Foliar seaweed extract and iron and zinc increased peach seedling height, diameter and branch number versus water control.

zinc atom · yield · Prunus persica (peach)Positive and negative results

2 papers in the same direction as this claim · 1 in the opposite direction

1. negative
   Tsukuba-1 leaf dry matter production declined under high soil zinc.

   Peach rootstock tolerance to excess zinc in sandy acidic soil · 2018

   Opposite direction

2. positive
   Peach fruit length, diameter and yield were maximum under T6.

   Effect of Foliar Application of Micronutrients on Fruit Quality of Peach · 2014

   Same direction

3. positive
   fruit set reached a maximum of 28.2% under combined Spirulina and zinc treatment.

   Improving Peach Fruit Yield and Quality Using Foliar Application of Nano Chelated Zinc and Seaweed Extract ( Spirulina platensis ): A Multivariate Analysis Approach · 2026

   Same direction

iron atom · yield · Prunus persica (peach)Results agree

7 papers in the same direction as this claim

1. positive
   Iron deficiency decreased fruit number per tree in both peach cultivars.

   Effects of Fe Deficiency Chlorosis on Yield and Fruit Quality in Peach (Prunus persica L. Batsch) · 2003

   Same directionAbout lacking this nutrient, so it counts the other way round

2. positive
   Iron correction doubled peach fruit size.

   Prognosis and correction of iron chlorosis in peach trees: Influence on fruit quality · 1997 · compared with Fe-deficient trees

   Same direction

3. positive
   Peach fruit length, diameter and yield were maximum under T6.

   Effect of Foliar Application of Micronutrients on Fruit Quality of Peach · 2014

   Same direction

4. positive
   The treatments increased fruit set and yield per tree relative to control.

   Reducing Adverse Effects of Salinity in Peach Trees Grown in Saline Clay Soil · 2017 · compared with control

   Same direction

5. positive
   At 14 g Fe per tree, FeEDDHA increased Redhaven peach size and yield.

   Iron Chlorosis and Mineral Content of ‘Fay Alberta’, ‘Shippers Late Red’ and ‘Redhaven’ Peach Trees as Affected by Iron Chelates1 · 1978

   Same direction

6. positive
   Both Fe chelate rates increased shoot growth, fruit size and fruit yield.

   An Attempt to Overcome Iron-Induced Manganese Deficiency in ‘July Elberta’ Peach Trees with Manganese Chelate1 · 1975

   Same direction

7. positive
   The highest yield and fruit weight were with 0.2% Fe-EDTA foliar application (99.85 and 104.40 kg/tree in two seasons) versus control (36.87 and 37.38 kg/tree).

   Effect of Foliar Application With some Micronutrients on ‘Florida Prince’ Cultivar Peach Tree · 2019 · compared with the control

   Same direction

application · yield · Prunus persica (peach)Positive and negative results

30 papers in the same direction as this claim · 8 in the opposite direction

1. no effect
   The combined soil and foliar N treatment maintained yields equal to soil fertilization alone.

   Can We Approach Complete Dependence on Foliar-applied Urea Nitrogen in an Early-maturing Peach? · 2001 · compared with soil-fertilized control

   Opposite direction

2. no effect
   The fourth (final) peach harvest was not delayed by any AVG spray.

   Peach and Nectarine Fruit Softening Following Aminoethoxyvinylglycine Sprays and Dips · 1997

   Opposite direction

3. no effect
   Multiple commercial calcium foliar sprays did not affect fruit flesh calcium concentration at harvest.

   Influence of In-Season Foliar Calcium Sprays onFruit Quality and Surface Discoloration Incidence of Peaches andNectarines · 2000

   Opposite direction

4. negative
   Ethrel sprays within a month of full bloom significantly reduced fruit size for at least two months.

   Thinning Peaches with Bloom and Postbloom Applications of 2-Chloroethylphosphonic Acid1 · 1971

   Opposite direction

5. negative
   Water injection after seed puncture caused all fruit to abscise.

   Gibberellin Inhibits Fruit Abscission Following Seed Abortion in Peach · 1990

   Opposite direction

6. no effect
   Foliage sprays of CGA 15281 with the fruit protected had no effect on fruit or leaf abscission of peach.

   Peach Fruit and Leaf Tissue Sensitivity to CGA 152811 · 1982

   Opposite direction

7. no effect
   Number of leaves per shoot, yield and fruit flesh thickness of peach were not significantly affected by mepiquat chloride foliar application at any concentration in both seasons.

   EFFECT OF IRRIGATION LEVELS AND SPRAYING MEPIQUAT CHLORIDE ON GROWTH AND PRODUCTIVITY OF PEACH TREES · 2019

   Opposite direction

8. no effect
   Double Tergitol gave similar fruit set to a single 15 mL spray.

   Branched Secondary Alcohol Ethoxylate, Ammonium Thiosulfate, Calcium Polysulfides-Thiosulfate, and Fish Oil Effects on Blossom Thinning, Fruit Set and Quality of Peaches and Nectarines · 2020

   Opposite direction

30 papers more in this group