RDF plus 18 kg/ha zinc sulphate and 4 kg/ha boric acid gave the significantly highest residual effect on French bean growth.

zinc sulfate · growth · Phaseolus vulgaris (common bean)Results differ

5 papers in the same direction as this claim · 3 in the opposite direction

1. negative
   At 5000 mg L–1, ZnSO4 reduced seedling weight to 6.05 ± 0.08 g.

   Effects of ZnO Nanoparticles on Phaseolus vulgaris Germination and Seedling Development Determined by X-ray Spectroscopy · 2018

   Opposite direction

2. negative
   ZnSO 4 reduced bean growth at 50 mg L −1.

   The inclusion of engineered ZnO nanoparticles and bulk ZnSO₄ in the growth medium distinctively modulate the root and leaf metabolome in bean plants · 2023

   Opposite direction

3. negative
   Fresh and dry weights and relative growth rate were significantly reduced in bean at 200-1200 mM ZnSO4.

   EFFECT OF SEQUENTIAL CONCENTRATIONS OF ZINC AND ITS COMBINATION WITH CALCIUM OR GLUTATHIONE ON THE GROWTH, WATER RELATIONS AND ANATOMY OF ROOTS, STEMS AND LEAVES OF PHASEOLUS VULGARIS CV. CONTENDER · 2019

   Opposite direction

4. positive
   ZnSO4 foliar application significantly increased green bean biomass accumulation to 79.10 g per plant.

   Zinc sulphate or zinc nanoparticle applications to leaves of green beans · 2021

   Same direction

5. positive
   ZnSO4-treated plants had significantly greater dry weight than MnSO4-treated plants in the lab.

   Zinc and manganese effect seed quality and germination in common bean(Phaseolus vulgaris L.) · 2024 · compared with MnSO4

   Same direction

6. positive
   In hydroponic bean, 50 µm zinc sulphate significantly boosted leaf area.

   ORIGINAL ARTICLE Study Different Levels of Zinc Sulphate (ZnSO4) on Fresh and Dry Weight, Leaf Area, Relative Water Content and Total Protein in Bean (Phaseolus vulgaris L.) Plant · 2014

   Same direction

7. positive
   field emergence was maximum (92.00%) with seed pelleting with ZnSO4, borax, Capton and Imidacloprid, compared with control.

   Influence of Seed Pelleting on Crop Performance and Seed Yield in French Bean (Phaseolus vulgaris L.) cv. Arka Anoop · 2017 · compared with control

   Same direction

8. positive
   Combined zinc and iron treatment maximized dry weight.

   Responses of Phaseolus vulgaris towards Zinc and Iron Management in Soil with respect to Growth, Pigments and Protein Contents · 2023

   Same direction

zinc atom · growth · Phaseolus vulgaris (common bean)Results differ

18 papers in the same direction as this claim · 6 in the opposite direction

1. negative
   Trifoliate leaf dry weight was depressed by 43 percent under zinc.

   ADDITIVE, PROTECTIVE, AND SYNERGISTIC EFFECTS ON PLANTS WITH EXCESS TRACE ELEMENTS · 1982

   Opposite direction

2. negative
   Carbonic anhydrase per unit leaf area was dramatically decreased at 0.005 and 0.05 ppm zinc compared with 0.2 ppm zinc.

   Reduction in Carbonic Anhydrase Activity in Zinc Deficient Leaves of Phaseolus vulgaris L.¹ · 1973 · compared with 0.2 ppm zinc

   Opposite direction

3. negative
   Zinc application reduced common bean root dry weight.

   MICRONUTRIENTS' INFLUENCE ON ROOT GROWTH OF UPLAND RICE, COMMON BEAN, CORN, WHEAT, AND SOYBEAN · 2002

   Opposite direction

4. negative
   Beans growth was more affected by Zn and Cu than maize growth.

   Germination and Survival of Maize and Beans Seeds: Effects of Irrigation with NaCl and Heavy Metals Contaminated Water · 2022 · compared with maize

   Opposite direction

5. no effect
   No visible effects on green bean growth were observed.

   Effect of zinc on the growth and uptake of zinc by green beans · 1994

   Opposite direction

6. negative
   Under low Zn conditions, leaf area of cv. Jamapa decreased.

   Specific Changes in Leaf Characteristics of Two Bean Genotypes as Affected by Zn Efficiency · 2009

   Opposite direction

7. positive
   Zinc combined with phosphorus significantly affected dry matter yield.

   THE MECHANISM OF PHOSPHORUS-INDUCED ZINC DEFICIENCY IN BEAN (Phaseolus vulgaris L.) · 1988

   Same direction

8. positive
   Zinc absence blocked grana-fretwork development and produced large vacuoles.

   The Fine Structure of Chloroplasts from Mineral-Deficient Leaves of Phaseolus vulgaris · 1962

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

16 papers more in this group

boron atom · growth · Phaseolus vulgaris (common bean)Positive and negative results

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

1. negative
   A boron waste at 600 ppm or above decreased root and shoot lengths and fresh and dry weights of bean (Phaseolus vulgaris L.) seedlings.

   The Effects on Germination and Growth of Bean and Chickpea of Boron Waste · 2013

   Opposite direction

2. no effect
   Increasing boron concentrations did not affect germination variables.

   Botanical and physiological parameters response of black bean (Phaseolus vulgaris L.) cultivars under increasing boron concentrations · 2023

   Opposite direction

3. positive
   Supplied IAA and boron deficiency together restricted root growth more than either deficiency or IAA treatment alone.

   The Role of Boron in Plant Growth: IV. INTERRELATIONSHIPS BETWEEN BORON AND INDOL-3YL-ACETIC ACID IN THE METABOLISM OF BEAN RADICLES · 1968 · compared with either deficiency or IAA treatment separately

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

4. positive
   Boron had a improved effect on common bean root dry weight.

   MICRONUTRIENTS' INFLUENCE ON ROOT GROWTH OF UPLAND RICE, COMMON BEAN, CORN, WHEAT, AND SOYBEAN · 2002

   Same direction

5. positive
   Boron-deficient bean roots contained about half the phosphorus per dry weight of controls.

   Boron Nutrition and Acid-soluble Phosphorus Compounds in Bean Roots1 · 1974 · compared with control

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

6. positive
   Applying 120 kg/ha nitrogen with 1.5 kg/ha boron significantly increased French bean plant height to 23.68 cm.

   Influence of Nitrogen and Boron on Growth and Yield of French Bean · 2023

   Same direction

7. positive
   Boron deficit inhibited stem growth apex growth.

   Patologiczne zmiany budowy morfologicznej pędu oraz anatomiczno-histologiczne u; łodydze fasoli (Phaseolus vulgaris L.) spowodowane brakiem boru w pożywce [Morphopathological and anatomohistalogical changes in bean shoots due to boron deficiency in the nutrient medium] · 2015

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

8. positive
   Zinc 45 kg/ha-1 with boron 0.5% gives significantly higher plant height (44.00 cm) than control.

   Influence of Zinc and Boron Application on Growth and Yield of French bean (Phaseolus vulgaris L.) · 2023 · compared with control

   Same direction

1 paper more in this group