Abstract
In order to study the response of productivity and fruit quality of guava trees to three foliar applications of three organic manures extracts namely: Farmyard, plant compost and chicken manure. A field trial was carried out during two seasons (2019 and 2020) on ten years old guava trees grown in sandy calcareous soil located at Cairo-Alexandria desert road (70 km from Cairo city, Egypt). The trees received three sprays from these organic manures extracts at start of vegetative growth (first of March), just fruit setting (first of April) and one month later. The obtained data showed that, spraying the three organic manures extracts, individually or in combination, significantly enhanced leaves mineral contents (N, P, K and Mg) rather than untreated trees. Whereas, only the three organic manure extract mixtures (chicken manure (Ch.ME) + compost manure (CME) + farmyard (FME)) significantly increased Ca % in leaves, during the second season. Remarkable and significant increase was observed for yield (kg/tree) and its components (fruit number/tree and average fruit weight) as a result of spraying the three organic manure extracts individually or in combination compared to untreated trees. Spraying the three organic manure extracts (Ch.ME, CME and FME) significantly improved all physical properties of fruit in terms fruit height (cm), fruit diameter (cm), and pulp thickness (cm), as well as fruit chemical properties in terms of TSS %, total sugars % and vitamin C (mg/100 g F.W.) and decreased total acidity %. The best results with regard to yield/tree, fruit physical and chemical properties of guava trees were obtained when the trees were treated three times with the mixture of the three organic manure extracts in combinations (Ch.ME + CME + FME)
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Claims 7
Claim · model-written summary
Organic manure extracts increased guava leaf N, P, K and Mg versus untreated trees.
- Taxon
- Guava Trees
Psidium guajavat0 - Treatment
- three organic manures extracts, individually or in combinatione0
- Outcome
- leaves mineral contents (N, P, K and Mg)e0
- Direction
- enhancede0
- Comparator
- untreated treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Guava Trees”
e0“spraying the three organic manures extracts, individually or in combination, significantly enhanced leaves mineral contents (N, P, K and Mg) rather than untreated trees”
Claim · model-written summary
The three manure extract mixture increased guava leaf Ca percentage in the second season.
- Taxon
- Guava TreesPsidium guajavat0
- Treatment
- chicken manure (Ch.ME) + compost manure (CME) + farmyard (FME)e0
- Outcome
- Ca % in leavese0
- Direction
- increasede0
- Qualifier
- second seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Guava Trees”
e0“only the three organic manure extract mixtures (chicken manure (Ch.ME) + compost manure (CME) + farmyard (FME)) significantly increased Ca % in leaves, during the second season”
Claim · model-written summary
Organic manure extracts increased guava yield per tree and its fruit number and weight components.
- Taxon
- Guava TreesPsidium guajavat0
- Treatment
- three organic manure extracts individually or in combinatione0
- Outcome
- yield (kg/tree) and its components (fruit number/tree and average fruit weight)e0
- Direction
- increasee0
- Comparator
- untreated treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Guava Trees”
e0“significant increase was observed for yield (kg/tree) and its components (fruit number/tree and average fruit weight) as a result of spraying the three organic manure extracts individually or in combination compared to untreated trees”
Claim · model-written summary
Organic manure extracts improved guava fruit height, diameter and pulp thickness.
- Taxon
- Guava TreesPsidium guajavat0
- Treatment
- three organic manure extracts (Ch.ME, CME and FME)e0
- Outcome
- fruit height (cm), fruit diameter (cm), and pulp thickness (cm)e0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Guava Trees”
e0“Spraying the three organic manure extracts (Ch.ME, CME and FME) significantly improved all physical properties of fruit in terms fruit height (cm), fruit diameter (cm), and pulp thickness (cm)”
Claim · model-written summary
Organic manure extracts improved guava fruit TSS, sugars and vitamin C.
- Taxon
- Guava TreesPsidium guajavat0
- Treatment
- three organic manure extracts (Ch.ME, CME and FME)e0
- Outcome
- TSS %, total sugars % and vitamin C (mg/100 g F.W.)e0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Guava Trees”
e0“Spraying the three organic manure extracts (Ch.ME, CME and FME) significantly improved all physical properties of fruit in terms fruit height (cm), fruit diameter (cm), and pulp thickness (cm), as well as fruit chemical properties in terms of TSS %, total sugars % and vitamin C (mg/100 g F.W.)”
Claim · model-written summary
Organic manure extracts decreased guava fruit total acidity.
- Taxon
- Guava TreesPsidium guajavat0
- Treatment
- three organic manure extracts (Ch.ME, CME and FME)e0
- Outcome
- total acidity %e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Guava Trees”
e0“Spraying the three organic manure extracts (Ch.ME, CME and FME) significantly improved all physical properties of fruit in terms fruit height (cm), fruit diameter (cm), and pulp thickness (cm), as well as fruit chemical properties in terms of TSS %, total sugars % and vitamin C (mg/100 g F.W.) and decreased total acidity %”
Claim · model-written summary
Three applications of the combined manure extracts gave the best guava yield and fruit properties.
- Taxon
- Guava TreesPsidium guajavat0
- Treatment
- three times with the mixture of the three organic manure extracts in combinations (Ch.ME + CME + FME)e0
- Outcome
- yield/tree, fruit physical and chemical propertiese0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Guava Trees”
e0“The best results with regard to yield/tree, fruit physical and chemical properties of guava trees were obtained when the trees were treated three times with the mixture of the three organic manure extracts in combinations (Ch.ME + CME + FME)”
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