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Comparative evaluation of conventional and vermicompost fertilizers on broccoli (Brassica oleracea L.) in different agroecological zones

Open Access
|Oct 2025

Figures & Tables

Figure 1.

Coordinates of experimental sites and map images of Adiyaman and Pozantı locations, respectively.
Coordinates of experimental sites and map images of Adiyaman and Pozantı locations, respectively.

Effect of vermicompost and conventional manure applications on vitamin C, total phenolic and colour parameters in the cultivation of ‘Orantes’ F1 and ‘Robredo’ F1 cultivars in different locations

Quality parametersFertilizersCultivars/locations/applications
AdiyamanPozanti
OrantesRobredoOrantesRobredo
First yearSecond yearFirst yearSecond yearFirst yearSecond yearFirst yearSecond year
Vitamin C (mg · 100 g−1)Vermicompost1044.93 c974.46 c1249.06 b1257.83 ab115.00 f212.33 d113.66 f145.00 d
Conventional fertilizer1392.13 a1128.93 bc951.60 d1418.53 a172.33 e195.00 d112.66 f188.66 d
LSD0.05 = 18.62 for first year***; NS for second year
Total phenolic (mg · 100 g−1)Vermicompost364.46 b315.82 a323.67 b347.72 a155.61 c116.64 bc136.64 c108.45 c
Conventional fertilizer434.11 a358.48 a331.81 b311.51 a163.05 c165.61 b136.64 c156.38 bc
LSD0.05 = NS for first year; LSD0.05 = NS for second year
Colour parameter chroma |(C)Vermicompost125.96 ab127.23 b126.37 ab130.62 b92.37 d100.99 d95.98 d100.23 d
Conventional fertilizer129.85 a128.71 b120.71 b145.84 a99.51 cd106.35 c106.35 c110.31 c
LSD0.05 = NS for first year; LSD0.05 = NS for second year
Colour parameter (h°)Vermicompost8.84 cd10.93 b7.40 de8.96 c9.71 bc10.32 bc12.51 a10.37 bc
Conventional fertilizer4.52 f9.41 c6.65 ef3.79 d5.54 ef9.08 c11.50 ab12.77 a
LSD0.05 = NS for first year; LSD0.05 = NS for second year

Effects of vermicompost and conventional fertilization on nutrient elements in the cultivation of Orantes and Robredo cultivars in different locations_

Plant nutrient contentsFertilizersVarieties/locations/applications
AdiyamanPozanti
OrantesRobredoOrantesRobredo
First yearSecond yearFirst yearSecond yearFirst yearSecond yearFirst yearSecond year
N (%)Vermicompost5.50 c5.50 b***3.97 e5.08 c4.04 e4.15 e5.48 c5.11 bc
Conventional fertilizer6.36 b6.53 a4.42 de5.44 bc4.82 d4.65 d7.04 a6.74 a
LSD0.05 = NS for first year; LSD0.05 = 0.36 for second year***
K (%)Vermicompost26707.98 b27862.72 d18859.24 c31279.59 b29355.80 a34739.57 a27619.04 ab35887.03 a
Conventional fertilizer20646.86 c28125.41 cd28129.27 ab30425.45 bcd26089.09 b31067.29 bc29746.07 a31508.28 b
LSD0.05 = 2485.77 for first year***; LSD0.05 = NS for second year
Fe (ppm)Vermicompost44426.70 ef82800.23 b34616.82 f65180.09 b79345.11 c64633.04 b120686.83 a115300.63 b
Conventional fertilizer55665.12 de66258.16 b53745.76 e311217.72 a69281.08 cd55887.57 b101680.64 b116183.29 b
LSD0.05 = NS for first year; LSD0.05 = NS for second year
Zn (ppm)Vermicompost39989.98 bc34187.30 b33587.70 cd28548.90 c38632.63 bc37312.20 b51124.68 ab52323.36 a
Conventional fertilizer35845.47 cd27718.59 c23872.60 d34083.73 b46698.52 abc26375.05 c58923.15 a51639.39 a
LSD0.05 = NS for first year; LSD0.05 = NS for second year
Mn (ppm)Vermicompost2052.54 ef22682.51 b18749.85 f20686.95 b32497.24 b23819.90 b36774.72 a29095.14 a
Conventional fertilizer19278.51 f217551.14 b22441.96 e22217.85 b25842.62 d23447.35 b28358.24 c24896.91 ab
LSD0.05 = 2315.69 for first year**; LSD0.05 = NS for second year

Effects of vermicompost and conventional fertilizer applications on head width-height (cm) and SPAD reading in the cultivation of ‘Orantes’ F1 and ‘Robredo’ F1 broccoli cultivars in different locations_

Plant growth parametersFertilizersCultivars/locations/applications
AdiyamanPozanti
OrantesRobredoOrantesRobredo
First yearSecond yearFirst yearSecond yearFirst yearSecond yearFirst yearSecond year
Head width (cm)VermicompostConventional fertilizer8.96 e12.10 b12.06 ab12.96 a9.90 d11.63 bc11.66 b12.53 ab10.95 c12.16 b12.66 ab12.72 ab13.01 a13.74 a13.05 a12.79 a
LSD0.05 = NS for first year; LSD0.05 = NS for second year
Head height (cm)VermicompostConventional fertilizer12.10 e14.20 abc14.26 a14.83 a11.83 e13.23 d13.86 a14.50 a14.01 bcd13.40 cd14.42 a13.97 a14.76 ab14.87 a14.47 a14.74 a
LSD0.05 = NS for first year; LSD0.05 = NS for second year
SPAD readingVermicompostConventional fertilizer55.20 e69.73 d82.96 a61.76 e73.33 c69.40 d74.10 c73.90 c79.48 b85.72 a77.22 bc81.76 a71.86 cd78.92 b69.76 d80.85 ab
LSD0.05 = 0.79 for first year***; LSD0.05 = 1.15 for second year**

Climate data for Adıyaman and Pozantı during broccoli cultivation in 2022–2023_

YearLocationAverage temperature (°C)Average humidity (%)Total rainfall (mm)*
2022Pozantı11.7855.92186
Adıyaman18.0746.22456
2023Pozantı12.3258.60155
Adıyaman18.9045.62609

Soil analysis of Adıyaman and Pozantı locations_

ParametersAdıyamanPozantı
TextureClayClay-loam
CaCO3 (%)2.056.85
pH7.607.43
EC (μS · cm−1)1158.00.045
Organic matter (%)1.421.07
P (kg · ha−1)14.0118.5
K2O (kg · ha−1)51.2642.42
Fe (mg · kg−1)5.54.9
Zn (mg · kg−1)8.05.8
Cu (mg · kg−1)5.23.6
Mn (mg · kg−1)10.31.5

Yield parameters of vermicompost and conventional fertilizer applications in the cultivation of ‘Orantes’ F1 and ‘Robredo’ F1 broccoli cultivars in different locations_

Plant yield parametersFertilizersCultivars/locations/applications
AdiyamanPozanti
OrantesRobredoOrantesRobredo
First yearSecond yearFirst yearSecond yearFirst yearSecond yearFirst yearSecond year
Average head weight (g · plot−1)VermicompostConventional fertilizer110.70 c133.79 c190.63 de216.58 cde185.71 b201.17 b238.09 bc376.85 a202.50 b303.66 a232.61 bcd336.50 a195.66 b212.50 b187.00 e272.33 b
LSD0.05 = NS for first year; LSD0.05 = 42.91 for second year**
Total yield (kg · plot−1)VermicompostConventional fertilizer1.69 cd2.01 bc1.96 ab1.87 ab2.54 ab2.82 a2.14 ab2.37 a1.21 cd2.59 ab0.90 c2.60 a1.73 cd1.74 cd1.38 bc1.85 ab
LSD0.05 = 0.63 for first year*; LSD0.05 = NS for second year
Yieldt (kg · da−1)VermicomposttConventional fertilizer753.88 de893.55 cd873.92 b831.71 bc1130.17 b1256.43 ab953.31 b1054.35 ab683.97 e1403.74 a1327.65 a531.68 c948.43 c912.56 c788.61 bc1035.31 ab
LSD0.05 = 149.43 for first year***; LSD0.05 = 334.33 for second year*
DOI: https://doi.org/10.2478/fhort-2025-0006 | Journal eISSN: 2083-5965 | Journal ISSN: 0867-1761
Language: English
Page range: 65 - 77
Submitted on: Feb 10, 2025
Accepted on: Apr 28, 2025
Published on: Oct 14, 2025
Published by: Polish Society for Horticultural Sciences (PSHS)
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2025 Aygül Dayan, Ceren Ayşe Bayram, published by Polish Society for Horticultural Sciences (PSHS)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.