Abstract
Tow field trials were carried out in 2010 and 2011 summer seasons to study the effect of mineral, organic, natural rocks and biofertilizers on yield and yield components of Sahka 53 and Giza 102 sunflower varieties in newly reclaimed soils. The field experiments were layout at the AgriculturalExperimentalDesert station, Faculty of Agriculture, CairoUniversity at Wadi El-Natroon, El-Beheira Governorate, Egypt. The results showed that the applying of organic fertilizers, natural mineral rocks and biofertilizers had positive effect on yield and yield components of two sunflower varieties under sandy soil condition as compared to NPKmineral fertilizers. Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season and the corresponding values at the second one were 4%,8%,19% and 3% in the same order. The obtained results showed that, there were no significant effect of the interaction between the varieties and various form of fertilization (organic, bio and mineral) application in most of the studied traits except in seed oil content and seed protein content in both seasons. On the other hand, applying of compost, bio fertilizers and natural mineral rocks had support Rhizosphere microorganism (RMO) and gave higher values of total bacteria counts, nitrogenase and dehydrogenase activity as compared to untreated treatments.
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Claims 14
Claim · model-written summary
Alternative fertilizers increased head diameter by 4% in the first season versus recommended NPK.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- head diametere0
- Direction
- increasede0
- Value
- 4%e0
- Qualifier
- first seasone0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season”
t0“SUNFLOWER”
Claim · model-written summary
Alternative fertilizers increased seed yield per plant by 5% in the first season.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- seed yield /plante0
- Direction
- increasede0
- Value
- 5%e0
- Qualifier
- first seasone0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season”
t0“SUNFLOWER”
Claim · model-written summary
Alternative fertilizers increased seed yield per faddan by 13% in the first season.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- seed yield /faddane0
- Direction
- increasede0
- Value
- 13%e0
- Qualifier
- first seasone0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season”
t0“SUNFLOWER”
Claim · model-written summary
Alternative fertilizers increased 100-seed weight by 5% in the first season.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- 100-seed weighte0
- Direction
- increasede0
- Value
- 5%e0
- Qualifier
- first seasone0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season”
t0“SUNFLOWER”
Claim · model-written summary
Head diameter increased by 4% in the second season.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- head diametere0
- Direction
- increasede0
- Value
- 4%e0
- Qualifier
- second onee0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season and the corresponding values at the second one were 4%,8%,19% and 3% in the same order”
t0“SUNFLOWER”
Claim · model-written summary
Seed yield per plant increased by 8% in the second season.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- seed yield /plante0
- Direction
- increasede0
- Value
- 8%e0
- Qualifier
- second onee0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season and the corresponding values at the second one were 4%,8%,19% and 3% in the same order”
t0“SUNFLOWER”
Claim · model-written summary
Seed yield per faddan increased by 19% in the second season.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- seed yield /faddane0
- Direction
- increasede0
- Value
- 19%e0
- Qualifier
- second onee0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season and the corresponding values at the second one were 4%,8%,19% and 3% in the same order”
t0“SUNFLOWER”
Claim · model-written summary
100-seed weight increased by 3% in the second season.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, natural mineral rocksandbiofertilizerse0
- Outcome
- 100-seed weighte0
- Direction
- increasede0
- Value
- 3%e0
- Qualifier
- second onee0
- Comparator
- recommend NPK mineral fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fertilizing with various rates of compost, natural mineral rocksandbiofertilizersincreased head diameter, seed yield /plant, seed yield /faddan and 100-seed weight by 4%, 5%,13% and 5% as compared to plants received recommend NPK mineral fertilizer dose,respectively at the first season and the corresponding values at the second one were 4%,8%,19% and 3% in the same order”
t0“SUNFLOWER”
Claim · model-written summary
Variety by fertilizer interaction was not significant for most studied traits.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- various form of fertilization (organic, bio and mineral)e0
- Outcome
- most of the studied traitse0
- Qualifier
- except in seed oil content and seed protein content in both seasonse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“there were no significant effect of the interaction between the varieties and various form of fertilization (organic, bio and mineral) application in most of the studied traits except in seed oil content and seed protein content in both seasons”
t0“SUNFLOWER”
Claim · model-written summary
Variety by fertilizer interaction affected seed oil content in both seasons.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- various form of fertilization (organic, bio and mineral)e1
- Outcome
- seed oil contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“except in seed oil content and seed protein content in both seasons”
e1“interaction between the varieties and various form of fertilization (organic, bio and mineral) application”
t0“SUNFLOWER”
Claim · model-written summary
Variety by fertilizer interaction affected seed protein content in both seasons.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- various form of fertilization (organic, bio and mineral)e1
- Outcome
- seed protein contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“except in seed oil content and seed protein content in both seasons”
e1“interaction between the varieties and various form of fertilization (organic, bio and mineral) application”
t0“SUNFLOWER”
Claim · model-written summary
Compost, biofertilizers and mineral rocks raised rhizosphere bacterial counts against untreated treatments.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, bio fertilizers and natural mineral rockse0
- Outcome
- total bacteria countse0
- Direction
- highere0
- Comparator
- untreated treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“applying of compost, bio fertilizers and natural mineral rocks had support Rhizosphere microorganism (RMO) and gave higher values of total bacteria counts, nitrogenase and dehydrogenase activity as compared to untreated treatments”
t0“SUNFLOWER”
Claim · model-written summary
Compost, biofertilizers and mineral rocks raised nitrogenase activity.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, bio fertilizers and natural mineral rockse0
- Outcome
- nitrogenasee0
- Direction
- highere0
- Comparator
- untreated treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“applying of compost, bio fertilizers and natural mineral rocks had support Rhizosphere microorganism (RMO) and gave higher values of total bacteria counts, nitrogenase and dehydrogenase activity as compared to untreated treatments”
t0“SUNFLOWER”
Claim · model-written summary
Compost, biofertilizers and mineral rocks raised dehydrogenase activity.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- compost, bio fertilizers and natural mineral rockse0
- Outcome
- dehydrogenase activitye0
- Direction
- highere0
- Comparator
- untreated treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“applying of compost, bio fertilizers and natural mineral rocks had support Rhizosphere microorganism (RMO) and gave higher values of total bacteria counts, nitrogenase and dehydrogenase activity as compared to untreated treatments”
t0“SUNFLOWER”
The same questions in other papers
fertilization · yield · Helianthus annuus (common sunflower)Positive and negative results
343 papers in the same direction as this paper · 18 in the opposite direction · 3 reporting no difference from an alternative
- negative
- positive
- positive
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See all 365 papers →fertilization · soil: biology · Helianthus annuus (common sunflower)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.