Paper · 2023 · Assiut Journal of Agricultural Sciences/Assuit Journal of Agricultural Sciences

Minimizing mineral-N fertilization Superior seedless grapevines by using humic and fulvic acids

Abdel-Fattah El-Salhy; Moamen Al-Wasfy; El-Nopy Salem; et al.

4
claims
8
verbatim quotes
6
citations
3
research areas
✓
Open access

Abstract

Nowadays a great attention is focused on minimizing the intensive amounts of mineral nitrogen fertilization by applying organic aminding such as humic and fulvic acids which considered the main fraction of humic substances and fulvic acid could stimulate plant growth and consequently yield. To achieve this aim an experiment was conducted on 14 years old Superior seedless grapevines in 2020, 2021 and 2022. Application of mineral-N at 50 to 75% of recommended dose of nitrogen (RND) along 25% of humic acid or/and fulvic acid. The experimental vines were arranged in a complete randomized design with four treatments and three replications two vines per each. The obtained results could be summarized as follow: Using RDN via 50 to 75% mineral plus 25% Humic acid and/or fulvic acid significantly increased, leaf area, pruning wood weight, and leaf total chlorophyll as well as leaf nutrient composition compared to use RDN via mineral N fertilizer alone. All combined fertilization treatments significantly increased the yield and improved the cluster and berry traits compared to use RDN via mineral source only.

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Claims 4

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined fertilization significantly increased leaf area and pruning wood weight.

Taxon
Superior seedless grapevinest0
Treatment
50 to 75% mineral plus 25% Humic acid and/or fulvic acide0
Outcome
leaf area, pruning wood weighte0
Direction
increasede0
Comparator
RDN via mineral N fertilizer alonee0

Verbatim

e0

“Using RDN via 50 to 75% mineral plus 25% Humic acid and/or fulvic acid significantly increased, leaf area, pruning wood weight, and leaf total chlorophyll as well as leaf nutrient composition compared to use RDN via mineral N fertilizer alone”

✓ located verbatim in the source · abstract, characters 714–956 · show in text ↑
t0

“Superior seedless grapevines”

✓ located verbatim in the source · title, characters 35–63 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined fertilization significantly increased leaf total chlorophyll and nutrient composition.

Taxon
Superior seedless grapevinest0
Treatment
50 to 75% mineral plus 25% Humic acid and/or fulvic acide0
Outcome
leaf total chlorophyll as well as leaf nutrient compositione0
Direction
increasede0
Comparator
RDN via mineral N fertilizer alonee0

Verbatim

e0

“Using RDN via 50 to 75% mineral plus 25% Humic acid and/or fulvic acid significantly increased, leaf area, pruning wood weight, and leaf total chlorophyll as well as leaf nutrient composition compared to use RDN via mineral N fertilizer alone”

✓ located verbatim in the source · abstract, characters 714–956 · show in text ↑
t0

“Superior seedless grapevines”

✓ located verbatim in the source · title, characters 35–63 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined fertilization significantly increased grapevine yield.

Taxon
Superior seedless grapevinest0
Treatment
combined fertilization treatmentse0
Outcome
yielde0
Direction
increasede0
Comparator
RDN via mineral source onlye0

Verbatim

e0

“All combined fertilization treatments significantly increased the yield and improved the cluster and berry traits compared to use RDN via mineral source only”

✓ located verbatim in the source · abstract, characters 958–1115 · show in text ↑
t0

“Superior seedless grapevines”

✓ located verbatim in the source · title, characters 35–63 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined fertilization improved cluster and berry traits.

Taxon
Superior seedless grapevinest0
Treatment
combined fertilization treatmentse0
Outcome
cluster and berry traitse0
Direction
improvede0
Comparator
RDN via mineral source onlye0

Verbatim

e0

“All combined fertilization treatments significantly increased the yield and improved the cluster and berry traits compared to use RDN via mineral source only”

✓ located verbatim in the source · abstract, characters 958–1115 · show in text ↑
t0

“Superior seedless grapevines”

✓ located verbatim in the source · title, characters 35–63 · show in text ↑

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