B fertilizer improved rapeseed seed yield.

boron atom · yield · Brassica napus (oilseed rape)Results differ

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

1. positive
   Balanced N and B supply improved nutrient uptake, microbial stability and seed yield in rapeseed.

   The Interplay of Nitrogen and Boron in Rapeseed ( Brassica napus L.): Implications for Nutrient Uptake, Photosynthesis, and Rhizosphere Ecology · 2025

   Same directionCites this paper

2. negative
   Dry matter yields of oilseed rape grown at 0.025 and 5.0 μg B/mL were lower than at 0.5 μg B/mL.

   Interaction of silicon and boron in oilseed rape plants · 1994 · compared with containing 0.5 μg B/mL

   Opposite direction

3. no effect
   Boron fertilization had minimal effect on seed yield.

   Uptake and nutrient balance of nitrogen, sulfur, and boron for optimal canola production in eastern Canada · 2019

   Opposite direction

4. no effect
   Boron application produced no significant increase in canola seed yield in any of the 22 experiments.

   Canola response to boron in Canadian prairie soils · 2003

   Opposite direction

5. negative
   Boron application decreased average canola seed yield by 31%.

   STUDIES ON DIFFERENTIAL RESPONSE OF SPRING CANOLA CULTIVARS TO BORON TOXICITY · 2010 · compared with B moderate deficiency

   Opposite direction

6. no effect
   Foliar boron alone or with Mo or Mn had no effect on canola grain yield.

   FOLIAR SPRAY EXPERIMENTS IDENTIFY NO BORON DEFICIENCY BUT MOLYBDENUM AND MANGANESE DEFICIENCY FOR CANOLA GRAIN PRODUCTION ON ACIDIFIED SANDY GRAVEL SOILS IN SOUTHWESTERN AUSTRALIA · 2011

   Opposite direction

7. negative
   Two foliar boron sprays applied at five different growth stages slightly decreased root yield of rutabaga.

   EFFECTS OF FOLIAR SPRAYS OF BORON APPLIED AT DIFFERENT STAGES OF GROWTH ON INCIDENCE OF BROWN-HEART IN RUTABAGAS · 1987

   Opposite direction

8. negative
   Excess boron fertilizer decreased rape seed yield in boron deficient soil.

   Application Effect of Granubor and Solubor in Rape · 2012

   Opposite direction

46 papers more in this group

borax · yield · Brassica napus (oilseed rape)Positive and negative results

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

1. no effect
   Foliar boron alone or with Mo or Mn had no effect on canola grain yield.

   FOLIAR SPRAY EXPERIMENTS IDENTIFY NO BORON DEFICIENCY BUT MOLYBDENUM AND MANGANESE DEFICIENCY FOR CANOLA GRAIN PRODUCTION ON ACIDIFIED SANDY GRAVEL SOILS IN SOUTHWESTERN AUSTRALIA · 2011

   Opposite direction

2. negative
   Borax drilled at sowing decreased canola seed yield at nine of 34 farm sites.

   Risks of Boron Toxicity in Canola and Lupin by Forms of Boron Application in Acid Sands of South-Western Australia · 2014

   Opposite direction

3. positive
   Under boron deficiency, plant performance ranked borax above boric acid, ulexite, and colemanite or zinc borate.

   Borax Promotes Fertility of Brassica napus Better Than Other Boron Species at Suboptimal Supply · 2025 · compared with boric acid

   Same direction

4. positive
   Application of 120.0 kg/hm2 K2O and 15.0 kg/hm2 borax gave the highest economic benefit.

   Study on the Effect of Combined Application of Potassium and Boron on Yield of Brassica napus · 2009

   Same direction

5. positive
   Specialized fertilizer I increased rape yield by 23.5% over local conventional fertilization.

   Application of Different Specialized Fertilizers in Rape(Brassica napus L.) · 2011 · compared with local conventional fertilizering method

   Same direction

fertilization · yield · Brassica napus (oilseed rape)Positive and negative results

336 papers in the same direction as this claim · 37 in the opposite direction · 4 reporting no difference from an alternative

1. positive
   N fertilization increased oilseed rape grain yield by 109–160%.

   Nitrogen Fertilizer Management for Enhancing Crop Productivity and Nitrogen Use Efficiency in a Rice-Oilseed Rape Rotation System in China · 2016 · compared with RO1

   Same directionCited by this paper

2. negative
   The authors concluded that N fertiliser could not compensate for the yield reduction in canola and wheat due to late sowing.

   Effects of sowing time and nitrogen fertiliser on canola and wheat, and nitrogen fertiliser on Indian mustard. I. Dry matter production, grain yield, and yield components · 2001

   Opposite direction

3. no effect
   Incorporation timing of feedlot cattle manure had no impact on soil or crop performance.

   Effect of rate, frequency and incorporation of feedlot cattle manure on soil nitrogen availability, crop performance and nitrogen use efficiency in east-central Saskatchewan · 2004

   Opposite direction

4. no effect
   Fertilizer timing had little effect on crop yield.

   Combining agronomic practices and herbicides improves weed management in wheat–canola rotations within zero-tillage production systems · 2005

   Opposite direction

5. no effect
   Nutrient applications were unnecessary to raise canola yield in fertile fields.

   Effects of Manure and Fertilizer Applications on Canola Oil Content and Fatty Acid Composition · 2010

   Opposite direction

6. no effect
   The HI-S:total S ratio was not affected by nitrogen fertilizer application at normal field rates in a growth chamber study.

   USE OF PLANT ANALYSIS TO PREDICT SULFUR DEFICIENCY IN RAPESEED (Brassica napus and B. campestris) · 1983

   Opposite direction

7. no effect
   Increasing nitrogen fertilizer did not affect peaola yield.

   Increasing Biodiversity and Land-Use Efficiency Through Pea (Pisum aestivum)-Canola (Brassica napus) Intercropping (Peaola) · 2022

   Opposite direction

8. negative
   Reducing nitrogen fertilizer decreased two-year mean rapeseed yield by 11.67%–31.67% relative to N100.

   Effects of Biochar Combined with Nitrogen Fertilizer Reduction on Rapeseed Yield and Soil Aggregate Stability in Upland of Purple Soils · 2019 · compared with N100

   Opposite direction

369 papers more in this group