phosphorus · Yield · Helianthus annuus (common sunflower)

Results differ81 papers: 79 positive, 2 negative or no effect · 4 pairs of papers confirmed to differ

148 claims from these papers; 10 citations between them.

Papers whose results differ, checked claim by claim 4

4 pairs of papers on this question report results that differ: an effect in one paper, the opposite effect or no effect in the other. Two model reviewers reading both claims accepted each pair.

Sunflower Response to Nitrogen and Phosphorus in Wheat‐Fallow Cropping Systems (1997)
no changeP application did not influence sunflower seed yield.
Influence of Phosphorus and Boron on Yield and Chemical Composition of Sunflower (1993)
increaseSunflower dry matter and seed yield increased linearly with P up to 90 kg P2O5 ha-1.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Sunflower Response to Nitrogen and Phosphorus in Wheat‐Fallow Cropping Systems (1997)
no changeP application did not influence sunflower seed yield.
Root System, Phenology and Yield of Sunflower in Relation to Nitrogen and Phosphorus (2015)
increaseP increased sunflower grain yield (GY).
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Sunflower Response to Nitrogen and Phosphorus in Wheat‐Fallow Cropping Systems (1997)
no changeP application did not influence sunflower seed yield.
Yield and nutrient uptake by winter sunflower (Helianthus annuus) as influenced by nitrogen and phosphorus (2001)
increasePhosphorus application significantly increased dry-matter yield per plant, seed yield and stover yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Sunflower Response to Nitrogen and Phosphorus in Wheat‐Fallow Cropping Systems (1997)
no changeP application did not influence sunflower seed yield.
Optimising sunflower yields: insights from meta-analysis on fertilisation impact and planting strategies for enhanced crop productivity in China (2025)
increasePhosphorus alone raised sunflower yield by 20.92%.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →

How these papers cite each other

10 citations between these papers: 10 on the same side, 0 across the two sides.

Positive result
Negative result or no effect
Citation, pointing to the cited paper
Citation across the two sides
Larger circle: more citations overall

Years run left to right. Citations come from the papers’ OpenAlex reference lists. Hover a paper to bring forward its citations; click it to open the paper.

Papers reporting a positive result 79

Response of Nitrogen and Phosphorus Fertilizer and Plant Spacing on Growth and Yield Contributing Character of Sunflower · 1970
- positive
  At 20 cm spacing, the 120 kg N plus 75 kg P2O5 rate produced the highest seed yield.
- positive
  At 20 cm spacing, the 120 kg N plus 75 kg P2O5 rate produced the highest head diameter.
- positive
  The 120 kg N plus 75 kg P2O5 rate produced maximum yield.
- positive
  The 120 kg N plus 75 kg P2O5 rate produced the maximum number of seeds per head.
cited by 1 paper here
RESEARCHES CONCERNING THE INFLUENCE OF THE AGROFUND UPON THE PRODUCTION OF CERTAIN SUN-FLOWER HYBRIDS CULTIVATED ON A CERNOSIUM FROM THE SOUTH OF OLTENIA – PORTARESTI AREA · 1970
- positive
  The specified N and P fertilizer rate produced 3130 kg/ha sunflower yield.
Influence of Phosphorus and Boron on Yield and Chemical Composition of Sunflower · 1993
- positive
  Boronated superphosphate gave higher seed yield of 1259 q ha−1.
- positive
  Boronated superphosphate produced the highest N, P and B concentrations in dry matter and seed relative to B + SSP.
  compared with B + SSP
- positive
  Sunflower dry matter and seed yield increased linearly with P up to 90 kg P2O5 ha-1.
cited by 1 paper here
Effect of Fertilizer Nitrogen and Phosphorus on the Grain Yield, Nutrient Uptake and Oil Quality of Sunflower · 1997
- positive
  Sunflower grain yield showed a significant response to N and P up to 60 kg N and 30 kg P2O5 ha-1 in three years of field experiments.
cited by 1 paper here
Optimizing sulphur application in sunflower (Helianthus annuus) under irrigated semi-arid tropical conditions · 2001
- positive
  20 kg S/ha through single super phosphate increased sunflower seed yield over control by 5.4%.
  compared with control
- positive
  40 kg S/ha through single super phosphate increased sunflower seed yield over control by 7.3%.
  compared with control
cited by 1 paper here
Integrated phosphorus management in maize (Zea mays)-sunflower (Helianthus annuus)-cowpea (Vigna unguiculata) fodder cropping system · 2001
- positive
  Single superphosphate with 75% recommended P2O5 increased sunflower plant height, dry-matter production and productivity.
Effect of integrated nutrient management techniques on yield attributes and yield of sunflower (Helianthus annuus) · 2001
- positive
  Integrated P-enriched FYM, inorganic fertilizer and biofertilizers had the highest benefit to cost ratio versus NPK alone.
  compared with application of NPK alone
Departrnerzt of Agrorzorny, Tnrnil Nadu Agricultural University, Coirnbatore 641 003 · 2001
- positive
  Single superphosphate at 75% recommended P increased sunflower height, dry matter and productivity.
cites 1 paper here
Yield and nutrient uptake by winter sunflower (Helianthus annuus) as influenced by nitrogen and phosphorus · 2001
- positive
  Phosphorus application significantly increased dry-matter yield per plant, seed yield and stover yield.
- no effect
  Phosphorus did not influence sunflower harvest index.
Differential susceptibility of some sunflower genotypes to phosphorus deficiency in a black soil · 2003
- positive
  KBSH-1 had the maximum grain yield response to phosphorus.
Influence of phosphorus and sulphur fertilization on productivity and oil yield of groundnut (Arachis hypogaea) and sunflower (Helianthus annuus) in intercropping with simultaneous and staggered planting · 2003
- positive
  Phosphorus and sulphur application significantly increased sunflower oil yield.
- positive
  Phosphorus and sulphur application significantly increased sunflower seed yield.
EFFECT OF NITROGEN AND PHOSPHORUS LEVELS AND RATIOS ON YIELD AND QUALITY OF SUNFLOWER (HELIANTHUS ANNUUS L.) · 2004
- positive
  Sunflower seed yield was significantly higher with NIP ratios of 1.0 and above 1.0 than with other ratios and levels.
  compared with other ratios and levels
Studies on Techniques of Nitrogen Fertilizer Application in Sunflower on Salinized Soil · 2004
- positive
  Combining nitrogen with phosphate and potash fertilizer increased yield more.
Response of nitrogen and phosphorus levels and ratios on seed filling and seed yield of sunflower hybrid · 2004
- positive
  The 120 kg nitrogen and phosphorus treatment gave higher seed yield of 3554 kg ha.
  compared with all other fertilizer levels and control
Yields and Nutrient Use-Efficiency in Groundnut-Sunflower Cropping System in Punjab, India · 2007
- positive
  Residue with 60 kg N ha−1 and 30 kg P2O5 ha−1 improved sunflower yield by 10–11%.
- positive
  Sunflower seed yield increased through 30 kg P2O5 ha−1.
- no effect
  Cumulative and direct P applications produced comparable sunflower yields.
  compared with direct applications
cited by 1 paper here
NUTRITIONAL DISORDERS BY DEFICIENCY IN SUNFLOWER var. CATISSOL-01 DESORDENS NUTRICIONAIS POR DEFICIÊNCIA EM GIRASSOL var. CATISSOL-01 · 2007
- positive
  K omission was among the most limiting to sunflower dry matter production.
  About lacking this nutrient, so it counts the other way round
- positive
  N omission was among the most limiting to sunflower dry matter production.
  About lacking this nutrient, so it counts the other way round
- positive
  P omission was among the most limiting to sunflower dry matter production.
  About lacking this nutrient, so it counts the other way round
- positive
  Ca omission was among the most limiting to sunflower dry matter production.
  About lacking this nutrient, so it counts the other way round
Nutrient recycling potential of IFS on yield attributes and yield of irrigated sunflower (Helianthus annuus L.) · 2008
- positive
  The combined fertilizer and available organic manure treatment gave higher sunflower head diameter, seed counts, seed weight, and seed and stalk yield.
- positive
  The combined treatment gave higher hundred seed weight, seed yield and stalk yield.
Phosphorus Efficiency in Sunflower Cultivars and Its Relationships with Phosphorus, Calcium, Iron, Zinc and Manganese Nutrition · 2009
- positive
  Phosphorus deficiency significantly decreased sunflower root yield.
  About lacking this nutrient, so it counts the other way round
EFFECT OF PHOSPHATE AND SOME MICRONUTRIENT FERTILIZATION ON GROWTH, YIELD AND CHEMICAL CONSTITUENTS OF SUNFLOWER(Helianthus annuus L.) PLANTS GROWN UNDER NEWLY RECLAIMED SOIL CONDITIONS · 2009
- positive
  Phosphate and micronutrients increased sunflower seed yield and yield components relative to control.
  compared with the control
Performance of phosphate solubilizing bacteria for improving growth and yield of sunflower (Helianthus annuus L.) in the presence of phosphorus fertilizer · 2010
- positive
  PSB increased seed yield by 15.0%.
  compared with no application
- positive
  PSB enhanced head diameter, seed weight, kernel ratio and oil content.
  compared with no application
- positive
  With PSB, about 50 kg P2O5 ha-1 matched the highest seed yield obtained with 100 kg P2O5 ha-1 alone.
  compared with 100 kg P2O5 ha-1 fertilizer
Growth Response and Flower yield of Sunflower to Phosphorus Fertilization in Ibadan, Southwestern Nigeria · 2010
- positive
  Phosphorus application significantly influenced sunflower growth and flower yield.
Effect Of Va-Mycorrhiza On Growth And Yield Of Sunflower (Helianthus Annuus L.) At Different Phosphorus Levels · 2010
- positive
  Increasing phosphorus above 75% of the recommended rate raised sunflower head diameter, seeds per head and thousand-seed weight in uninoculated plants.
Effects of Nitrogen,Phosphorus,Potassium and Boron on Physiological Parameter and Yield of Sunflower · 2010
- positive
  Increasing N, P, K and B fertilizer significantly improved growth and yield of sunflower.
Effect of Potassium Fertilizer on Sunflower Yield · 2010
- positive
  N,P treatment increased sunflower yield 37.2% versus CK.
  compared with CK treatment
- positive
  N,P,K treatment increased sunflower yield 73.0% versus CK.
  compared with CK treatment
Effects of Macronutrients on Seed Quality and Profitability Analysis of Sunflower Production in Northwest Pakistan · 2010
- positive
  K and P application increased net returns.
- positive
  K and P application reduced production cost.
- positive
  K and P application increased yield.
The effects of different fertilization structure on yields of sunflower in saline alkali soil · 2011
- positive
  In saline soil, sunflower production reached its maximum, 195.8 kg/667m2, at 5.78 kg/667m2 phosphorus.
- positive
  In alkali soil, sunflower production reached its maximum, 156.9 kg/667m2, at 5.71 kg/667m2 phosphorus.
EFFECTS OF PHOSPHORUS SUPPLY ON GROWTH, YIELD, AND YIELD COMPONENTS OF SAFFLOWER AND SUNFLOWER · 2011
- positive
  Sunflower growth and yield responded strongly to increasing phosphorus supply.
cited by 1 paper here
P-solubilizing bacteria and phosphorus fertilizer applications to sunflower improves seed set, seed filling efficiency and concentration of macro-and micro-nutrients of seeds · 2011
- positive
  PSB application significantly increased sunflower seed filling efficiency by 1.3-1.9%.
  compared with Control
- positive
  PSB application significantly increased sunflower seed set by 8.2-20.0% relative to control.
  compared with Control
- positive
  PSB application significantly increased sunflower kernel yield by 37.3-67.0%.
  compared with Control
- no effect
  50 kg ha-1 P fertilizer with PSB gave seed set and kernel yield similar to 100 kg ha-1 P fertilizer.
  compared with 100 kg ha -1 dose of P fertilizerNo difference from an alternative treatment
Response of Sunflower (Helianthus annuus L.) To Inoculation with Mycorrhiza Under Different Phosphorus Levels · 2012
- positive
  In non-inoculated sunflower, head diameter, number of seeds per head and 1000 seed weight increased with P above 75% of the recommended rate.
Response of sunflower (Helianthus annuus L.) to phosphorus and nitrogen fertilization under rainfed conditions, Blue Nile state-Sudan · 2013
- positive
  N and P applications increased plant height, dry matter and seed yield of sunflower in both seasons.
- positive
  N and P had mutually synergistic effects that significantly promoted growth and yield of sunflower.
Standardization of best management practices for yield maximization in sunflower (Helianthus annuus L.) · 2013
- positive
  FYM at 5 t/ha plus 133 percent RDF and 74074 plants/ha produced higher sunflower seed yield of 2478 kg/ha, statistically at par with 100% RDF at the same FYM and population.
  compared with 100% RDF
Response of Nut and Oilseed Sunflower to Different Sources and Levels of Phosphate and Zinc Nutrition · 2013
- positive
  PSB alone produced the highest kernel count per head, 2730.
- negative
  Oil sunflower grain yield was 1.28 t/ha under combined TSP, PSB and soil zinc sulphate.
- negative
  Oil sunflower grain yield was 1.29 t/ha with PSB alone.
Effect of Continuous Fertilization on Yield and Nutrient Uptake by Maize and Sunflower in Red Calcareous Soil (Typic Haplustalf) under Permanent Manurial Experiment · 2013
- positive
  Integrated NPK and manure gave sunflower seed yield of 1461 kg ha-1.
STANDARDIZATION OF BEST MANAGEMENT PRACTICES FOR YIELD MAXIMIZATION IN SUNFLOWER (Helianthus annuus L.) · 2013
- positive
  The 133 percent RDF treatment at higher density gave seed yield of 2478 kg/ha.
  compared with 100% RDF with same level of FYM and plant population
Potential for sunflower to use residual soil water in the dry season after maize in North-West Cambodia · 2014
- positive
  Basal application of 20:20:15 (N:P2O5:K2O) at 200 kg ha−1 produced sunflower achene yield of 2423 kg−1.
Influence of poultry composts on growth and yield attributes of sunflower · 2014
- positive
  Coir pith and rock phosphate poultry compost plus recommended NPK produced higher sunflower yield, comparable to coir pith compost plus 75% recommended NPK.
  compared with coir pith mixed poultry compost along with 75 per cent levels of recommended N, P and K
Response of biofertilizers and homo-brassinolide on growth, yield and oil content of sunflower (Helianthus annuus L.) · 2014
- positive
  Combined PSB, VAM and Azotobacter inoculation produced higher sunflower seed yield than the listed alternative inoculations in both years.
  compared with Azotobacter
Yield of sunflower affected by NPK fertilizer and available soil water content · 2014
- positive
  120 kg P2O5 per hectare produced highest production traits.
Effect of Mineral Fertilization and Irrigation on Sunflower Yields · 2015
- positive
  The highest N, P and K rates with full available soil water produced the highest production.
cited by 1 paper here
Evaluation of Biological and Chemical Fertilizers on Fertilizer Use Efficiency, Grain Yield and Yield Components of Sunflower · 2015
- positive
  The 100 kg.ha -1 nitrogen plus 50 kg.ha -1 phosphorus treatment yielded 1603 kg.ha -1 and was superior to other treatments.
  compared with the other treatments
- positive
  The 50 kg.ha -1 nitrogen plus 25 kg.ha -1 phosphorus treatment yielded 1283 kg.ha -1 and was superior to other treatments.
  compared with the other treatments
Fertilizer optimization for hybrid sunflower under irrigated condition · 2015
- positive
  Increasing N, P and K increased sunflower yield and yield components.
cites 1 paper here
Evaluating Role of Plant Growth Promoting Rhizobacteria for Improving Phosphorus use Efficiency and Productivity in Sunflower (Helianthus annuus) · 2015
- positive
  Both PGPR inoculants and their mixture combined with different phosphorus rates increased yield attributes and nutrient uptake in sunflower.
- positive
  Both PGPR inoculants and their mixture combined with different phosphorus rates increased BCR and phosphorus use efficiency in sunflower.
Root System, Phenology and Yield of Sunflower in Relation to Nitrogen and Phosphorus · 2015
- positive
  P increased sunflower grain yield (GY).
Influence of sunflower stover and nutrient management on growth, yield and energetics of sunflower (Helianthus annuus) in a pigeonpea (Cajanus cajan)- sunflower cropping system · 2016
- positive
  Recommended N and P dose produced significantly higher sunflower seed yield of 2.71 tonnes/ha.
- positive
  Recommended N and P dose produced net energy output of 120.0× 103 MJ/ha.
- positive
  Recommended N and P dose produced significantly higher sunflower stover yield of 4.44 tonnes/ha.
Effect of irrigation, N, and P on yield and yield attributes of spring sunflower (Helianthus annuus L.) · 2016
- positive
  Diameter of head, number and weight of seeds per head, and seed yield increased with increasing levels of N and P.
- positive
  Irrigation at 0.8 IW:CPE ratio with N at 120 kg ha-1 and P2O5 at 80 kg ha-1 gave maximum plant height, number of leaves and dry weight per plant at harvest.
cited by 1 paper here
Grain yield, oil content and nutrient content in leaf of sunflower with different dosis of N, P and K fertilization · 2016
- positive
  All tested NPK fertilizer combinations raised grain yield over no fertilizer.
  compared with treatment without fertilization
Nutrient Management for Sustaining Productivity of Sunflower-Based Cropping Sequence in Indian Semiarid Regions · 2017
- positive
  Applying 150% of recommended NPK increased system productivity by 6.2–7.0% over existing recommendations.
  compared with existing recommendations
Impact Assessment of ‘Bhoochetana’ – A Soil Test-Based Nutrient Management Scaling-Out Initiative in Karnataka · 2017
- positive
  Sunflower yield increased by 11% under IP
  compared with farmer practice (FP)
Response of Sunflower to Different N/P Fertilizer Ratios and Levels of Nitrogen and Phosphorus · 2017
- positive
  The N/P ratio of 1.40 with 126 kg N ha-1 and 90 kg P ha-1 gave higher economics than other N/P ratios.
  compared with other N/P fertilizer ratios with different nitrogen and phosphorus levels
- positive
  The N/P ratio of 1.40 with 126 kg N ha-1 and 90 kg P ha-1 gave higher head diameter, seed yield per plant and thousand seed weight than other N/P ratios.
  compared with other N/P fertilizer ratios with different nitrogen and phosphorus levels
- positive
  The N/P ratio of 1.40 with 126 kg N ha-1 and 90 kg P ha-1 gave higher plant height, stem girth and total dry matter production than other N/P ratios.
  compared with other N/P fertilizer ratios with different nitrogen and phosphorus levels
Performance of summer sunflower (Helianthus annuus L.) hybrids under different nutrient management practices in coastal Odisha · 2017
- positive
  The recommended fertilizer plus zinc sulfate treatment gave maximum stover yield of 4.88 t ha -1.
- positive
  The recommended fertilizer plus zinc sulfate treatment gave maximum seed yield of 2.17 t ha -1.
cites 1 paper here
Nitrogen and phosphorus fertilization of sunflower crop in alkaline Cambisol · 2018
- positive
  Sunflower yield increased with P2O5 dose.
Weather, Quality Parameters and Yield of Rainfed Sunflower (Helianthus annuus L.) under Integrated Nutrient Management in Alfisols · 2018
- positive
  Combined RDF and compost gave the maximum sunflower seed yield of 1859 kg ha-1.
  compared with absolute control
Identification of phosphorus use efficiency of different sunflower genotypes at Tandojam-Pakistan · 2018
- positive
  Higher phosphorus increased agronomic traits and yield parameters across genotypes.
cites 1 paper herecited by 1 paper here
Synergistic effect of Azotobacter and phosphate solublizing bacteria (PSB) inoculation on yield of Rabi sunflower under dryland conditions · 2018
- positive
  Combined inoculation and reduced fertilizer gave the highest seed yield.
- positive
  Combined liquid bacterial inoculation gave the highest 100-seed weight.
- positive
  Seventy-five percent recommended fertilizer gave higher 100-seed weight.
- positive
  Combined inoculation and reduced fertilizer gave the highest benefit-cost ratio.
- positive
  Combined liquid bacterial inoculation gave the highest seed yield.
- positive
  Seventy-five percent recommended fertilizer gave higher seed yield.
Dry Matter Production and Nutritional Status of Sunflower Grown in Nutrient Solution under Macronutrient Omission · 2018
- positive
  Omission of P limited sunflower dry mass relative to complete solution.
  compared with complete solutionAbout lacking this nutrient, so it counts the other way round
Influence of Phosphorus and Potassium Fertilization on Productivity and Quality of Sunflower in Sandy Soils · 2018
- positive
  Increasing phosphorus from 15 to 22.5 and 30 Kg P2O5/fad significantly increased head diameter, 100-seed weight and seeds per head.
  compared with 15
RESPONSE OF TWO SUNFLOWER (HELIANTHUS ANNUUS L.) GENOTYPES TO VA-MYCORRHIZAL INOCULATION AND PHOSPHORUS LEVELS · 2019
- positive
  Mycorrhizal plants produced more biomass and seed yield than nonmycorrhizal plants at the same phosphorus level.
  compared with non-mycorrhizal plants
- positive
  Mycorrhizal plants at 38 kg P2O5 ha -1 had more biomass, seed yield and P uptake than nonmycorrhizal plants at 75 kg P2O5 ha -1.
  compared with non-mycorrhizal plants at 75 kg P2O5 ha -1
Appropriate Nitrogen and Phosphorus Fertilizer Regime for Sunflower ( Helianthus Annuus L.) In the Humid Tropics · 2019
- positive
  N and P fertilizer, applied split or single, significantly increased sunflower grain yield over the control in both years.
  compared with Control
cites 1 paper here
Growth and yield of sunflower as influenced by VAM and phosphorus application · 2019
- positive
  P2O5 at 100 kg ha-1 gave maximum sunflower growth and yield among phosphorus levels.
  compared with various phosphorus levels
- positive
  VAM with P2O5 at 100 kg ha-1 gave maximum sunflower growth, yield attributes and yield of 2153 kgha-1.
  compared with treatment combinations
- negative
  No VAM with P2O5 at 25 kg ha-1 gave the lowest sunflower growth, yield attributes and yield.
  compared with treatment combinations
Sunflower performance as a function of phosphate fertilization in semiarid conditions · 2020
- positive
  Phosphorus doses increased sunflower production components.
cited by 1 paper here
PGPR for the management of sunflower major diseases of north eastern dry zone of Karnataka · 2020
- positive
  PGPR treatment gave the highest sunflower yield (1612 kg/ha) compared with other treatments in a field experiment.
  compared with other treatments
Growth and Yield Response of Sunflower to Organic Amendments in Aridisol · 2021
- positive
  The T6 amendment produced the maximum achene yield plant -1 in Hysun-33.
- positive
  The T6 amendment produced the maximum head size in Hysun-33.
cites 3 papers here
Effect of Bacterial Inoculation, Bacillus Megaterium, Vermicompost, and Phosphate Pock on Growth and Yield of sunflower (Helianthus annuus L.) · 2021
- positive
  Biological and organic inoculation with phosphate rock fertilizer at 100 kg/ha gave the highest sunflower total yield (2808) compared with the comparison treatment.
  compared with comparison treatment
Effect of Bio Phosphate Fertilizer and Triple Super Phosphate Application on Yield, Yield Components, Phosphorus and Cadmium Concentration of Sunflower (Helianthus annuus L.) Seeds · 2021
- positive
  100 kg.ha-1 triple superphosphate with 200 g.ha-1 biophosphorus fertilizer gave the highest head diameter and number of seeds per head in sunflower, compared with other treatments.
  compared with other treatments
INTEGRATED MANAGEMENT OF NP FERTILIZERS CAN BOOST THE GROWTH AND YIELD PERFORMANCE OF SUNFLOWER (HELIANTHUS ANNUS L.) · 2021
- positive
  Sunflower head diameter was maximum at 28.19 cm with 150-50 NP kg ha-1.
- positive
  Sunflower seed yield was maximum at 2172.00 kg ha-1 with 150-50 NP kg ha-1.
- positive
  Sunflower growth and seed yield increased with increasing NP fertilizer application up to 150-50 NP kg ha-1.
- positive
  Sunflower seed index was maximum at 90.33 g with 150-50 NP kg ha-1.
- negative
  Sunflower growth, yield and maturity parameters performed poorly in the control treatment with no NP fertilizer.
cites 1 paper here
Nutrient uptake, post-harvest soil nutrient status and economic returns from sunflower (Helianthus annuus L.) hybrids under different tillage and nutrient levels on lowland rice fallow environments of Odisha · 2021
- positive
  KBSH-44 under rice fallow zero tillage with 150% RDF had an economically superior B:C ratio of 2.34.
- positive
  KBSH-44 under rice fallow zero tillage with 150% RDF was economically superior in gross returns.
- positive
  KBSH-44 under rice fallow zero tillage with 150% RDF was economically superior in net returns.
THE EFFECTS OF BIOLOGICAL AND CHEMICAL FERTILIZER SOURCES ON THE PRODUCTION AND QUALITY OF SUNFLOWER · 2022
- positive
  Chemical N and P fertilizers significantly increased grain yield, thousand-grain weight and dry weight.
Effect of nutrient optimization on growth, yield and quality of sunflower under southern Odisha conditions · 2022
- positive
  The full NPKS treatment improved sunflower growth, yield, and yield attributes over the control.
  compared with control plot (T10)
Effect of planting distance on the production of full of and long grains with addition of NPK and organic acids characters and dates on yield sunflower (Helianthus annuus L.) · 2022
- positive
  Fertilizer level F2 exceeded other combinations for disc diameter, filled grains and 1000-grain weight.
- positive
  Fertilizer level F2 exceeded other combinations for harvest index and total grain yield.
Effects of Fertilizer Rate and Spacing on Growth and Seed Yield of Sunflower (Helianthus annuus L.) in Northwestern Amhara, Ethiopia · 2022
- positive
  The combined 23/23 kg/ha N and P2O5 rate with 75x30 cm spacing gave the highest net benefit in sunflower.
- positive
  The highest seed weight per head of sunflower was recorded at 69/69 kg/ha N and P2O5.
- positive
  The highest sunflower grain yield was recorded at 46/46 kg/ha N and P2O5.
- positive
  The highest thousand seed weight of sunflower was recorded at 69/69 kg/ha N and P2O5.
Influence of Phosphorus and Sulphur on Growth and Yield of Sunflower (Helianthus annuus L.) · 2023
- positive
  Treatment 9 had highest benefit cost ratio (2.02) relative to other treatments.
  compared with other treatments
- positive
  Phosphorus and sulphur treatment 9 produced higher seed yield (1.25 t/ha).
- positive
  Phosphorus and sulphur treatment 9 produced higher number of seeds/capitulum (412.00).
- positive
  Treatment 9 had maximum gross returns (83,440.00 INR/ha) relative to other treatments.
  compared with other treatments
- positive
  Phosphorus and sulphur treatment 9 produced higher Stalk yield (3.44 t/ha).
- positive
  Treatment 9 had higher net returns (55,851.25 INR/ha) relative to other treatments.
  compared with other treatments
cites 1 paper here
Effect of the growth and yield attributes of sunflower and chickpea with response to different doses and methods of Phosphorus Solubilizing Bacteria in combinationwith different Phosphorus levels · 2023
- positive
  Sunflower head diameter peaked at 16.23 cm with 75% P plus PSB at 6 kg/ha.
Effect of varied fertilizer levels on productivity and economics of sunflower based cropping systems · 2023
- positive
  At 100% RDF, net returns were higher at Rs. 57,082 ha-1.
- positive
  At 100% RDF, the benefit to cost ratio was higher at 1.94.
- positive
  At 100% RDF, sunflower equivalent yield was higher at 2054 kg ha-1.
- positive
  At 100% RDF, gross returns were higher at Rs.1,18,064 ha-1.
EFFECTS OF PHOSPHORUS LEVELS, PHOSPHATE SOLUBILIZING BACTERIA APPLICATIONS AT VARYING DOSES AND TECHNIQUES ON PLANT STAND, OIL CONTENT AND YIELD OF SUNFLOWER (HELIANTHUS ANNUS L.) · 2024
- positive
  Phosphorus at 67.5 kg ha -1 with soil-applied PSB at 6 kg ha -1 gave the highest sunflower seed yield, 23.79 q ha -1, over all other treatments.
  compared with all the other treatments
Effect of Enriching Vermicompost with Chemical and Biological Fertilizers on the Growth and Yield of Sunflower · 2024
- positive
  Vermicompost with urea and phosphate rock gave the highest weight of 100 seeds.
  compared with vermicompost without addition
Effect of biomass ash on yield and nutrient uptake of sunflower in vertisol · 2024
- positive
  With 50% water-soluble K through biomass briquette ash plus recommended N and P, sunflower number of seeds per capitulum reached a maximum of 533.47.
- positive
  With 50% water-soluble K through biomass briquette ash plus recommended N and P, sunflower 100-seed weight reached a maximum of 5.42 g.
- positive
  Straw yield with 50% water-soluble K through biomass briquette ash plus recommended N and P was 3.44% higher than the recommended NPK fertilizer dose.
  compared with recommended NPK fertilizer dose
- positive
  Seed yield of sunflower (maximum 19.63 q ha-1) with 50% water-soluble K through biomass briquette ash plus recommended N and P was 68.78% higher than absolute control.
  compared with absolute control
- positive
  Seed yield with 50% water-soluble K through biomass briquette ash plus recommended N and P was 0.82% higher than the recommended NPK fertilizer dose.
  compared with recommended NPK fertilizer dose
- positive
  Straw yield (maximum 34.58 q ha-1) with 50% water-soluble K through biomass briquette ash plus recommended N and P was 74.62% higher than absolute control.
  compared with absolute control
- positive
  With 50% water-soluble K through biomass briquette ash plus recommended N and P, sunflower capitulum yield reached a maximum of 31.80 q ha-1.
Physio-biochemical responses of three sunflower (Helianthus annuus L.) lines to phosphate solubilizing bacteria and phosphorous-enriched biochar in saline soils · 2024
- positive
  Integrated PSB and BC increased sunflower plant yield under salinity.
PECULIARITIES OF SUNFLOWER GROWTH AND DEVELOPMENT WHEN USING GROWTH-STIMULATING BIOLOGICAL PRODUCTS IN ITS CROPS · 2024
- positive
  Bionorm nitrogen plus Bionorm phosphorus gave a sunflower seed yield increase of 15.8%.
Optimising sunflower yields: insights from meta-analysis on fertilisation impact and planting strategies for enhanced crop productivity in China · 2025
- positive
  Phosphorus alone raised sunflower yield by 20.92%.

Papers reporting a negative result or no effect 2

A paper is on the positive side when any of its claims here is positive. Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.

phosphorus · Yield · Helianthus annuus (common sunflower)

Papers whose results differ, checked claim by claim 4

How these papers cite each other

Papers reporting a positive result 79

Papers reporting a negative result or no effect 2

phosphorus on Helianthus annuus (common sunflower) against other targets

phosphorus · yield on other organisms