Abstract
The purpose of this research is to investigate the effect of potassium fertilization source and dose on productivity and quality parameters of strawberry. The trial was conducted in 2016-2017 at the experimental greenhouse of Hassan II Institute of Agronomy and Veterinary Sciences in Rabat. Strawberry plants of the cultivar “San Andreas” were planted on November 6th in 12 liter pots equipped with a gravity fertigation system. The experimental design was a split-plot with eight treatment combinations of two potassium fertilizer sources: 1) Potassium Sulphate for the whole growing cycle (PS/PS); 2) Potassium Nitrate during the vegetative period and Potassium Sulfate during the fruit production period (PN/PS) and four potassium fertilizer doses: 100, 200, 300 and 400 kg/ha of K2O replicated thrice. Potassium sulfate source was superior to potassium nitrate on the improvement of productivity and quality parameters of strawberry fruit. Potassium sulphate improved the number of flowers by 16%, fruit production by 21%, sugar content by 3%, and titrable acidity content by 0.5 g/L. The highest yield was recorded in plants receiving 300 kg/ha K2O as potassium sulphate. The 300 kg K2O/ha dose gave also superior results regarding quality parameters of strawberry fruit. This optimum potassium dose enhanced number of flowers by 35%, fruits produced by 44%, sugar content by 25% and titrable acidity content by 0.9 g/L.
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Claims 10
Claim · model-written summary
Potassium sulphate increased flower number by 16%.
- Taxon
- Strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- Potassium sulphatee0
- Outcome
- number of flowerse0
- Direction
- improvede0
- Value
- 16%e0
- Comparator
- Potassium Nitratee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Potassium sulphate improved the number of flowers by 16%”
t0“Potassium Source and Dose on Yield and Quality of Strawberry Fruit”
e1“Potassium Nitrate during the vegetative period and Potassium Sulfate during the fruit production period”
Claim · model-written summary
Potassium sulphate increased fruit production by 21%.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Potassium Sulphatee1
- Outcome
- fruit productione0
- Value
- 21%e0
- Comparator
- Potassium Nitratee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit production by 21%”
t0“Effect of Potassium Source and Dose on Yield and Quality of Strawberry Fruit”
e1“Potassium Sulphate for the whole growing cycle (PS/PS); 2) Potassium Nitrate”
Claim · model-written summary
Potassium sulphate increased sugar content by 3%.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Potassium Sulphatee1
- Outcome
- sugar contente0
- Value
- 3%e0
- Comparator
- Potassium Nitratee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sugar content by 3%”
t0“Effect of Potassium Source and Dose on Yield and Quality of Strawberry Fruit”
e1“Potassium Sulphate for the whole growing cycle (PS/PS); 2) Potassium Nitrate”
Claim · model-written summary
Potassium sulphate increased titrable acidity by 0.5 g/L.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Potassium Sulphatee1
- Outcome
- titrable acidity contente0
- Value
- 0.5 g/Le0
- Comparator
- Potassium Nitratee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“titrable acidity content by 0.5 g/L”
t0“Effect of Potassium Source and Dose on Yield and Quality of Strawberry Fruit”
e1“Potassium Sulphate for the whole growing cycle (PS/PS); 2) Potassium Nitrate”
Claim · model-written summary
Yield was highest at 300 kg/ha K2O as potassium sulphate.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- 300 kg/ha K2O as potassium sulphatee0
- Outcome
- yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield was recorded in plants receiving 300 kg/ha K2O as potassium sulphate.”
t0“Strawberry Fruit”
Claim · model-written summary
The 300 kg K2O/ha dose gave superior fruit quality parameters.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- 300 kg K2O/ha dosee0
- Outcome
- quality parameters of strawberry fruite0
- Direction
- superiore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 300 kg K2O/ha dose gave also superior results regarding quality parameters of strawberry fruit.”
Claim · model-written summary
The optimum potassium dose increased flower number by 35%.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- optimum potassium dosee0
- Outcome
- number of flowerse0
- Direction
- enhancede0
- Value
- 35%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This optimum potassium dose enhanced number of flowers by 35%”
t0“Strawberry Fruit”
Claim · model-written summary
The optimum potassium dose increased fruits produced by 44%.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Potassiumt0
- Outcome
- fruits producede0
- Value
- 44%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits produced by 44%”
t0“Potassium Source and Dose on Yield and Quality of Strawberry Fruit”
Claim · model-written summary
The optimum potassium dose increased sugar content by 25%.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Potassiumt0
- Outcome
- sugar contente0
- Value
- 25%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sugar content by 25%”
t0“Potassium Source and Dose on Yield and Quality of Strawberry Fruit”
Claim · model-written summary
The optimum potassium dose increased titrable acidity by 0.9 g/L.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Potassiumt0
- Outcome
- titrable acidity contente0
- Value
- 0.9 g/Le0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“titrable acidity content by 0.9 g/L”
t0“Potassium Source and Dose on Yield and Quality of Strawberry Fruit”
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