Volume 17, Issue 2 (Journal of Soil and Plant Interactions 2026)
2026, 17(2): 23-39 |
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Jalil Shafagh-Kolvanagh *1 
, Fariborz Shekari2 , Abdullah Jawanmard2 , Mina Amani3 , Zohreh Saeli-Ashan4
, Fariborz Shekari2 , Abdullah Jawanmard2 , Mina Amani3 , Zohreh Saeli-Ashan4
1- Department of Plant Ecophysiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran , shafagh@tabrizu.ac.ir
2- Department of Production Engineering and Plant Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
3- Department of Horticultural Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
4- Department of Plant Ecophysiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
2- Department of Production Engineering and Plant Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
3- Department of Horticultural Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
4- Department of Plant Ecophysiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
Abstract: (254 Views)
Background and Objective: Considering the increasing role of intercropping in enhancing the sustainability of agricultural and medicinal systems, as well as its demonstrated capability in weed suppression, this research was conducted to evaluate the effects of intercropping on weed control and its impact on the agronomic traits and yield of canola, variety Shir-Ali, within a canola (Brassica napus L.) - safflower (Carthamus tinctorius L.) intercropping system.
Methods: A factorial experiment was designed using a randomized complete blocks design (RCBD) with 10 treatments and three replications during the 2020‒2021 cropinpg season in a farm in Maragheh, Iran. The first factor included weed control at two levels of complete weed control and no weed control. The second factor involved five intercropping ratios of pure cultivation of canola, optimal density of safflower (60 seeds/m2) + 50% optimal density of canola (40 seeds/m2), optimal density of safflower (60 seeds/m2) + 75% optimum density of canola (60 seeds/m2), mixed cultivation of 1:1 replacement of canola and safflower, and mixed cultivation of 2:1 replacement of canola and safflower.
Results: In canola, the highest biomass yield (i.e., 7990 kg per hectare) was observed in the pure canola treatment, while the highest seed yield was recorded in the pure canola treatment with weed control. All intercropping treatments had a higher land equivalent ratio compared to pure cultivation, except for the treatment of optimal density of safflower (60 seeds/m2) + 50% optimal density of canola (40 seeds/m2). Among all intercropping treatments, the highest land equivalent ratio (equal to 1.71) was associated with the 1:1 (canola - safflower) intercropping treatment with complete weed control. Furthermore, the highest total relative value (TRV) was attributed to the 1:1 (canola - safflower) intercropping treatment with complete weed control, yielding a value of 2.33.
Conclusion: The findings of this study demonstrate that intercropping patterns not only enhance canola performance but also improve weed management and optimize resource utilization.
Methods: A factorial experiment was designed using a randomized complete blocks design (RCBD) with 10 treatments and three replications during the 2020‒2021 cropinpg season in a farm in Maragheh, Iran. The first factor included weed control at two levels of complete weed control and no weed control. The second factor involved five intercropping ratios of pure cultivation of canola, optimal density of safflower (60 seeds/m2) + 50% optimal density of canola (40 seeds/m2), optimal density of safflower (60 seeds/m2) + 75% optimum density of canola (60 seeds/m2), mixed cultivation of 1:1 replacement of canola and safflower, and mixed cultivation of 2:1 replacement of canola and safflower.
Results: In canola, the highest biomass yield (i.e., 7990 kg per hectare) was observed in the pure canola treatment, while the highest seed yield was recorded in the pure canola treatment with weed control. All intercropping treatments had a higher land equivalent ratio compared to pure cultivation, except for the treatment of optimal density of safflower (60 seeds/m2) + 50% optimal density of canola (40 seeds/m2). Among all intercropping treatments, the highest land equivalent ratio (equal to 1.71) was associated with the 1:1 (canola - safflower) intercropping treatment with complete weed control. Furthermore, the highest total relative value (TRV) was attributed to the 1:1 (canola - safflower) intercropping treatment with complete weed control, yielding a value of 2.33.
Conclusion: The findings of this study demonstrate that intercropping patterns not only enhance canola performance but also improve weed management and optimize resource utilization.
Type of Article: Research |
Subject:
Plant growth under stressful conditions
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Journal of Soil and Plant Interactions by http://jspi.iut.ac.ir is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
