Abstract
This investigation was carried out to study the effects of the different applied mineral, organic and natural alternative fertilizers levels supplemented with or without some bio-stimulants fertilizers on some vegetative growth measurements, nutritional status and some fruiting aspects parameters of “Washington navel” orange trees during the two consecutive seasons of 2022 and 2023. The obtained data revealed obviously that all treatments in this study resulted in a positive increase in all investigated vegetative growth measurements. Furthermore, all studied fertilization treatments significantly increased fruiting aspects parameters i.e., (fruit set %, tree yield either in kg or number of fruits per tree and yield as ton per feddan) whereas, decreased percentage of fruit drop during the two experimental seasons. Moreover, leaf nutrients composition of some macro elements (N, K, Ca and Mg) and micro nutrients (Fe, Mn and Zn) were improved generally from the standpoint of statistic by all investigated fertilization treatments, while leaf phosphorus (P) content did not responded from the standpoint of statistic to any fertilization treatments, since the response was completely absent and the differences were insignificant during the two seasons of study.Undoubtedly, it could be concluded that, all investigated fertilization treatments under study resulted in a significant and beneficial effects on most of parameters of Washington navel orange trees. However, the treatment of (100 % NPK as mineral, organic and natural alternative) combined with bio-fertilizers exhibited statistically the best and the most effective for increasing and improving both vegetative growth and fruiting aspects parameters and nutritional status
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Claims 9
Claim · model-written summary
All fertilizer treatments increased vegetative growth measurements.
- Taxon
- Washington Navel Oranget0
- Treatment
- all treatments in this studye0
- Outcome
- vegetative growth measurementse0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“all treatments in this study resulted in a positive increase in all investigated vegetative growth measurements”
t0“Washington Navel Orange”
Claim · model-written summary
Fertilization significantly increased fruit set.
- Taxon
- Washington Navel Oranget0
- Treatment
- all studied fertilization treatmentse0
- Outcome
- fruit set %e0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“all studied fertilization treatments significantly increased fruiting aspects parameters i.e., (fruit set %, tree yield either in kg or number of fruits per tree and yield as ton per feddan)”
t0“Washington Navel Orange”
Claim · model-written summary
Fertilization significantly increased tree yield in weight and fruit number.
- Taxon
- Washington Navel Oranget0
- Treatment
- all studied fertilization treatmentse0
- Outcome
- tree yield either in kg or number of fruits per treee0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“all studied fertilization treatments significantly increased fruiting aspects parameters i.e., (fruit set %, tree yield either in kg or number of fruits per tree and yield as ton per feddan)”
t0“Washington Navel Orange”
Claim · model-written summary
Fertilization significantly increased yield per feddan.
- Taxon
- Washington Navel Oranget0
- Treatment
- all studied fertilization treatmentse0
- Outcome
- yield as ton per feddane0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“all studied fertilization treatments significantly increased fruiting aspects parameters i.e., (fruit set %, tree yield either in kg or number of fruits per tree and yield as ton per feddan)”
t0“Washington Navel Orange”
Claim · model-written summary
Fertilization decreased fruit drop percentage.
- Taxon
- Washington Navel Oranget0
- Treatment
- all studied fertilization treatmentse1
- Outcome
- percentage of fruit drope0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“decreased percentage of fruit drop during the two experimental seasons”
e1“all studied fertilization treatments significantly increased fruiting aspects parameters”
t0“Washington Navel Orange”
Claim · model-written summary
Fertilization improved leaf N, K and Ca content.
- Taxon
- Washington Navel Oranget0
- Treatment
- all investigated fertilization treatmentse0
- Outcome
- leaf nutrients composition of some macro elements (N, K, Ca and Mg)e0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“leaf nutrients composition of some macro elements (N, K, Ca and Mg) and micro nutrients (Fe, Mn and Zn) were improved generally from the standpoint of statistic by all investigated fertilization treatments”
t0“Washington Navel Orange”
Claim · model-written summary
Fertilization improved leaf Fe, Mn and Zn content.
- Taxon
- Washington Navel Oranget0
- Treatment
- all investigated fertilization treatmentse0
- Outcome
- micro nutrients (Fe, Mn and Zn)e0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“micro nutrients (Fe, Mn and Zn) were improved generally from the standpoint of statistic by all investigated fertilization treatments”
t0“Washington Navel Orange”
Claim · model-written summary
Leaf phosphorus content did not respond significantly to fertilizer treatments.
- Taxon
- Washington Navel Oranget0
- Treatment
- any fertilization treatmentse0
- Outcome
- leaf phosphorus (P) contente0
- Direction
- response was completely absente0
Not reportedComparator
Verbatim
e0“leaf phosphorus (P) content did not responded from the standpoint of statistic to any fertilization treatments, since the response was completely absent and the differences were insignificant”
t0“Washington Navel Orange”
Claim · model-written summary
The 100% NPK combination with bio-fertilizers performed best for growth, fruiting and nutrition.
- Taxon
- Washington Navel Oranget0
- Treatment
- (100 % NPK as mineral, organic and natural alternative) combined with bio-fertilizerse0
- Outcome
- vegetative growth and fruiting aspects parameters and nutritional statuse0
- Direction
- the beste0
Not reportedComparator
Verbatim
e0“the treatment of (100 % NPK as mineral, organic and natural alternative) combined with bio-fertilizers exhibited statistically the best and the most effective for increasing and improving both vegetative growth and fruiting aspects parameters and nutritional status”
t0“Washington Navel Orange”
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