Agricultural management of weeds and evaluation index of mixed cropping of Safflower (Carthamus tinctorius L.) and Canola (Brassica napus L.)

Document Type : Research Paper

Authors

1 university of Tabriz

2 Professor of the Department of Plant Genetics and Production Engineering, Crop Physiology Department, Maragheh University of Basic Sciences, Maragheh, Iran.

3 Associate Professor, Department of Production Engineering and Plant Genetics, Crop Ecology, Faculty of Agriculture, Maragheh University, Maragheh, Iran.

4 Student

5 Master of Physiology of Crop Plants, Department of Plant Ecophysiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.

6 Ph.D. student of Crop Physiology, Department of Plant Ecophysiology, Faculty of Agriculture, Tabriz University, Tabriz, Iran.

10.22034/saps.2024.58399.3115

Abstract

Background & Objective: The objective of this research was to investigate the potential of weed control and to investigate the evaluation index of mixed cultivation of safflower and canola.
Methods & Materials: The experiment was conducted as a factorial in the form of a randomized complete block design with 3 replications. The first factor includes weed control at two levels (complete control of weeds and no weed control) and the second factor includes different patterns of mixed cropping at 4 levels including: mixed cropping replacing safflower and canola, respectively, with ratios of 1:1 and 2:1 and mixed cultivation of safflower and canola with ratios of 100:50, 100:75 and pure cultivation of safflower and canola were considered.
Results: The highest relative value belonged to the 1:1 replacement mixed crop treatment with complete weed control (2.33). According to the results, among the different planting patterns, the highest seed yield was obtained in pure cultivation and complete weed control, so that there is no significant difference with other planting patterns of 1:1 replacement mixture (safflower-canola).
Conclusion: The evaluation of mixed cropping treatments using the index of land equivalent ratio, and weed control efficiency showed that mixed cropping patterns are superior to pure cultivation from the point of view of production and economic value. Also, yield and yield components in safflower were affected by safflower pure cultivation and weed control treatment.

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