Abstract
The combined application of organic and mineral fertilizers can be a proper way of nutrition management to increase the yield and quality and to mitigate environmental impacts of chemicals and the pertaining costs. The impact of different rates of sulfur-containing humic acid was studied on yield and nutrient uptake of the fruits of olive “Zard” three-year-old trees in a trial based on a Randomized Complete Block Design with three replications in Shariati College of Tehran, Iran. The studied treatment was sulfur-containing humic acid at four rates of 0, 20, 25 and 30 kg⋅ha−1, which was applied at two stages. The highest fresh weight, dry weight, chlorophyll b, carotenoid, N and Cu contents were related to humic acid rate of 20 kg⋅ha−1. The highest fruit length, chlorophyll a and total chlorophyll were observed in control. The highest K, Fe and Mn contents were obtained from plants treated with 30 kg⋅ha−1 humic acid. Plants treated with 25 kg⋅ha−1 exhibited the highest P and Zn contents. All in all, the application of sulfur-containing humic acid at different rates had favorable impacts on quantitative and qualitative traits of olive fruits.
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Claims 7
Claim · model-written summary
The 20 kg⋅ha−1 humic acid rate gave the highest fresh and dry weight in olive.
- Taxon
- olive
Olea europaeat0 - Treatment
- humic acid rate of 20 kg⋅ha−1e3
- Outcome
- fresh weight, dry weighte3
- Direction
- higheste3
- Setting
- Shariati College of Tehran, Irane1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Olive Fruit”
e1“in a trial based on a Randomized Complete Block Design with three replications in Shariati College of Tehran, Iran”
e3“The highest fresh weight, dry weight, chlorophyll b, carotenoid, N and Cu contents were related to humic acid rate of 20 kg⋅ha−1”
Claim · model-written summary
The 20 kg⋅ha−1 humic acid rate gave the highest chlorophyll b and carotenoid in olive.
- Taxon
- oliveOlea europaeat0
- Treatment
- humic acid rate of 20 kg⋅ha−1e3
- Outcome
- chlorophyll b, carotenoide3
- Direction
- higheste3
- Setting
- Shariati College of Tehran, Irane1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Olive Fruit”
e1“in a trial based on a Randomized Complete Block Design with three replications in Shariati College of Tehran, Iran”
e3“The highest fresh weight, dry weight, chlorophyll b, carotenoid, N and Cu contents were related to humic acid rate of 20 kg⋅ha−1”
Claim · model-written summary
The 20 kg⋅ha−1 humic acid rate gave the highest N and Cu contents in olive.
- Taxon
- oliveOlea europaeat0
- Treatment
- humic acid rate of 20 kg⋅ha−1e3
- Outcome
- N and Cu contentse3
- Direction
- higheste3
- Setting
- Shariati College of Tehran, Irane1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Olive Fruit”
e1“in a trial based on a Randomized Complete Block Design with three replications in Shariati College of Tehran, Iran”
e3“The highest fresh weight, dry weight, chlorophyll b, carotenoid, N and Cu contents were related to humic acid rate of 20 kg⋅ha−1”
Claim · model-written summary
The 30 kg⋅ha−1 humic acid rate gave the highest K, Fe and Mn contents in olive.
- Taxon
- oliveOlea europaeat0
- Treatment
- 30 kg⋅ha−1 humic acide4
- Outcome
- K, Fe and Mn contentse4
- Direction
- higheste4
- Setting
- Shariati College of Tehran, Irane1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Olive Fruit”
e1“in a trial based on a Randomized Complete Block Design with three replications in Shariati College of Tehran, Iran”
e4“The highest K, Fe and Mn contents were obtained from plants treated with 30 kg⋅ha−1 humic acid”
Claim · model-written summary
The 25 kg⋅ha−1 humic acid rate gave the highest P and Zn contents in olive.
- Taxon
- oliveOlea europaeat0
- Treatment
- Plants treated with 25 kg⋅ha−1e5
- Outcome
- P and Zn contentse5
- Direction
- higheste5
- Setting
- Shariati College of Tehran, Irane1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Olive Fruit”
e1“in a trial based on a Randomized Complete Block Design with three replications in Shariati College of Tehran, Iran”
e5“Plants treated with 25 kg⋅ha−1 exhibited the highest P and Zn contents”
Claim · model-written summary
Control olive plants had the highest fruit length, chlorophyll a and total chlorophyll.
- Taxon
- oliveOlea europaeat0
- Treatment
- sulfur-containing humic acide2
- Outcome
- fruit length, chlorophyll a and total chlorophylle6
- Direction
- higheste6
- Comparator
- controle6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Olive Fruit”
e2“The studied treatment was sulfur-containing humic acid at four rates of 0, 20, 25 and 30 kg⋅ha−1, which was applied at two stages”
e6“The highest fruit length, chlorophyll a and total chlorophyll were observed in control”
Claim · model-written summary
Sulfur-containing humic acid at different rates had favorable impacts on quantitative and qualitative traits of olive fruit.
- Taxon
- oliveOlea europaeat0
- Treatment
- application of sulfur-containing humic acid at different ratese7
- Outcome
- quantitative and qualitative traitse7
- Direction
- favorable impactse7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Olive Fruit”
e7“All in all, the application of sulfur-containing humic acid at different rates had favorable impacts on quantitative and qualitative traits of olive fruits”
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See all 20 papers →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.