Unfilled grains per panicle were maximum (12.67) with 24-day-old seedlings plus 60% of the recommended nitrogen dose in rice.

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

242 papers in the same direction as this claim · 1,802 in the opposite direction

1. positive
   Grain yield increased linearly with nitrogen rate from 0 to 220 kg ha-1.

   Effects of Nitrogen Levels on Growth, Yield And Nitrogen use Efficiency Of Some Newly Released Egyptian Rice Genotypes · 2018

   Opposite directionCited by this paper

2. positive
   Application of 200 kg N ha-1 gave the highest yield attributing characters of rice variety BPT 2782-Bhavathi.

   Effect of nitrogen levels on growth, yield, nitrogen uptake and economics of rice variety BPT 2782- Bhavathi · 2021

   Opposite directionCited by this paper

3. positive
   SPAD-triggered 90 kg N ha −1 produced rice yields equivalent to the 120 kg N ha −1 split application.

   Chlorophyll Meter– and Leaf Color Chart–Based Nitrogen Management for Rice and Wheat in Northwestern India · 2002 · compared with 120 kg N ha −1 applied in three splits

   Opposite direction

4. positive
   Increasing nitrogen rate raised yield and yield components quadratically.

   YIELD AND YIELD COMPONENTS OF UPLAND RICE AS INFLUENCED BY NITROGEN SOURCES · 2011

   Opposite direction

5. positive
   CRU at 200 kg N ha −1 produced 3 to 5.9% more grain than urea at 300 kg N ha −1.

   Controlled Release Urea Improved Nitrogen Use Efficiency, Activities of Leaf Enzymes, and Rice Yield · 2012 · compared with urea at 300 kg N ha −1

   Opposite direction

6. positive
   LCC-based N management gave 19 to 31% higher net returns than fixed-time N application in rice-wheat cropping.

   Calibrating the Leaf Color Chart for Nitrogen Management in Different Genotypes of Rice and Wheat in a Systems Perspective · 2004 · compared with fixed‐time N application

   Opposite direction

7. positive
   Nitrogen fertilizer application at flowering often increased rough rice yield of IR cultivars.

   Effects of Late Nitrogen Fertilizer Application on Head Rice Yield, Protein Content, and Grain Quality of Rice · 1996

   Opposite direction

8. positive
   N fertilizer application increased grain numbers per panicle by 31.4% in rice.

   Nitrogen, phosphorus, and potassium fertilization affects the flowering time of rice (Oryza sativa L.) · 2019

   Opposite direction

2,036 papers more in this group