in other papers
potassium chloride · quality: oil · Brassica napus (oilseed rape)Results agree
1 paper in the same direction as this paper
- positive
potassium chloride · yield · Brassica napus (oilseed rape)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →fertilization · yield · Brassica napus (oilseed rape)Positive and negative results
336 papers in the same direction as this paper · 37 in the opposite direction · 4 reporting no difference from an alternative
- negative
- no effect
- no effect
374 papers more in this group
See all 378 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.