Azotobacter with mycorrhizae and fertilizer attained the highest phosphorus uptake, 21.5 Kg ha−1.

Azotobacter · nutrient: content · Allium cepa (onion)Results agree

1 paper in the same direction as this claim

1. positive
   T6 maximized nutrient uptake in onion across both seasons.

   Effect of different sources of nutrients, organic manures and biofertilizers on growth, yield, and nutrient uptake of kharif onion (Allium cepa L.) · 2016 · compared with Control (T1)

   Same direction

fertilization · nutrient: content · Allium cepa (onion)Positive and negative results

80 papers in the same direction as this claim · 9 in the opposite direction

1. no effect
   Compost application showed no significant change in soil Pb, Cr and Mn.

   Effect of agro industrial wastes compost on soil health and onion yields improvements: study at field condition · 2019

   Opposite direction

2. no effect
   Irrigation and fertilization had little effect on plant total N concentration.

   Effect of Drip Irrigation and Fertilization Timing and Rate on Yield of Onion · 2003

   Opposite direction

3. negative
   Lettuce, onion and carrot seedlings in compost had lower potassium percentage than in sand.

   Growth and Mineral Composition of Vegetable Seedlings · 1964 · compared with sand culture

   Opposite direction

4. negative
   Fertilizer systems increased bulb nitrate content.

   Influence of the fertiliser system on the soil nutrient regime and onion productivity · 2022

   Opposite direction

5. no effect
   Farmyard manure had little effect on exchangeable soil calcium and magnesium.

   Soil potassium and the growth of vegetable seedlings. II.—Effect of potassium and ammonium salts on the growth and composition of seedlings · 1965

   Opposite direction

6. no effect
   Different levels of nitrogen and vermicompost had no significant effect on total P and K contents in soil.

   Integrated effect of vermicompost and nitrogen fertilizers on soil nutrient status and yield of onion-radish cropping system · 2011

   Opposite direction

7. no effect
   Foliar fertilization had very little effect on onion leaf nitrogen concentration.

   FOLIAR NITROGEN EFFECTS ON ONION PRODUCTION AND DAMAGE BY THRIPS AND PURPLE BLOTCH · 1990

   Opposite direction

8. negative
   Excessive nitrogen and sulfur increased nitrate accumulation in onion.

   Effect of Nitrogen and Sulfur Fertilizer on Yield and Quality in Onion · 2008

   Opposite direction

81 papers more in this group

mycorrhiza · nutrient: content · Allium cepa (onion)Results agree

15 papers in the same direction as this claim

1. positive
   Mycorrhizal onion plants took up more phosphorus than non-mycorrhizal plants.

   PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA III. INCREASED UPTAKE OF LABILE P FROM SOIL · 1972 · compared with non‐mycorrhizal plants

   Same direction

2. positive
   Mycorrhizal onion had greater total uptake of P, Ca, Mg, Na, K, Zn, and Fe at intermediate salinity.

   Influence of Mycorrhizal Fungi on the Mineral Nutrition and Yield of Onion in Saline Soil¹ · 1983 · compared with nonmycorrhizal plants

   Same direction

3. positive
   AMF increased bulb selenium content by 530%.

   Effect of Selenium Biofortification and Beneficial Microorganism Inoculation on Yield, Quality and Antioxidant Properties of Shallot Bulbs · 2019

   Same direction

4. positive
   Inoculation with the selected isolates and/or AMF significantly increased N, P, K and S concentrations in rhizosphere soil at 60 and 90 days from planting.

   Effect of dual inoculation with arbuscular mycorrhizal fungi and sulphur-oxidising bacteria on onion (Allium cepa L.) and maize (Zea mays L.) grown in sandy soil under green house conditions · 2014

   Same direction

5. positive
   AMF plus selenium gave the highest onion bulb Mg accumulation.

   Effects of Arbuscular Mycorrhizal Fungi on Yield, Biochemical Characteristics, and Elemental Composition of Garlic and Onion under Selenium Supply · 2020

   Same direction

6. positive
   AMF inoculation with phosphorus fertilizer increased P concentration in onion roots, shoots and bulbs.

   Use of mycorrhizal fungi and phosphorus fertilization to improve the yield of onion (Allium cepa L.) plant · 2021

   Same direction

7. positive
   AMF inoculation buffered microplastic effects on nutrient availability and plant uptake.

   Effects of microplastics on crop nutrition in fertile soils and interaction with arbuscular mycorrhizal fungi · 2021 · compared with MP

   Same direction

8. positive
   AM inoculation increased onion shoot P content by 67% compared with controls.

   Arbuscular mycorrhizal fungi and Trichoderma viride cooperative effect on biochemical, mineral content, and protein pattern of onion plants · 2020 · compared with controlled ones

   Same direction

7 papers more in this group