Document Type : Research Paper
Authors
1 Assistant Professor, Department of Horticultural Science and Engineering, Ahar Faculty of Agriculture and Natural Resources, University of Tabriz, Tabriz, Iran.
2 PhD Student in Production and Post-Harvest Physiology of Medicinal Plants, Department of Horticultural Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
3 Graduated from Department of Plant Ecophysiology, Department of Crop Ecology, Faculty of Agriculture, Tabriz University, Tabriz, Iran.
Abstract
Introduction: Weeds are one of the most important factors that reduce the growth and yield of plants. Therefore, adopting the appropriate method of weed control depending on the environmental conditions can play an effective role in improving the yeild of plants. Therefore, the aim of this research was to study the effect of different weed control methods on the growth and yeild of safflower.
Materials & Methods: In order to investigate the effect of different weed management methods on spring safflower protein percentage, an experiment based on randomized complete block design was carried out in the fields University of Tabriz. The investigated treatments include no weed control, one hand weeding at the rosette stage, Vicia ervilia cover plant, Vicia villosa cover plant, V.ervilia + V.villosa cover plant, straw and stubble mulch, trifluralin herbicide, trifluralin + gallant herbicide, trifluralin + fenmedifam herbicide, Haloxyfop-R ethyl + fenmedifam, hand weeding twice before stem elongation was complete manual weed control.
Research findings: Based on the results, the percentage of protein in the treatment of full manual control of weeds was 157.2% higher compared to the treatment of no weed control. According to the findings of this research, among the different methods of weed control, Trifluralin herbicide+Fenmedipham, Haloxyfop-R ethyl + Fenmedipham, manual weeding twice before the stem lengthens, V.ervilia and V.villosa, mulch Straw and stubble and complete manual control of weeds had a significant increase in seed yield, and the highest increase with 107% was obtained in the treatment of complete manual control of weeds.
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