phosphorus · Growth · Vigna unguiculata (cowpea)

Cowpea (Vigna unguiculata (L) Walp.) Performance and yield as influenced by soil types and phosphorus fertilizer in two alfisols at Ado-Ekiti, south-West, Nigeria. · 1970

• positive
  Phosphorus application significantly affected cowpea vine length, with a maximum of 97.4cm.
• positive
  Phosphorus application significantly affected cowpea number of leaves, with a maximum of 26.

Responses of Cowpeas to Applications of P and Fe in Calcareous Soils¹ · 1978

• positive
  Best growth occurred with 50 or 100 ppm P in each soil.

EFFECT OF SOME SOURCES OF PHOSPHORUS FERTILIZER ON THE GROWTH AND YIELD OF COWPEA PLANT · 2000

• positive
  Increasing super-phosphate up to 300 kg/fed. increased fresh and dry plant weight.
• positive
  Combined 300 kg/fed. chemical phosphorus and 21 g/kg phosphorine produced maximum fresh and dry weight.
• positive
  Increasing super-phosphate up to 300 kg/fed. increased plant length, leaves, and shoots.

PHOSPHORUS FERTILIZATION AND FOLIAR SPRAY WITH “GREENZIT” ON COWPEA YIELD AND QUALITY · 2000

• positive
  plant height increased significantly with 60 kg P2O5 / fed. and three Greenzit sprays in cowpea.

Response of vegetable cowpea to P, K and Rhizobium inoculation under Andaman condition · 2001

• positive
  The 120 kg P, 120 kg K and 20 kg N/ha plus Rhizobium treatment maximized root length, shell fresh weight and pod length.

Influence of phosphorus supply on two cowpea varieties grown on an acidic Alumi-Haplic-Acrisol · 2007

• positive
  At 31 days, phosphorus limitation affected both cowpea cultivars without a developmental difference.

  About lacking this nutrient, so it counts the other way round

Phosphor Rate for Vegetable Grown in the Ultisol - Nanggung, Bogor, Indonesia · 2007

• positive
  P fertilizer up to 180 kg P2O5 ha-1 increased plant height of yard long bean linearly.

Growth and mineral nutrition responses of mycorrhizal and non-mycorrhizal cowpea, pigeon pea and groundnut to phosphorus sources of different solubilities · 2008

• positive
  Superphosphate-treated cowpea and pigeon pea plants were larger than rock phosphate-treated plants, whether mycorrhizal or not.

  compared with RP-treated plants

Organic acids in the rhizosphere and root characteristics of soybean (Glycine max) and cowpea (Vigna unguiculata) in relation to phosphorus uptake in poor savanna soils · 2008

• positive
  Phosphorus application significantly improved cowpea growth.

Response of Cowpea (Vigna Unguiculata) Varieties and Varying Levels of Phosphorus on Va-Mycorrhizal (Glomus Fasciculatum) Colonization and Nutrient Uptake · 2009

• positive
  Phosphorus at 600 mg per pot supported better growth than 400 mg per pot with mycorrhizae.

  compared with 400 mg per pot

Profit Margin Analysis Of The Response Of Cowpea (Vigna unguiculata) To Phosphorus Fertilizer And Poultry Manure In Ovonum, Obubra, Cross River State, Nigeria · 2009

• positive
  Fresh cowpea weight under phosphorus fertilizer was 5.25kg, versus 1.80kg under poultry droppings.

  compared with poultry droppings

Effects of phosphate rock application on dry matter yield and phosphorus recovery of maize and cowpea grown in sequence · 2010

• positive
  Single super phosphate gave a higher total biomass than phosphate rocks in maize and cowpea.

  compared with phosphate rocks (PR)

cited by 1 paper here

Bio-activation of rock phosphate vis- a- vis seed treatment with phosphorus solubilizing microbes (PSM) in enhancing P nutrition in cowpea and ragi · 2010

• positive
  B. megaterium bioactivated rock phosphate gave higher cowpea total phosphorus content and biomass.

Effect of phosphorous stress on photosynthesis rate and root physiological characteristic of cowpea seedlings · 2010

• positive
  Phosphorus deficiency reduced cowpea shoot dry mass accumulation.

  About lacking this nutrient, so it counts the other way round

• positive
  Phosphorus deficiency markedly lowered cowpea dry mass.

  About lacking this nutrient, so it counts the other way round

• positive
  No-phosphorus culture reduced cowpea leaf area.

  About lacking this nutrient, so it counts the other way round

• no effect
  Phosphorus deficiency had almost no effect on cowpea root dry mass accumulation.

  About lacking this nutrient, so it counts the other way round

Phosphorus Response Efficiency in Cowpea Genotypes · 2011

• positive
  Phosphorus application significantly enhanced shoot and root dry weight and total biomass of cowpea genotypes.

cited by 2 papers here

ENRICHMENT OF PHOSPHORUS FOR COWPEA (Vigna unguiculata L. Walp.) UNDER CALCAREOUS SOIL CONDITIONS AT EL-ARISH REGION · 2013

• positive
  Most growth parameters improved with lower soil phosphorus and foliar phosphorus.

cites 2 papers here

Phosphate Solubilization by Several Genera of Saprophytic Fungi and Its Influence on Corn and Cowpea Growth · 2014

• positive
  The two phosphate-solubilizing strains promoted greater cowpea root growth than the controls FSA115, HPins and LPs, to a level similar to the HPs control.

  compared with controls FSA115, HPins and LPs

Influence of Seed Rate and Fertilizer Levels on Dry Matter Distribution and Dry Matter Yield of Fodder Cowpea (cv. Swad) · 2014

• positive
  A fertilizer level of 25 kg N and 50 kg P2O5 ha−1 gave significantly higher dry weights of leaves, stem and total plant at 40 DAS and harvest.

Optimum seed rate and fertilizer level for the production of quality fodder cowpea · 2014

• positive
  Combined 50 kg seed and 25 kg N plus 50 kg P2O5 ha−1 gave higher dry matter of 5.52 t ha−1.

  compared with all other treatment combinations

• positive
  Fertilizer at 25 kg N and 50 kg P2O5 ha−1 produced significantly higher dry matter of 5.35 t ha−1.

  compared with other fertilizer levels

NODULATION AND BIOMASS YIELD RESPONSE OF COWPEA TO ROW SPACING AND PHOSPHORUS FERTILIZER APPLICATION IN THE GUINEA SAVANNA AGRO-ECOLOGICAL ZONE OF GHANA · 2015

• positive
  The reported wider spacing and phosphorus treatment increased shoot and root dry biomass significantly.

  compared with row spacing of 40 cm x 20 cm and P level of 0 kgha-1

Growth and Yield Responses of Cowpea to Inoculation and Phosphorus Fertilization in Different Environments · 2017

• positive
  Phosphorus increased cowpea shoot dry weight and shoot and grain nitrogen content across locations.

cited by 2 papers here

Effects of seed biopriming under different levels of nitrogen and phosphorus on crop growth and nodulation of cowpea (Vigna unguiculata) · 2017

• positive
  T6 recorded significantly higher plant height at 23.4 cm.
• positive
  T6 recorded significantly higher number of trifoliate leaves per plant at 3.8.

Effects of Rhizobium, PSB Inoculation and Phosphorus Management on Soil Nutrient Status and Performance of Cowpea in Acid Soil of Arunachal Pradesh, India · 2017

• positive
  Dual inoculation with P2O5 fertilizer significantly increased plant biomass of cowpea.
• positive
  Dual inoculation with P2O5 fertilizer significantly increased plant height, number of green leaves and branching of cowpea.

Evaluation of New Cultivars of Fodder Cowpea in Terms of Growth Attributes and Seed Yield as Influenced by Various Doses and Varieties · 2017

• positive
  Phosphorus at 80 kg P2O5/ha improved vegetative growth of cowpea.

Integrated Effect of Foliar Fertilization of Fe, Zn and Rates of P Fertilization on Growth and Yield of Cowpea · 2017

• positive
  P fertilisation significantly increased vegetative growth of cowpea.

Responses of Cowpea Genotypes to Indigenous Rock Phosphate Application · 2018

• positive
  Sixteen of 28 cowpea genotypes showed a low rate of decrease of shoot dry weight under Togolese RP at 171 mg P per kg compared with 30 mg P per kg.

  compared with 30 mg P kg −1

cited by 1 paper here

Morphophysiological biometry and grain production in cowpea under different phosphorus levels · 2018

• positive
  Increasing phosphorus doses increased stem diameter, main branch length and leaf area of cowpea.
• positive
  Increasing phosphorus doses increased shoot dry matter of cowpea.

Yield of Cowpea Genotypes Inoculated With Bradyrhizobium and Azospirillum brasilense in Association With Phosphate Fertilization in Amazonian Soil · 2018

• positive
  Inoculation with Bradyrhizobium sp. with 120 kg ha-1 of P2O5 phosphate fertilization was sufficient to promote maximum growth and development of cowpea.

Effect of dual inoculation of salt tolerant Rhizobium and PSB in cowpea · 2018

• positive
  The Rhizobium (RHB5) x PSB4 combination significantly increased germination percentage of cowpea over the absolute control.

  compared with absolute control

Growth, gas exchange and photochemical efficiency of the cowpea bean under salt stress and phosphorus fertilization · 2019

• positive
  The highest simple superphosphate dose increased cowpea growth, especially in reproduction.

Efficiency in the use of phosphorus by cowpea genotypes · 2019

• positive
  Increasing P levels increased dry mass and plant P accumulation in cowpea genotypes

Influence of Phosphorus forms on Growth and Yield of Cowpea, Kales and Amaranth Vegetable Species · 2019

• positive
  Phosphorus application significantly increased vegetable growth parameters over control.

  compared with control

• positive
  TSP gave the highest shoot fresh weight, 236.8 g.
• positive
  TSP gave the highest root dry weight, 11.2 g.
• positive
  TSP gave the highest leaf area, 1905.0 cm2.

Effect of Organic and Inorganic Nutrient Sources on Growth, Yield, Nutrient Uptake and Economics of Fodder Cowpea [Vigna unguiculata (L.) Walp.] · 2020

• positive
  T6 produced significantly higher primary branches (6.1) in fodder cowpea or postharvest soil.
• positive
  T6 produced significantly higher CGR (8.13 g m-2 day-1) in fodder cowpea or postharvest soil.
• positive
  T6 produced significantly higher plant height (204.6 cm) in fodder cowpea or postharvest soil.
• positive
  T6 produced significantly higher root length (24.47 cm) in fodder cowpea or postharvest soil.
• positive
  T6 produced significantly higher RGR (4.68 g g-1 day-1) in fodder cowpea or postharvest soil.

Combined Application of Inoculant, Phosphorus and Potassium Enhances Cowpea Yield in Savanna Soils · 2020

• positive
  Inoculant followed by P and K fertilizer was effective for cowpea growth in field conditions.

cites 1 paper here

Evaluation of lignin waste as potential carriers for phosphate solubilizing bio-fertilizers: A zero waste technology · 2021

• positive
  Lignin phosphate-solubilizing biofertilizers increased Vigna unguiculata growth.

Effect of biofertilizers and phosphorus on growth parameters and yield of Cowpea (Vigna unguiculata (L.) Walp.) in sandy loam soil of Prayagraj · 2021

• positive
  Dual inoculation plus phosphorus gave plant height of 81.09 cm, a significant increase.
• positive
  The treatment gave plant dry weight of 30.43 g/plant, a significant increase.
• positive
  The treatment gave crop growth rate of 12.59 g/m2/plant, a significant increase.

Growth and Yield of Cowpea as Influenced by Different Phosphorus Levels · 2021

• positive
  Phosphorus at 90 kg ha-1 gave the highest leaf area index (6.67)

Effect of phosphorus application on the performance of some cowpea lines · 2021

• positive
  Phosphorus application increased plant height, leaf area and shoot dry weight in all genotypes.

cites 2 papers here

Carbon–Phosphorus Coupling Governs Microbial Effects on Nutrient Acquisition Strategies by Four Crops · 2022

• positive
  High phosphorus stimulated cowpea root elongation and carboxylate exudation in straw soil.

Influence of Phosphorus and Potassium in Combination with Biofertilizers on Growth of Cowpea [Vigna unguiculata (L.) Walp] · 2023

• positive
  The combined fertilizer and bacterial inoculation treatment maximized cowpea plant height at 86.18 cm.

The Effect of Phosphorus and Molybdenum on Growth and Yield of Cowpea (Vigna unguiculata L.) · 2023

• positive
  Treatment 9 increased crop growth rate to 18.87 g/m2/day.
• positive
  Treatment 9 increased plant dry weight to 23.07 g/plant.
• positive
  Treatment 9 (P 50 kg/ha + Mo 2 kg/ha) significantly increased plant height to 73.43 cm.

Impact of Phosphorus Levels and Spacing on Growth, Yield and Development of Cowpea (Vigna unguiculata L. Walp.) · 2023

• positive
  The 50 kg/ha phosphorus and 30 cm spacing treatment had the highest plant dry weight (16.47 g).

  compared with other treatments

• positive
  The 50 kg/ha phosphorus and 30 cm spacing treatment had the highest plant height (60.3 cm).

  compared with other treatments

cited by 1 paper here

Influence of Phosphorus and Gibberelic Acid on Growth and Yield of Cowpea (Vigna unguiculata L.) · 2023

• positive
  The 60 kg/ha phosphorus and 150 ppm gibberelic acid treatment gave the highest plant height.

  compared with control

• positive
  The 60 kg/ha phosphorus and 150 ppm gibberelic acid treatment gave the highest plant dry weight.

  compared with control

Assessment of the effects of NPK fertilizer on edible yield and agro-biological parameters in a cowpea–amaranth intercrop · 2023

• positive
  Cowpea biomass increased as NPK fertilizer rose to 100%.

Growth Analysis and Response Studies in Cowpea [Vigna unguiculata (l.) Walp] under the Influence of PROM and Phosphatic Inoculants · 2023

• positive
  PROM equivalent to 40 kg P2O5/ha improved cowpea CGR during 0 - 25 DAS over preceding levels.

  compared with preceding levels

• positive
  PROM equivalent to 40 kg P2O5/ha improved cowpea leaf area index over preceding levels.

  compared with preceding levels

Influence of Phosphorus and Foliar Application of Iron and Zinc on Growth and yield of Cowpea (Vigna unguiculata L.) · 2023

• positive
  Treatment 9 produced increased plant dry mass (17.66 g/plant) than other treatments.

  compared with different treatments

• positive
  Treatment 9 produced increased crop growth rate (5.97 g/m2/day) than other treatments.

  compared with different treatments

• positive
  Treatment 9 produced increased plant height (75.57 cm) than other treatments.

  compared with different treatments

Effect of different levels of phosphorus and sulphur on growth and yield of cowpea (Vigna sinensis) Cv. Pusa Phalguni · 2023

• positive
  The reported phosphorus treatment gave leaf area of 17.55 dm2.

Effect of bio-fertilizer and phosphorus on growth and yield of cowpea · 2024

• positive
  The treatment raised cowpea relative growth rate to 0.005 g/g/day.
• positive
  The treatment raised cowpea crop growth rate to 8.28 g/m2/day.
• positive
  Rhizobium plus phosphorus produced the highest cowpea plant height, 59.27 cm.
• positive
  The treatment raised cowpea dry weight to 65.87g.

Impact of Phosphorus and Plant Growth Substances on the Agronomic Traits of Cowpea (Vigna unguiculata L.) · 2025

• positive
  Phosphorus at 40 kg/ha with brassinolide at 50 ppm gave the highest plant height (71.77 cm) among treatments.
• positive
  Phosphorus at 40 kg/ha with brassinolide at 50 ppm gave the highest plant dry weight (35.52 g).

EFFECT OF BIO-FERTILIZERS AND PHOSPHORUS ON GROWTH AND YIELD OF ZAID COWPEA (VIGNA UNGUICULATA L.) · 2025

• positive
  Application of PSB with 40 kg/ha phosphorus (Treatment 8) recorded higher plant dry weight (11.57g) in zaid cowpea.
• positive
  Application of PSB with 40 kg/ha phosphorus (Treatment 8) recorded higher plant height (52.10 cm) in zaid cowpea.

INFLUENCE OF ORGANIC, PHOSPHATE FERTILIZATION AND SPRAYING OF L-GLUTAMIC ACID ON GROWTH AND YIELD OF COWPEA · 2026

• positive
  The combined treatment significantly improved leaf number, plant height, and leaf area.
• positive
  The combined treatment significantly improved dry biomass.

Response of Different Phosphorus Levels on Growth and Yield of Different Vegetable Cowpea [Vigna unguiculata (L.) Walp] Under Semi-arid Conditions of Rajasthan, India · 2026

• positive
  Phosphorus at 40 kg/ha gave maximum plant height and leaf area, statistically at par with 60 kg/ha.

  compared with phosphorus @ 60 kg/ha

• positive
  Phosphorus at 40 kg/ha gave maximum leaf area.