Abstract
In order to comparision the effect of biological and chemical fertilizer on grain yield components and fertilizer use efficiency in sunflower, this study was carried out in Markazi province in 2009. A factorial arrangement of treatment in a randomized complete block design with three replications was used. Treatments included inoculation with Nitroxin (N0= Control, N 1= Inoculation), Inoculation with Barvar-2 (B0= Control, B 1= Inoculation) and application of chemical fertilizer combination of nitrogen and phosphorus (C0= N0 + P0, C1= N50 + P25 , C2= N100 + P50 , C3= N150 + P75 kg.ha -1 ). Each plot consisted of four rows, 6 m long with 60 cm between rows space and 21 cm between plants on the rows. In this study characteristics such as: plant height, head diameter, 1000 grain weight, number of grain per head, grain yield, harvest index, N and P use efficiency and chlorophyll index were assessed. Results indicated that the effect of Barvar-2 biological fertilizer on the harvest index and inoculation with Nitroxin on number of grain per head, grain yield, harvest index were significant. Chemical fertiliser combination of nitrogen and phosphorus on charecteritic s such as: plant height, head diameter, 1000 grain weight, number of grain per head, grain yield, nitrogen use efficiency and chlorophyll index was significant, too. Among the different levels of combination application of chemical fertiliser, that 100 kg.ha -1 nitrogen + 50 kg.ha -1 phosphorus with average of grain yield equal 1603 kg.ha -1 and 50 kg.ha -1 nitrogen + 25 kg.ha -1 phosphorus treatment, with average of grain yield equal 1283 kg.ha -1 were significantly superior to the other treatments. Therefore, it seems that quantity and quality of crops yield increased by integrative using of different fertilizers.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 8
Claim · model-written summary
Barvar-2 significantly affected harvest index.
- Taxon
- sunflower
Helianthus annuuse2 - Treatment
- Barvar-2 biological fertilizere0
- Outcome
- harvest indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of Barvar-2 biological fertilizer on the harvest index”
e1“were significant. Chemical fertiliser combination”
e2“in sunflower”
Claim · model-written summary
Nitroxin inoculation significantly affected grain number per head, grain yield and harvest index.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- inoculation with Nitroxine0
- Outcome
- number of grain per head, grain yield, harvest indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with Nitroxin on number of grain per head, grain yield, harvest index were significant”
e1“in sunflower”
Claim · model-written summary
Nitrogen and phosphorus chemical fertilizer significantly affected plant height, head diameter and 1000 grain weight.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- Chemical fertiliser combination of nitrogen and phosphoruse0
- Outcome
- plant height, head diameter, 1000 grain weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical fertiliser combination of nitrogen and phosphorus on charecteritic s such as: plant height, head diameter, 1000 grain weight, number of grain per head, grain yield, nitrogen use efficiency and chlorophyll index was significant”
e1“in sunflower”
Claim · model-written summary
Nitrogen and phosphorus chemical fertilizer significantly affected grain number per head and grain yield.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- Chemical fertiliser combination of nitrogen and phosphoruse0
- Outcome
- number of grain per head, grain yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical fertiliser combination of nitrogen and phosphorus on charecteritic s such as: plant height, head diameter, 1000 grain weight, number of grain per head, grain yield, nitrogen use efficiency and chlorophyll index was significant”
e1“in sunflower”
Claim · model-written summary
Nitrogen and phosphorus chemical fertilizer significantly affected nitrogen use efficiency and chlorophyll index.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- Chemical fertiliser combination of nitrogen and phosphoruse0
- Outcome
- nitrogen use efficiency and chlorophyll indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical fertiliser combination of nitrogen and phosphorus on charecteritic s such as: plant height, head diameter, 1000 grain weight, number of grain per head, grain yield, nitrogen use efficiency and chlorophyll index was significant”
e1“in sunflower”
Claim · model-written summary
The 100 kg.ha -1 nitrogen plus 50 kg.ha -1 phosphorus treatment yielded 1603 kg.ha -1 and was superior to other treatments.
- Taxon
- sunflowerHelianthus annuuse2
- Treatment
- 100 kg.ha -1 nitrogen + 50 kg.ha -1 phosphoruse0
- Outcome
- grain yielde0
- Direction
- superiore1
- Value
- 1603 kg.ha -1e0
- Comparator
- the other treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100 kg.ha -1 nitrogen + 50 kg.ha -1 phosphorus with average of grain yield equal 1603 kg.ha -1”
e1“were significantly superior to the other treatments”
e2“in sunflower”
Claim · model-written summary
The 50 kg.ha -1 nitrogen plus 25 kg.ha -1 phosphorus treatment yielded 1283 kg.ha -1 and was superior to other treatments.
- Taxon
- sunflowerHelianthus annuuse2
- Treatment
- 50 kg.ha -1 nitrogen + 25 kg.ha -1 phosphoruse0
- Outcome
- grain yielde0
- Direction
- superiore1
- Value
- 1283 kg.ha -1e0
- Comparator
- the other treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50 kg.ha -1 nitrogen + 25 kg.ha -1 phosphorus treatment, with average of grain yield equal 1283 kg.ha -1”
e1“were significantly superior to the other treatments”
e2“in sunflower”
Claim · model-written summary
The authors interpret integrated fertilizer use as increasing crop yield quantity and quality.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- integrative using of different fertilizerse0
- Outcome
- quantity and quality of crops yielde0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quantity and quality of crops yield increased by integrative using of different fertilizers”
e1“in sunflower”
The same questions in other papers
phosphorus · yield · Helianthus annuus (common sunflower)Results differ
78 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
77 papers more in this group
See all 81 papers →nitrogen · yield · Helianthus annuus (common sunflower)Positive and negative results
181 papers in the same direction as this paper · 10 in the opposite direction · 4 reporting no difference from an alternative
- negative
- no effect
- negative
192 papers more in this group
See all 196 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.