Abstract
Sunflower (Helianthus annuus L.) is an option for oilseed production, particularly in dry land areas due to good root system development. In this study, two field experiments were performed in the El-Khattara region (Sharkia Governorate, Egypt) during the 2005 season. The objective of this research was to determine the effect of organicnitrogen (ON) sources and their combinations as well as to compare the effect of ON and ammonium sulfate (AS) as a conventional fertilizer added individually or in combination on growth, yield components, oil percentage and the uptake of some macronutrients by sunflowers grown on sandy soil. The treatments of chicken manure (CM) and a mixture of farmyard manure (FYM) with CM were superior to the other treatments and gave the highest yield, dry matter yield, NPK uptake by plants at all growth stages along with seed yield at the mature stage. The effect of the different ON on crop yield and its components may follow the order; CM> palma residues (PR)> FYM. This was more emphasized when the materials were mixed with AS at a ratio of 3:1 and 1:1. The uptake of nitrogen (N), phosphorus (P) and potassium (K) by plants was affected by the addition of different N sources and treatments. The highest nutrient content and uptake by straw were obtained when treated with CM followed by PR at all growth stages, while it was PR followed by CM for seeds. Oil recovery was shown to respond to the N supply and the changes in individual fatty acids were not statistically different. However, it seems that the application of organic fertilizers resulted in an increase in total unsaturated fatty acids compared to the control.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Chicken manure and its farmyard manure mixture gave the highest yield, dry matter, nutrient uptake and mature seed yield.
- Taxon
- Sunflower
Helianthus annuuse1 - Organ / stage
- seede0
- Treatment
- chicken manure (CM) and a mixture of farmyard manure (FYM) with CMe0
- Outcome
- yield, dry matter yield, NPK uptake by plantse0
- Direction
- higheste0
- Comparator
- the other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments of chicken manure (CM) and a mixture of farmyard manure (FYM) with CM were superior to the other treatments and gave the highest yield, dry matter yield, NPK uptake by plants at all growth stages along with seed yield at the mature stage”
e1“Sunflower (Helianthus annuus L.)”
Claim · model-written summary
Crop yield and components ranked chicken manure above palma residues above farmyard manure.
- Taxon
- SunflowerHelianthus annuuse1
- Outcome
- crop yield and its componentse0
- Direction
- CM> palma residues (PR)> FYMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of the different ON on crop yield and its components may follow the order; CM> palma residues (PR)> FYM”
e1“Sunflower (Helianthus annuus L.)”
Claim · model-written summary
Mixing organic materials with ammonium sulfate at ratios 3:1 and 1:1 emphasized the yield ranking.
- Taxon
- SunflowerHelianthus annuuse1
- Treatment
- materials were mixed with AS at a ratio of 3:1 and 1:1e0
- Outcome
- crop yield and its componentse2
- Direction
- more emphasizede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This was more emphasized when the materials were mixed with AS at a ratio of 3:1 and 1:1.”
e1“Sunflower (Helianthus annuus L.)”
e2“The effect of the different ON on crop yield and its components may follow the order; CM> palma residues (PR)> FYM”
Claim · model-written summary
Different nitrogen sources affected sunflower nitrogen, phosphorus and potassium uptake.
- Taxon
- SunflowerHelianthus annuuse1
- Treatment
- different N sources and treatmentse0
- Outcome
- uptake of nitrogen (N), phosphorus (P) and potassium (K) by plantse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The uptake of nitrogen (N), phosphorus (P) and potassium (K) by plants was affected by the addition of different N sources and treatments.”
e1“Sunflower (Helianthus annuus L.)”
Claim · model-written summary
Chicken manure gave the highest straw nutrient content and uptake, followed by palma residues.
- Taxon
- SunflowerHelianthus annuuse1
- Organ / stage
- strawe0
- Treatment
- CMe0
- Outcome
- nutrient content and uptake by strawe0
- Direction
- higheste0
- Comparator
- PRe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest nutrient content and uptake by straw were obtained when treated with CM followed by PR at all growth stages”
e1“Sunflower (Helianthus annuus L.)”
Claim · model-written summary
Palma residues gave the highest seed nutrient content and uptake, followed by chicken manure.
- Taxon
- SunflowerHelianthus annuuse2
- Organ / stage
- seedse0
- Treatment
- PRe0
- Outcome
- nutrient content and uptakee1
- Direction
- higheste1
- Comparator
- CMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while it was PR followed by CM for seeds.”
e1“The highest nutrient content and uptake by straw were obtained when treated with CM followed by PR at all growth stages”
e2“Sunflower (Helianthus annuus L.)”
Claim · model-written summary
Oil recovery responded to nitrogen supply.
- Taxon
- SunflowerHelianthus annuuse1
- Treatment
- N supplye0
- Outcome
- Oil recoverye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil recovery was shown to respond to the N supply”
e1“Sunflower (Helianthus annuus L.)”
Claim · model-written summary
Changes in individual fatty acids were not statistically different.
- Taxon
- SunflowerHelianthus annuuse1
- Outcome
- changes in individual fatty acidse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the changes in individual fatty acids were not statistically different”
e1“Sunflower (Helianthus annuus L.)”
Claim · model-written summary
Organic fertilizers appeared to increase total unsaturated fatty acids compared with the control.
- Taxon
- SunflowerHelianthus annuuse1
- Treatment
- organic fertilizerse0
- Outcome
- total unsaturated fatty acidse0
- Direction
- increasee0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it seems that the application of organic fertilizers resulted in an increase in total unsaturated fatty acids compared to the control”
e1“Sunflower (Helianthus annuus L.)”
The same questions in other papers
fertilization · quality: oil · Helianthus annuus (common sunflower)Results differ
75 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
85 papers more in this group
See all 89 papers →fertilization · nutrient: content · Helianthus annuus (common sunflower)Positive and negative results
63 papers in the same direction as this paper · 7 in the opposite direction
- negative
- no effect
- no effect
67 papers more in this group
See all 71 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
- positive
- positive
- positive
361 papers more in this group
See all 365 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.