Abstract
This study was carried out during the seasons of 2014, 2015 on Washington navel orange (Citrus sinensis L. Osbeck) cultivated in a commercial orchard located in Shiwah Valley near Aga city, Dakahleia Governorate, Egypt. to study the effect of organic fertilization such as humic and Fulvic acid as a soil application on fruit set, dropping and yield of Washington navel orange . The data reveal that adding humic or fulvic acid each alone or together significantly increased the fruit set percentage but reduced pre-harvest drop than the control. The data also, showed that adding humic acid at 30 ml with fulvic acid at 100 ml significantly increased the number of fruit per trees than the other treatments or the control since, this treatment gave a higher yield. Whereas no clear effect had obtained on average fruit weight. Furthermore, both humic or fulvic acid applications gave no clear effect on average fruit juice than the control. So, this treatment gave no clear effect on SSC, total acidity and SSC/acid ratio in fruit juice than the control. but ,thes treatment gave a somewhat increment on average Vit-c in fruit juice.
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Claims 13
Claim · model-written summary
Humic acid alone significantly increased fruit set percentage relative to control.
Verbatim
e0“adding humic or fulvic acid each alone or together significantly increased the fruit set percentage but reduced pre-harvest drop than the control”
t0“Washington Navel Orange”
Claim · model-written summary
Fulvic acid alone significantly increased fruit set percentage relative to control.
Verbatim
e0“adding humic or fulvic acid each alone or together significantly increased the fruit set percentage but reduced pre-harvest drop than the control”
t0“Washington Navel Orange”
Claim · model-written summary
Joint humic and fulvic acid application significantly increased fruit set percentage.
Verbatim
e0“adding humic or fulvic acid each alone or together significantly increased the fruit set percentage but reduced pre-harvest drop than the control”
t0“Washington Navel Orange”
Claim · model-written summary
Humic acid alone reduced preharvest fruit drop relative to control.
Verbatim
e0“adding humic or fulvic acid each alone or together significantly increased the fruit set percentage but reduced pre-harvest drop than the control”
t0“Washington Navel Orange”
Claim · model-written summary
Fulvic acid alone reduced preharvest fruit drop relative to control.
Verbatim
e0“adding humic or fulvic acid each alone or together significantly increased the fruit set percentage but reduced pre-harvest drop than the control”
t0“Washington Navel Orange”
Claim · model-written summary
Joint humic and fulvic acid application reduced preharvest fruit drop relative to control.
Verbatim
e0“adding humic or fulvic acid each alone or together significantly increased the fruit set percentage but reduced pre-harvest drop than the control”
t0“Washington Navel Orange”
Claim · model-written summary
Humic acid at 30 ml with fulvic acid at 100 ml significantly increased fruit number per tree relative to other treatments or control.
Verbatim
e0“adding humic acid at 30 ml with fulvic acid at 100 ml significantly increased the number of fruit per trees than the other treatments or the control”
t0“Washington Navel Orange”
Claim · model-written summary
The 30 ml humic plus 100 ml fulvic acid treatment produced higher yield.
Verbatim
e0“adding humic acid at 30 ml with fulvic acid at 100 ml significantly increased the number of fruit per trees than the other treatments or the control since, this treatment gave a higher yield”
t0“Washington Navel Orange”
Claim · model-written summary
The treatment had no clear effect on average fruit weight.
- Taxon
- Washington Navel Oranget0
- Treatment
- humic acid at 30 ml with fulvic acid at 100 mle1
- Outcome
- average fruit weighte0
- Direction
- no clear effecte0
Not reportedComparator
Verbatim
e0“no clear effect had obtained on average fruit weight”
e1“adding humic acid at 30 ml with fulvic acid at 100 ml”
t0“Washington Navel Orange”
Claim · model-written summary
Humic acid application had no clear effect on average fruit juice.
Verbatim
e0“both humic or fulvic acid applications gave no clear effect on average fruit juice than the control”
t0“Washington Navel Orange”
Claim · model-written summary
Fulvic acid application had no clear effect on average fruit juice.
Verbatim
e0“both humic or fulvic acid applications gave no clear effect on average fruit juice than the control”
t0“Washington Navel Orange”
Claim · model-written summary
The treatment had no clear effect on soluble solids, total acidity or their ratio in fruit juice.
Verbatim
e0“this treatment gave no clear effect on SSC, total acidity and SSC/acid ratio in fruit juice than the control”
e1“humic acid at 30 ml with fulvic acid at 100 ml”
t0“Washington Navel Orange”
Claim · model-written summary
The treatment somewhat increased vitamin C in fruit juice.
- Taxon
- Washington Navel Oranget0
- Treatment
- humic acid at 30 ml with fulvic acid at 100 mle1
- Outcome
- average Vit-c in fruit juicee0
- Direction
- incremente0
Not reportedComparator
Verbatim
e0“thes treatment gave a somewhat increment on average Vit-c in fruit juice”
e1“humic acid at 30 ml with fulvic acid at 100 ml”
t0“Washington Navel Orange”
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