Abstract
This study was carried out during two successive seasons, (2014 and 2015) in a private orchard located at Ismailia governorate, Egypt. The study was conducted on 10years old orange trees of Valencia oranges, budded on Volkamer lemon rootstock grown on sandy soil under drip irrigation system planted at 3.5 X 6 m apart and uniform in shape and received the common horticultural practices, except mineral nitrogen fertilization Combinations effect of some levels from mineral nitrogen fertilization (25, 50 and 75 %) from two sources of nitrogen (ammonium slupate and ammonium nitrate) with the 75, 50 and 25 % from bio-fertilization a liquid microbial mixture (composed of three different microbes (Azotobacter chroococcum, Bacillus megaterium and Bacillus circulans) at ratio 1:1:1) compared with 100% mineral nitrogen fertilization (control) from the two sources on vegetative growth, leaf mineral content, yield , fruit quality nitrate and nitrite content of Valenica oranges were investigated. The obtained results showed that, combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizer significantly increased leaf content of N, and P contents as well as improved yield, number of fruit/tree and L- ascorbic acid fruit content . Also the same treatments significantly reduced peel thickness as well as nitrate and nitrite contents in fruit juice. Meanwhile the lowest values in the most measurements were recorded with mineral treatments without bio-fertilizer (control) and less mineral nitrogen fertilization (25% ammonium nitrate) with fertilizationcompared with other treatments
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Claims 6
Claim · model-written summary
Combining 25% mineral N with 75% bio-fertilizer significantly increased leaf N and P contents relative to 100% mineral N in Valencia oranges.
- Taxon
- Valencia oranges
Citrus sinensise1 - Organ / stage
- leafe4
- Treatment
- combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizere2
- Outcome
- leaf content of N, and P contentse4
- Direction
- increasede4
- Comparator
- 100% mineral nitrogen fertilizatione3
- Setting
- Ismailia governorate, Egypte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was carried out during two successive seasons, (2014 and 2015) in a private orchard located at Ismailia governorate, Egypt”
e1“The study was conducted on 10years old orange trees of Valencia oranges”
e2“combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizer”
e3“compared with 100% mineral nitrogen fertilization (control)”
e4“significantly increased leaf content of N, and P contents”
Claim · model-written summary
Combined N and bio-fertilizer treatment improved yield and number of fruit per tree of Valencia oranges.
- Taxon
- Valencia orangesCitrus sinensise1
- Treatment
- combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizere2
- Outcome
- yield, number of fruit/treee5
- Direction
- improvede5
- Comparator
- 100% mineral nitrogen fertilizatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The study was conducted on 10years old orange trees of Valencia oranges”
e2“combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizer”
e3“compared with 100% mineral nitrogen fertilization (control)”
e5“as well as improved yield, number of fruit/tree and L- ascorbic acid fruit content”
Claim · model-written summary
Combined N and bio-fertilizer treatment improved L-ascorbic acid content of Valencia orange fruit.
- Taxon
- Valencia orangesCitrus sinensise1
- Treatment
- combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizere2
- Outcome
- L- ascorbic acid fruit contente5
- Direction
- improvede5
- Comparator
- 100% mineral nitrogen fertilizatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The study was conducted on 10years old orange trees of Valencia oranges”
e2“combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizer”
e3“compared with 100% mineral nitrogen fertilization (control)”
e5“as well as improved yield, number of fruit/tree and L- ascorbic acid fruit content”
Claim · model-written summary
Combined N and bio-fertilizer treatment significantly reduced peel thickness of Valencia oranges.
- Taxon
- Valencia orangesCitrus sinensise1
- Organ / stage
- peele6
- Treatment
- combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizere2
- Outcome
- peel thicknesse6
- Direction
- reducede6
- Comparator
- 100% mineral nitrogen fertilizatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The study was conducted on 10years old orange trees of Valencia oranges”
e2“combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizer”
e3“compared with 100% mineral nitrogen fertilization (control)”
e6“Also the same treatments significantly reduced peel thickness as well as nitrate and nitrite contents in fruit juice”
Claim · model-written summary
Combined N and bio-fertilizer treatment significantly reduced nitrate and nitrite contents in orange fruit juice.
- Taxon
- Valencia orangesCitrus sinensise1
- Treatment
- combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizere2
- Outcome
- nitrate and nitrite contents in fruit juicee6
- Direction
- reducede6
- Comparator
- 100% mineral nitrogen fertilizatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The study was conducted on 10years old orange trees of Valencia oranges”
e2“combined application of N through 25% ammonium sulphate or ammonium nitrate as a recommended rate plus 75% bio- fertilizer”
e3“compared with 100% mineral nitrogen fertilization (control)”
e6“Also the same treatments significantly reduced peel thickness as well as nitrate and nitrite contents in fruit juice”
Claim · model-written summary
Mineral-only treatments without bio-fertilizer gave the lowest values in most measurements.
- Taxon
- Valencia orangesCitrus sinensise1
- Treatment
- mineral treatments without bio-fertilizere7
- Outcome
- most measurementse7
- Direction
- loweste7
- Comparator
- other treatmentse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The study was conducted on 10years old orange trees of Valencia oranges”
e7“the lowest values in the most measurements were recorded with mineral treatments without bio-fertilizer (control) and less mineral nitrogen fertilization (25% ammonium nitrate) with fertilizationcompared with other treatments”
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See all 56 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.