The Efficiency Of Different Methods In Controlling Potato Weeds And Their Effect On Some Traits Of Potato Tuber Yield

Abstract

A field experiment was conducted in one of the agricultural fields in Nineveh province to study the effect of weeds control methods on the potato crop in the autumn season 2020-2021, represented by manual, chemical, and mechanical control, with three dates (50, 50 + 100 and 100%) of the percentage of potato tubers germination with the presence of a control treatment  (without counter),The results showed that all control methods led to an increase in the percentage of control based on the dry weight of the weeds and the number of weeds that were eliminated in compared with the control treatment (without control), but in varying proportions, and that all control methods were expensive when compared with the control treatment. (without counter), Where manual control was twice as expensive due to the large number of workers involved in the control work, while mechanical control gave the lowest value of control costs, but it was useless in the quantitative yield traits. Chemical control was less expensive than manual control, and it was noted that all control methods led to an increase in the total number of tubers per plant compared to the control treatment (without control),As for the marketable plant yield and the total yield, the mechanical control gave a yield close to that of the control treatment (without control).While manual and chemical control recorded for the second date the highest total yield of tubers (ton. ha^-1).