The combined nutrient treatment gave maximum alfalfa plant height at 30 days after sowing.

Rhizobium · growth · Medicago sativa (alfalfa)Positive and negative results

6 papers in the same direction as this claim · 1 in the opposite direction

1. no effect
   Rhizobium inoculation alone did not elicit an alfalfa growth response.

   Dual Inoculation with an Arbuscular Mycorrhizal Fungus andRhizobiumto Facilitate the Growth of Alfalfa on Coal Mine Substrates · 2009

   Opposite direction

2. positive
   GM Rhizobium inoculation increased root branching and lateral roots.

   Effect of a genetically modified Rhizobium meliloti inoculant on the development of arbuscular mycorrhizas, root morphology, nutrient uptake and biomass accumulation in Medicago sativa · 1996

   Same direction

3. positive
   Rhizobium inoculation, seed-applied or pre-inoculated, significantly increased alfalfa nodule dry matter at both sites.

   Field comparison of pre-inoculated alfalfa seed and traditional seed inoculation with inoculant prepared in sterile or non-sterile peat · 2001

   Same direction

4. positive
   XJ83073 inoculation increased alfalfa fresh weight by 13.7%–65.2% over control.

   Development and Application of Rhizobium Strains Agents for Alfalfa(Medicago sativa Linn.) in Beijing Region · 2007 · compared with the control

   Same direction

5. positive
   Rhizobium inoculation increased alfalfa plant height by 14.6%.

   The Study of the Alfalfa Cultivation Experiment in the Artificial Grass,Western Jilin · 2012

   Same direction

6. positive
   50 % RDF + 25 % N through vermicompost + Rhizobium + PSB + VAM gave maximum alfalfa plant height of 43.12 cm at 30 DAS.

   Effect of integrated nutrient management on growth, herb yield and quality of alfalfa duringRabi season under central dry zone of Karnataka · 2018

   Same direction

7. positive
   The combined nutrient treatment produced the highest lucerne plant height of 79.27 cm.

   Effect of nutrient management in Lucerne (Medicogo sativa) under Melia dubia based silvipasture system · 2025

   Same direction

fertilization · growth · Medicago sativa (alfalfa)Results differ

70 papers in the same direction as this claim · 17 in the opposite direction · 1 reporting no difference from an alternative

1. negative
   Alfalfa dry weight under MSW was 7.09% below mineral fertilizer.

   Compost Organic Amendments in Fodder Crops: Effects on Yield, Nitrogen Utilization and Soil Characteristics · 2006 · compared with mineral fertilizer

   Opposite direction

2. no effect
   Low manure had no significant effect on herbage dry matter yield or N accumulation.

   Dairy Manure Applications to Alfalfa: Crop Response, Soil Nitrate, and Nitrate in Soil Water · 1994

   Opposite direction

3. no effect
   N fertilization did not affect root biomass, number of crown buds or total root N in alfalfa, irrespective of sowing date.

   Influence of summer sowing dates, N fertilization and irrigation on autumn VSP accumulation and dynamics of spring regrowth in alfalfa (Medicago sativa L.) · 2002

   Opposite direction

4. no effect
   Phosphorus fertilization did not affect grass to legume biomass ratio.

   Mycorrhizal Effects on Interspecific Plant Competition and Nitrogen Transfer in Legume‐Grass Mixtures · 1992

   Opposite direction

5. no effect
   Fertilizer material and rate had no effect on alfalfa dry weight.

   GREENHOUSE EVALUATION OF FOUR BORON FERTILIZER MATERIALS · 2001

   Opposite direction

6. no effect
   Fertilized and unfertilized alfalfa had no significant difference in comparable part dry weights except one leaf segment.

   YIELDS AND ELEMENTAL COMPOSITION OF ALFALFA PLANT PARTS AT LATE BUD UNDER TWO FERTILITY LEVELS · 1975 · compared with unfertilized

   Opposite direction

7. no effect
   Four-year dry matter yield averaged 74.9 Mg ha−1 with no differences among K rates.

   Alfalfa Yield Components and Soil Potassium Depletion as Affected by Potassium Fertilization · 2012

   Opposite direction

8. no effect
   N fertilization did not affect root biomass, number of crown buds or total root N in alfalfa.

   Influence of summer sowing dates, N fertilization and irrigation on autumn VSP accumulation and dynamics of spring regrowth in alfalfa ( Medicago sativa L.) · 2002

   Opposite direction

80 papers more in this group

mycorrhiza · growth · Medicago sativa (alfalfa)Positive and negative results

34 papers in the same direction as this claim · 2 in the opposite direction

1. negative
   Low AMF reduced shoot biomass without competition.

   Arbuscular mycorrhizal fungi alter plant allometry and biomass–density relationships · 2010 · compared with high AMF

   Opposite direction

2. no effect
   Inoculation with arbuscular mycorrhizal fungi had no significant effect on alfalfa shoot compared with non-inoculated control

   Study of arbuscular mycorrhzizal fungi on decomposition of alfalfa litter · 2009 · compared with non-inoculated control

   Opposite direction

3. positive
   Under elevated CO2, mycorrhizal alfalfa had improved leaf, stem and root biomass relative to non-mycorrhizal plants.

   Changes in alfalfa forage quality and stem carbohydrates induced by arbuscular mycorrhizal fungi and elevated atmospheric CO₂ · 2013 · compared with non-mycorrhizal alfalfa

   Same direction

4. positive
   Co-inoculation with AMF improved Medicago sativa growth.

   Effect of combined microbes on plant tolerance to Zn–Pb contaminations · 2015

   Same direction

5. positive
   Mycorrhizal inoculation reduced the grass to legume dry mass ratio.

   Mycorrhizal Effects on Interspecific Plant Competition and Nitrogen Transfer in Legume‐Grass Mixtures · 1992

   Same direction

6. positive
   Plants receiving both lime and mycorrhiza had increased top and combined top and root growth.

   Effects of rhizobium, arbuscular mycorrhiza and lime on nodulation, growth and nutrient uptake of lucerne in acid purplish soil in China · 2010

   Same direction

7. positive
   Combined inoculation yielded higher aboveground biomass than other treatments.

   Response of arbuscular mycorrhizal fungi and phosphorus solubilizing bacteria to remediation abandoned solid waste of coal mine · 2019 · compared with other treatments

   Same direction

8. positive
   Alfalfa shoot dry weight increased 712% under intercropping and co-inoculation.

   Intercropping with alfalfa and co-inoculation of AMF and PGPR improve growth, yield, grain bioactive quality, and soil fertility of barley · 2023 · compared with the controls

   Same direction

28 papers more in this group