T3 gave the highest tree height, shoot growth and fruit set.

nitrogen · yield · Citrus sinensis (sweet orange)Results differ

38 papers in the same direction as this claim · 8 in the opposite direction · 1 reporting no difference from an alternative

1. positive
   T11 produced significantly higher sweet orange yield in 2019 and 2020 and was at par with T10.

   Impact of Integrated Nutrient Management on Yield, Soil, and Plant Nutrient Status in Sweet Orange ( Citrus sinensis L.) cv. Phule Mosambi · 2024 · compared with T10

   Same directionCites this paper

2. negative
   Soil urea reduced fruit size.

   Aggregate Effects of Nutrients and Gibberellic Acid on ‘Valencia’ Orange Crop Value1 · 1973

   Opposite direction

3. no effect
   Urea did not alter the ringing effect on orange yield.

   Effects of Ringing on Yields of Low-Bearing Orange Trees(Citrus Sinensis(L.) Osbeck) · 1971

   Opposite direction

4. negative
   N application significantly decreased fruit weight and diameter of sweet orange.

   Effect of N and Zn on ^|^lsquo;Hamlin^|^rsquo; sweet orange (Citrus sinensis Osbeck) · 1981

   Opposite direction

5. no effect
   Increased nitrogen did not reduce salinity harm to fruit production.

   Quantum efficiency of photosystem II and production of orange under salt stress and nitrogen fertilization · 2016 · compared with 100 and 200% of recommendation

   Opposite direction

6. negative
   When N and P were applied together without K, a severe antagonism resulted, with a large yield decrease.

   Nitrogen, phosphorus, potassium interactions on valencia orange yields · 1990

   Opposite direction

7. negative
   A nitrogen level of 224 kg N ha−1 reduced fruit weight compared with other N levels.

   Comparative Response of Huanglongbing-Affected Sweet Orange Trees to Nitrogen and Zinc Fertilization under Microsprinkler Irrigation · 2020 · compared with other N levels

   Opposite direction

8. no effect
   Urea treatment did not significantly change the average yield of sweet orange trees compared with control.

   Response of Sweet Orange (Citrus Sinensis Osbeck.) Plants To Zinc, Urea and Dbcp. · 1974 · compared with control

   Opposite direction

39 papers more in this group

fertilization · yield · Citrus sinensis (sweet orange)Positive and negative results

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

1. positive
   T11 produced significantly higher sweet orange yield in 2019 and 2020 and was at par with T10.

   Impact of Integrated Nutrient Management on Yield, Soil, and Plant Nutrient Status in Sweet Orange ( Citrus sinensis L.) cv. Phule Mosambi · 2024 · compared with T10

   Same directionCites this paper

2. no effect
   No pruning or fertilization treatment significantly increased yield compared with unpruned controls.

   Assessment of Pruning and Controlled-release Fertilizer to Rejuvenate Huanglongbing-affected Sweet Orange · 2019 · compared with controls (0% pruning)

   Opposite direction

3. no effect
   Controlled-release fertilizer and water-soluble N fertilizer did not differ significantly in yields of young trees in year 3.

   Fertilization of Young `Hamlin' Orange Trees with Controlled-release Fertilizer · 1995 · compared with water-soluble N fertilizer

   Opposite direction

4. positive
   Fruit yield increased with increasing potassium fertilization.

   Sources and rates of potassium for sweet orange production · 2011

   Same direction

5. positive
   Combined potassium and organic fertilizer application increased fruit yield

   Effects of Combined Potassium and Organic Fertilizer Application on Newhall Navel Orange Nutrient Uptake, Yield, and Quality · 2021 · compared with potassium fertilizer alone

   Same direction

6. positive
   The number of fruits per tree increased from 426 to 554 with balanced NPK plus multi-micronutrient.

   Effect of multi-micronutrient on yield and quality attributes of the sweet orange · 2012

   Same direction

7. positive
   Higher fertilization increased total yield in years three and four.

   Effect of Citrus Red Mite (Acari: Tetranychidae) and Cultural Practices on Total Yield, Fruit Size, and Crop Value of ‘Navel’ Orange: Years 3 and 4 · 1992

   Same direction

8. positive
   Higher fertilisation levels of K with Zn increased medium and big fruit production in Valencia orange.

   Zn and K influence in fruit sizes of Valencia orange · 2005

   Same direction

47 papers more in this group

organic · yield · Citrus sinensis (sweet orange)Results agree

1 paper in the same direction as this claim

1. positive
   75% ETc irrigation with black polyethylene or rice straw and 3% kaolin gave the best fruit set and least fruit drop.

   Effect of Irrigation levels, Mulching and Kaolin on Yield and Fruit Quality of Washington Navel Orange Trees Grown in Clay Soil · 2023

   Same direction