Abstract
Sulfur (S) is one of the severely limited nutrients in rainfed semi‐arid tropical Alfisols. Its application plays an important role in improving the yield and quality of oilseed crops. To identify the optimum level of sulfur for greater yield and oil content in the sunflower crop (MSFH‐8) through suitable sources, a field experiment involving varying levels of S through two sources (gypsum and elemental S) in combination with standard levels of nitrogen (N) and phosphorus (P) was conducted on a sandy loam soil (Typic Haplustalf) at Hayathnagar Research Farm of Central Research Institute for Dryland Agriculture, Hyderabad, situated at an altitude of 515 m above mean sea level and on 78° 36′ E longitude and 17° 18′ N latitude. The response to S application in sunflower crop in terms of growth parameters, yield components, nutrient uptake, and seed oil content was conspicuous. The application of graded levels of sulfur at rates of 20, 40, and 60 kg ha−1 applied through elemental S significantly increased the seed yield of the sunflower crop over the control by 5.4, 10.7, and 18.1% respectively, whereas the corresponding increases in case of gypsum (CaSO4·2H2O) were 25.1, 28.8, and 33.9% respectively. The greatest seed yield of sunflower (1175 kg ha−1) and percentage oil content (39.7%) was obtained with 60 kg S ha−1 through gypsum under rainfed conditions. Our study clearly indicated that the application of S at relatively high levels significantly increased the uptake of N, P, and S. The percentage oil content in seed recorded a positive and highly significant relationship with the uptake of N (r = 0.958**), P (r = 0.967**), and S (r = 0.951**), signifying the importance of balanced nutrition in influencing the oil content of seed in sunflower. The application of S through gypsum at rate of 60 kg S ha−1 along with 40 kg N and 30 kg P2O5 ha−1 was most superior in enhancing the seed yield and percentage oil content in seed.
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 13
Claim · model-written summary
Elemental sulfur at 20 kg per hectare increased seed yield by 5.4% over control.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- 20, 40, and 60 kg ha−1 applied through elemental Se0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 5.4e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“20, 40, and 60 kg ha−1 applied through elemental S significantly increased the seed yield of the sunflower crop over the control by 5.4, 10.7, and 18.1% respectively”
Claim · model-written summary
Elemental sulfur at 40 kg per hectare increased seed yield by 10.7% over control.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 40, and 60 kg ha−1 applied through elemental Se0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 10.7e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“20, 40, and 60 kg ha−1 applied through elemental S significantly increased the seed yield of the sunflower crop over the control by 5.4, 10.7, and 18.1% respectively”
Claim · model-written summary
Elemental sulfur at 60 kg per hectare increased seed yield by 18.1% over control.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 60 kg ha−1 applied through elemental Se0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 18.1%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“20, 40, and 60 kg ha−1 applied through elemental S significantly increased the seed yield of the sunflower crop over the control by 5.4, 10.7, and 18.1% respectively”
Claim · model-written summary
Gypsum at 20 kg sulfur per hectare increased seed yield by 25.1%.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- gypsum (CaSO4·2H2O)e0
- Outcome
- seed yielde1
- Direction
- increasese0
- Value
- 25.1e0
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corresponding increases in case of gypsum (CaSO4·2H2O) were 25.1, 28.8, and 33.9% respectively”
e1“seed yield of the sunflower crop over the control”
Claim · model-written summary
Gypsum at 40 kg sulfur per hectare increased seed yield by 28.8%.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- gypsum (CaSO4·2H2O)e0
- Outcome
- seed yielde1
- Direction
- increasese0
- Value
- 28.8e0
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corresponding increases in case of gypsum (CaSO4·2H2O) were 25.1, 28.8, and 33.9% respectively”
e1“seed yield of the sunflower crop over the control”
Claim · model-written summary
Gypsum at 60 kg sulfur per hectare increased seed yield by 33.9%.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- gypsum (CaSO4·2H2O)e0
- Outcome
- seed yielde1
- Direction
- increasese0
- Value
- 33.9%e0
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corresponding increases in case of gypsum (CaSO4·2H2O) were 25.1, 28.8, and 33.9% respectively”
e1“seed yield of the sunflower crop over the control”
Claim · model-written summary
Gypsum at 60 kg sulfur per hectare gave the greatest seed yield of 1175 kg per hectare.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 60 kg S ha−1 through gypsume0
- Outcome
- seed yielde0
- Direction
- greateste0
- Value
- 1175 kg ha−1e0
- Setting
- rainfed conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest seed yield of sunflower (1175 kg ha−1) and percentage oil content (39.7%) was obtained with 60 kg S ha−1 through gypsum under rainfed conditions.”
Claim · model-written summary
Gypsum at 60 kg sulfur per hectare gave an oil content of 39.7%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 60 kg S ha−1 through gypsume0
- Outcome
- percentage oil contente0
- Direction
- greateste0
- Value
- 39.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest seed yield of sunflower (1175 kg ha−1) and percentage oil content (39.7%) was obtained with 60 kg S ha−1 through gypsum under rainfed conditions.”
Claim · model-written summary
Higher sulfur rates increased uptake of nitrogen, phosphorus and sulfur.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- application of S at relatively high levelse0
- Outcome
- uptake of N, P, and Se0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of S at relatively high levels significantly increased the uptake of N, P, and S.”
e1“the sunflower crop (MSFH‐8)”
Claim · model-written summary
Seed oil content was positively associated with nitrogen uptake.
- Taxon
- sunflowerHelianthus annuuse1
- Compound
- Ne0
- Outcome
- percentage oil content in seede0
- Direction
- positivee0
- Value
- r = 0.958**e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage oil content in seed recorded a positive and highly significant relationship with the uptake of N (r = 0.958**), P (r = 0.967**), and S (r = 0.951**)”
e1“the sunflower crop (MSFH‐8)”
Claim · model-written summary
Seed oil content was positively associated with phosphorus uptake.
- Taxon
- sunflowerHelianthus annuuse1
- Compound
- Pe0
- Outcome
- percentage oil content in seede0
- Direction
- positivee0
- Value
- r = 0.967**e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage oil content in seed recorded a positive and highly significant relationship with the uptake of N (r = 0.958**), P (r = 0.967**), and S (r = 0.951**)”
e1“the sunflower crop (MSFH‐8)”
Claim · model-written summary
Seed oil content was positively associated with sulfur uptake.
- Taxon
- sunflowerHelianthus annuuse1
- Compound
- Se0
- Outcome
- percentage oil content in seede0
- Direction
- positivee0
- Value
- r = 0.951**e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage oil content in seed recorded a positive and highly significant relationship with the uptake of N (r = 0.958**), P (r = 0.967**), and S (r = 0.951**)”
e1“the sunflower crop (MSFH‐8)”
Claim · model-written summary
The authors identified gypsum at 60 kg sulfur plus nitrogen and phosphorus as the best treatment for yield and oil content.
- Taxon
- sunflowerHelianthus annuuse1
- Outcome
- application of S through gypsum at rate of 60 kg S ha−1 along with 40 kg N and 30 kg P2O5 ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of S through gypsum at rate of 60 kg S ha−1 along with 40 kg N and 30 kg P2O5 ha−1 was most superior in enhancing the seed yield and percentage oil content in seed.”
e1“the sunflower crop (MSFH‐8)”
The same questions in other papers
lime · quality: oil · Helianthus annuus (common sunflower)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
2 papers more in this group
See all 6 papers →lime · yield · Helianthus annuus (common sunflower)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
13 papers more in this group
See all 17 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.