Combined humic acid and chelated iron increased broccoli yield 1.49 times.

iron atom · yield · Brassica oleracea (wild cabbage)Results agree

7 papers in the same direction as this claim

1. positive
   Without manganese or iron, cabbage dry weight decreased slightly.

   Growth response of cabbage plants to transition elements under water culture conditions · 1976

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

2. positive
   Nano iron spray increased total plant yield to 26.06 mg/kg H -1.

   The Role of Iron Nanoparticles and Humic Acid in Iron Concentration, Growth and Yield of Broccoli (Brassica Oleracea var Italic) · 2023

   Same direction

3. positive
   The combined Fe and Mg sprays significantly increased broccoli yield and components.

   Impact of foliar spraying with iron and magnesium on growth, yield, chemical constituents and storability of broccoli · 2014

   Same direction

4. positive
   The mNs T6 foliar treatment increased cabbage economic and biological yields over conventional and control treatments.

   Impact of Fortified Nano Zinc and Iron Composite Capsules on Growth, Yields and Nutrients Accumulation in Cabbage (Brassica oleracea var. capitata L.) and Cauliflower (Brassica oleracea var. botrytis L.) · 2022 · compared with conventional and Control

   Same direction

5. positive
   Treatment T18 produced maximum cabbage head diameter of 16.17 cm2.

   Response of foliar application of micronutrients and growth regulators on growth and yield attributes of Cabbage in a Vertisol of Central plain of C.G · 2021

   Same direction

6. positive
   The quadruple combination had the highest biomass yield, 75.44 Mg ha −1.

   Effect of Nano-Manganese, EM.Bokashi Fertilization and Spraying Nanoparticles of Iron and Carbon Nanotubes in Soil Sustainability, Enhancing Some Growth Parameters and Yield of Broccoli · 2025

   Same direction

7. positive
   Applied acid, phosphorus, iron and zinc significantly affected nutrient uptake, head diameter and yield.

   ROLE OF ACIDIFIED WATER, PHOSPHORUS, IRON AND ZINC LEVELS IN NUTRIENT UPTAKE OF P, Fe, Zn AND PRODUCTIVITY OF CABBAGE · 2025

   Same direction

Brassica oleracea var. italica · yield · Brassica oleracea (wild cabbage)Results agree

8 papers in the same direction as this claim

1. positive
   Rye interseeded at 0 DAT improved broccoli yields relative to unweeded controls.

   Weed suppression in a broccoli–winter rye intercropping system · 2004 · compared with unweeded controls

   Same direction

2. positive
   Broccoli intercropped with onion at 240 kg ha–1 nitrogen had the highest land equivalent ratio values.

   EFFECTS OF INTERCROPPING SYSTEM AND NITROGEN FERTILIZATION ON LAND EQUIVALENT RATIO, YIELD AND MINERAL CONTENT OF BROCCOLI · 2020

   Same direction

3. positive
   application of vermicompost coupled with single row spacing and sole crop of broccoli gave the maximum yield of sprouts per plant (407.6 g) among 30 combinations.

   Growth, yield and quality response of organic broccoli to intercrops and crop geometry · 2016 · compared with 30 treatment combinations

   Same direction

4. positive
   Fenugreek intercropping in single rows had the highest yield among intercrop treatments.

   Effect of intercropping, crop geometry and organic manures on growth and yield of broccoli (Brassica oleracea var italica) · 2017

   Same direction

5. positive
   Ganesh Broccoli had superior days to 50% harvest at 53.4days compared with PUSA KTS-1.

   Effect of different varieties and spacing on growth and yield parameters of broccoli (Brassica oleracea L. var. Italica Plenck) under Pune conditions. · 2011 · compared with cv. PUSA KTS-1

   Same direction

6. positive
   The sole crop of broccoli showed maximum growth and yield parameters compared with intercropping systems.

   Effect of nitrogen doses and inter crops on growth and yield of broccoli (Brassica oleracea L. var. italica) · 2018 · compared with intercropping systems

   Same direction

7. positive
   yield of sprouts/plant was maximal under vermicompost, single row spacing and sole broccoli, at 413.4 g.

   Effect of intercropping geometry inorganic-based cropping models of broccoli (Brassica oleracea var. italica). · 2016

   Same direction

8. positive
   Broccoli extract enhanced plant performance and water transport capacity of broccoli under both conditions.

   Brassica metabolite priming boosts growth and ion-water homeostasis under salt stress in broccoli · 2026 · compared with control

   Same direction

other · yield · Brassica oleracea (wild cabbage)Results differ

32 papers in the same direction as this claim · 4 in the opposite direction

1. positive
   Humic acid application at 0.25 gm/L gave superior broccoli total yield, at 8.215 tons ha-1.

   Role of Humic Acid and Chemical Fertilizer in NPK Concentration, Growth and Yield of Broccoli Under Salinity Conditions · 2021

   Same directionCited by this paper

2. no effect
   The lower seaweed application rate did not increase broccoli yield.

   Effect on yield, total phenolic, total flavonoid and total isothiocyanate content of two broccoli cultivars (Brassica oleraceae var italica) following the application of a commercial brown seaweed extract (Ascophyllum nodosum) · 2014

   Opposite direction

3. no effect
   Seaweed extracts did not significantly increase cabbage yield.

   Enhancement of phenolic and flavonoid compounds in cabbage (Brassica oleraceae) following application of commercial seaweed extracts of the brown seaweed, (Ascophyllum nodosum) · 2013

   Opposite direction

4. no effect
   Fine particle amendments had little effect on field cauliflower yield.

   Effects of textural amendment of coarse soils on crop growth and water use · 1980 · compared with unamended soil

   Opposite direction

5. negative
   Humic acid gave lower cabbage yield (57.53 Mg ha-1) than compound fertilizer in the second stage (106 days).

   The effect of adding compound fertilizer of NPK and Humic acid on the availability of NPK soil and cabbage yield · 2022 · compared with compound fertilizer

   Opposite direction

6. positive
   The combined full-dose treatment significantly increased head yield to 54.38 tonnes/ha over the half-dose treatment with Pseudomonas.

   Integrated effect of bio-organics with chemical fertilizer on growth, yield and quality of cabbage (Brassica oleracea var capitata) · 2014 · compared with 50% recommended dose of fertilizer with Pseudomonas fluorescens applied

   Same direction

7. positive
   Brussels sprouts dry matter yield increased significantly with annual farm compost in year four.

   Farm Compost Application: Effects on Crop Performance · 2012

   Same direction

8. positive
   Pseudomonas fluorescens alone or with humic acid gave considerable improvement in cabbage productivity and nutrient status.

   Enhancing Production Potential of Cabbage and Improves Soil Fertility Status of Indo-Gangetic Plain through Application of Bio-organics and Mineral Fertilizer · 2017

   Same direction

28 papers more in this group