Higher fertilization significantly increased ears per square metre by 26.

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,114 papers in the same direction as this claim · 284 in the opposite direction · 39 reporting no difference from an alternative

1. positive
   At 80-60-60 kg NPK ha, tillers were maximal at 330.

   Phenology, leaf area index and grain yield of rainfed wheat influenced by organic and inorganic fertilizer. · 2010

   Same directionCited by this paper

2. positive
   Higher NPK increased ears, thousand grain weight and grain yield relative to the lower dose.

   Response of spring wheat to different soil and foliar fertilization · 2017 · compared with lower dose

   Same directionCites this paper

3. positive
   Calcium micronized foliar fertilizer raised grain yield 44.5% versus standard NPK.

   Effects of different fertilizer treatments on grain yield and yield components of spring wheat · 2018 · compared with control (standard NPK fertilization)

   Same directionCites this paper

4. positive
   Sulphur fertilization caused a significant increase in wheat grain yield compared with NPK alone in the third year.

   The influence of mineral fertilization on the yield and content of selected macro and microelements in spring wheat. · 2010 · compared with the treatment where solely nitrogen, phosphorus and potassium was used

   Same directionCited by this paper

5. no effect
   Current high nitrogen practices do not significantly raise crop yields relative to optimum fertilization.

   Reducing environmental risk by improving N management in intensive Chinese agricultural systems · 2009 · compared with knowledge-based optimum N fertilization

   Opposite direction

6. negative
   Wheat yield declined by 0.04 Mg ha −1 yr −1 with 75 and 100% N-P-K fertilizer.

   Yield and Soil Nutrient Changes in a Long‐Term Rice‐Wheat Rotation in India · 2002

   Opposite direction

7. 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

8. negative
   Genetic gain in winter wheat yield without fertiliser N was 0.021 t ha −1 y −1, smaller than at 215–250 kg/ha N.

   Responses of grain yield, biomass and harvest index and their rates of genetic progress to nitrogen availability in ten winter wheat varieties · 2006 · compared with 215–250 kg/ha N

   Opposite direction

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