Combined RDF with S, Zn and B application significantly increased plant height, tiller number and green leaf number per hill of rice.

fertilization · yield · Oryza sativa (rice)Positive and negative results

3,182 papers in the same direction as this claim · 207 in the opposite direction · 65 reporting no difference from an alternative

1. positive
   Increasing NPK raised yield attributing characters in both crops.

   Application of crop residues in combination with chemical fertilizers for sustain able productivity in rice (Oryza sativa) wheat (Triticum aestivum) system · 2001

   Same directionCited by this paper

2. positive
   Inorganic fertilizer yielded 2% more rice grain than the best integrated treatment.

   Integrated nutrient management in rice (Oryza sativa) · 2001 · compared with 75% RDN through inorganic fertilizer and 25% N through carpet waste + cow dung slurry + Pleurotus sajor + Azotobacter + PSB + Trichoderma + enriched with S and Zn

   Same directionCited by this paper

3. 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

4. no effect
   CRFs had no effect on crop yield.

   Effect of Enhanced Efficiency Fertilizers on Nitrous Oxide Emissions and Crop Yields: A Meta‐analysis · 2016

   Opposite direction

5. negative
   The authors found fertilizer and irrigation investment had limited effects on rice production.

   Moving toward rice self-sufficiency in sub-Saharan Africa by 2030: Lessons learned from 10 years of the Coalition for African Rice Development · 2021

   Opposite direction

6. negative
   Green manure and rice straw nitrogen, alone or in combination with inorganic N, gave lower grain yield, agronomic efficiency and apparent nitrogen uptake than a standard split application of prilled urea.

   Long-term Comparison of the Agronomic Efficiency and Residual Benefits of Organic and Inorganic Nitrogen Sources for Tropical Lowland Rice · 1996 · compared with a standard split application of prilled urea

   Opposite direction

7. negative
   Without P fertilization, rice produced no panicles or grain.

   Nitrogen, Phosphorus and Potassium Interactions in Upland Rice · 2014

   Opposite direction

8. negative
   Broadcast and split prilled urea left 11 to 35% of applied nitrogen unrecovered at harvest.

   Nitrogen‐15 Balance and Residual Effects of Urea‐N in Wetland Rice Fields as Affected by Deep Placement Techniques · 1984

   Opposite direction

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