Abstract
Two field experiments were carried out during the two successive winter seasons of 2013/2014and 2014/2015 in a private sector farm at Kafr Elsohbi Village, Qalubia Governorate, Egypt to investigate the effect of different levels of organic fertilizer (compost) at 35.7, 47.6 and 59.5 ton/ha. in presence of mineral and bio fertilizers and foliar spray with salicylic acid (SA) at 200 ppm, putrescine at 200 ppm, monopotassium phosphate at 2g/l and ascorbic acid at 200 ppm as well as their combinations on vegetative growth characters, chemical constituents, total yield and quality of potato (Solanum tuberosum L.) cv. Lady Rosetta during winter season. Obtained results showed that, fertilizing potato plants with compost at different used rates significantly increased all measured vegetative growth traits, chemical constituents of plant foliage, total produced tuber yield and its components, large and medium size tubers as well as chemical constituents of produced tubers. However, it decreased nitrate and total sugars percentage of produced tubers. Moreover, using the highest compost rate (59.5ton/ha.) exhibited the highest values in all aforementioned traits. Also, spraying potato plants four times starting one month from planting and every two weeks by interval with putrescine at 200 ppm and monopotassium phosphate at 2g/l reflected the highest values of vegetative growth aspects and chemical constituents of plant foliage as well as total produced tuber yield and its quality without significant differences among them compared with other tested growth stimulants and the control. In this respect, fertilizing potato plants grown under sandy loam conditions with compost at 59.5 ton/ha. combined with spraying the plants four times with either monopotassium phosphate at 2g/l or putrescine at 200ppm exhibited the highest values of total produced tuber yield and its components with best quality.
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Claims 10
Claim · model-written summary
Compost increased potato vegetative growth traits.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- compost at different used ratese0
- Outcome
- vegetative growth traitse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“fertilizing potato plants with compost at different used rates significantly increased all measured vegetative growth traits”
Claim · model-written summary
Compost increased potato foliage chemical constituents.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- compost at different used ratese0
- Outcome
- chemical constituents of plant foliagee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“fertilizing potato plants with compost at different used rates significantly increased all measured vegetative growth traits, chemical constituents of plant foliage”
Claim · model-written summary
Compost increased total potato tuber yield and its components.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- compost at different used ratese0
- Outcome
- total produced tuber yield and its componentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“fertilizing potato plants with compost at different used rates significantly increased all measured vegetative growth traits, chemical constituents of plant foliage, total produced tuber yield and its components”
Claim · model-written summary
Compost increased large and medium potato tubers.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- compost at different used ratese0
- Outcome
- large and medium size tuberse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“fertilizing potato plants with compost at different used rates significantly increased all measured vegetative growth traits, chemical constituents of plant foliage, total produced tuber yield and its components, large and medium size tubers”
Claim · model-written summary
Compost increased potato tuber chemical constituents.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- compost at different used ratese0
- Outcome
- chemical constituents of produced tuberse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“fertilizing potato plants with compost at different used rates significantly increased all measured vegetative growth traits, chemical constituents of plant foliage, total produced tuber yield and its components, large and medium size tubers as well as chemical constituents of produced tubers”
Claim · model-written summary
Compost decreased nitrate and total sugars percentage in potato tubers.
- Taxon
- POTATO
Solanum tuberosumt0 - Outcome
- nitrate and total sugars percentage of produced tuberse0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“However, it decreased nitrate and total sugars percentage of produced tubers.”
t0“POTATO PLANTS”
Claim · model-written summary
The highest compost rate gave the highest values in the reported potato traits.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- highest compost rate (59.5ton/ha.)e0
- Outcome
- all aforementioned traitse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“using the highest compost rate (59.5ton/ha.) exhibited the highest values in all aforementioned traits.”
t0“POTATO PLANTS”
Claim · model-written summary
Putrescine spray gave the highest potato growth, foliage chemistry, yield and quality values.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- putrescine at 200 ppme0
- Outcome
- vegetative growth aspects and chemical constituents of plant foliage as well as total produced tuber yield and its qualitye0
- Direction
- higheste0
- Comparator
- other tested growth stimulants and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“spraying potato plants four times starting one month from planting and every two weeks by interval with putrescine at 200 ppm and monopotassium phosphate at 2g/l reflected the highest values of vegetative growth aspects and chemical constituents of plant foliage as well as total produced tuber yield and its quality without significant differences among them compared with other tested growth stimulants and the control.”
Claim · model-written summary
Monopotassium phosphate spray gave the highest potato growth, foliage chemistry, yield and quality values.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- monopotassium phosphate at 2g/le0
- Outcome
- vegetative growth aspects and chemical constituents of plant foliage as well as total produced tuber yield and its qualitye0
- Direction
- higheste0
- Comparator
- other tested growth stimulants and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“spraying potato plants four times starting one month from planting and every two weeks by interval with putrescine at 200 ppm and monopotassium phosphate at 2g/l reflected the highest values of vegetative growth aspects and chemical constituents of plant foliage as well as total produced tuber yield and its quality without significant differences among them compared with other tested growth stimulants and the control.”
Claim · model-written summary
Compost at 59.5 ton/ha with monopotassium phosphate spray gave the highest potato tuber yield, components and quality.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- compost at 59.5 ton/ha. combined with spraying the plants four times with either monopotassium phosphate at 2g/l or putrescine at 200ppme0
- Outcome
- total produced tuber yield and its components with best qualitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“compost at 59.5 ton/ha. combined with spraying the plants four times with either monopotassium phosphate at 2g/l or putrescine at 200ppm exhibited the highest values of total produced tuber yield and its components with best quality.”
t0“POTATO PLANTS”
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