To determine effects of intercropping broccoli with onion and their correspondence to different nitrogen concentrations on growth, yield and nutrient contents, field studies were conducted for two years. In intercropping plots, onion sets were planted between broccoli rows. Broccoli and onion plants were also grown as monocrops. Nitrogen was applied at three different rates (160, 200 and 240 kg ha–1) in both mono and intercrop plots of broccoli. The overall efficiency of intercropping was evaluated by employing land equivalent ratios (LERs). Cropping systems significantly did not affect chlorophyll reading value, yield and other parameters observed. However, nitrogen application rate had significant effect on these parameters. The highest values of these parameters were generally observed in 240 kg ha–1 nitrogen application. Macro and microelement content of broccoli leaves was affected neither by cropping systems nor by nitrogen fertilization except for N, Mn, Zn and NO3. Intercropping increased plant height but decreased the plant diameter of onion. There wasn’t significant decrease in plant weight of intercropped onion at 240 kg ha–1 nitrogen treatment when compared to monocropping. Broccoli intercropped with onion at 240 kg ha–1 nitrogen had the highest LER values, showing that intercropping practice could be more productive than monocropping especially in case of 240 kg ha–1 nitrogen application.


intercropping; nitrogen fertilization; broccoli; onion; yield; land equivalent ratios (LERs)

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Published : 2020-06-29

Yildirim, E., Cil, B., Ekinci, M., Turan, M., Dursun, A., Gunes, A., Kul, R., & Kitir, N. (2020). EFFECTS OF INTERCROPPING SYSTEM AND NITROGEN FERTILIZATION ON LAND EQUIVALENT RATIO, YIELD AND MINERAL CONTENT OF BROCCOLI. Acta Scientiarum Polonorum Hortorum Cultus, 19(3), 101-109. https://doi.org/10.24326/asphc.2020.3.9

Ertan Yildirim 
Atatürk University, Agriculture Faculty, Department of Horticulture, Erzurum, Turkey  Turkey
Büsra Cil 
Atatürk University, Agriculture Faculty, Department of Horticulture, Erzurum, Turkey  Turkey
Melek Ekinci 
Atatürk University, Agriculture Faculty, Department of Horticulture, Erzurum, Turke  Turkey
Metin Turan 
Yeditepe University, Engineering Faculty, Department of Genetics and Bioengineering, Istanbul, Turkey  Turkey
Atilla Dursun 
Atatürk University, Agriculture Faculty, Department of Horticulture, Erzurum, Turkey  Turkey
Adem Gunes 
Erciyes University, Agriculture Faculty, Department of Soil Science and Plant Nutrition, Kayseri, Turkey  Turkey
Raziye Kul  raziye.kul@atauni.edu.tr
Atatürk University, Agriculture Faculty, Department of Horticulture, Erzurum, Turkey  Turkey
Nurgul Kitir 
Yeditepe University, Engineering Faculty, Department of Genetics and Bioengineering, Istanbul, Turkey  Turkey

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