Chicory weed control (Cichorium intybus L.) With the allopathic effect of Camelina plant residues (Camelina sativa L.)

The experiment was conducted as a completely randomized design with three replications. Experimental treatments included Camelina plant residues at five levels (crop residues with ratios of 2, 4, 8, 16, and 32 g/kg field soil) on the chicory plant. The results showed that with increasing the amount of Camelina crop residues in the soil, chicory growth indices decreased significantly. The lowest and highest allopathic effects on chicory traits were observed in 2 g and 32 g of Camellina residues per kg of soil, respectively, which were statistically significant for all studied traits (P≤0.01). Based on the results, mixing Camelina residues with soil on plant height (42.14%), stem diameter (47.87%), root length (66.74%), root diameter (55.94%), volume of root (88.24%), fresh weight of shoot (57.35%), dry weight of shoot (63.75%), fresh weight of root (90.39%), dry weight of root (83.87%), chlorophyll a (52.21%), chlorophyll b (48.48%), total chlorophyll (48.56%) decreased compared to the control and carotenoids (167.81%) and anthocyanin (94.80%) of chicory plant ratio showed an increase in the control compared to the treatment groups. An interesting result of this study was the high allopathic potential of Camelina. Due to the agronomic characteristics of Camelina, it can be used in crop rotation or as a mixed crop to control any weeds. However, this crop can be a good model and candidate for the study and preparation of natural herbicides and pesticides, which is one of the important goals of sustainable agriculture.