Evaluation of Different Pre and Post Emergence Herbicides for Controlling Weeds in Direct Seeded Rice (Oryza sativa L.) in Sargodha Zone Pakistan
Evaluation of Different Pre and Post Emergence Herbicides for Controlling Weeds in Direct Seeded Rice (Oryza sativa L.) in Sargodha Zone Pakistan
Ali Raza1*, Ammara Khan2, Muhammad Nawaz3, Muhammad Tanveer Ahmed4, Muhammad Arif4, Muhammad Ishfaq2 and Ishtiaq Hassan5
ABSTRACT
Rice is the main crop which fulfills the need of 50% population of the country. In Pakistan rice is cultivated on area of 2.97 million ha with production 7.322 million tons. The production of rice decreased during last year due to high input price and lack of resources at proper time. Certain factors affect the crop yield in which weeds are the most important which compete with crop for nutrients, light and space. For this reason a field experiment was designed to evaluate the efficacy of different pre and post emergence herbicides for control of weeds in Direct seeded rice. Randomized complete block design (RCBD) was used to lay out the experiment at Adaptive Research Farm Sargodha during the summer season of 2022 and 2023. It includes nine treatments (pendimethaline @ 1000 ml/acre, pendimethaline fb bis. sodium + bensulfuran methyl @ 1000 ml and 100 gm/acre, pendimethaline fb bispyrabac sodium + cyhalofop @ 1000 ml and 100gm/acre, pendimethalin fb metmefop @ 1000 and 500 ml/acre, Counsilactive (triefamon+ethoxysulfuron) @ 75 gm/acre, counsilactive fb Bis. sodium + bensulfuran methyl @ 75 and 100 gm/acre, counsilactive fb bispyrabac sodium + cyhalofop @ 75 and 100 gm/acre, Counsilactive fb metmefop @ 75 and 500 ml/acre and weedy check) and three replications. Super Basmati was sown in the 2nd week of June in both Kharif seasons 2022 and 2023 using seed rate 8 kg ac-1. The result revealed that minimum weed infestation was observed in counsilactive fb bispyrabac sodium + cyhalofop butyl + fenoxaprop-P-ethyl (pomextra 16 OD) was 14.33 m-2 followed by pendimethaline fb bispyrabac sodium + bensulfuran methyl (winsta 30WDG) and maximum yield obtain from counsilactive fb bispyrabac sodium + bensulfuran methyl (winsta 30WDG) was 3798.56 followed by pendimethaline fb bispyrabac sodium + bensulfuran methyl (winsta 30WDG) in kharif 2022. While in kharif 2023 the maximum yield obtains from (counsilactive fb bispyrabac sodium + cyhalofop butyl + fenoxaprop-P-ethyl (pomextra 16 OD) were 3269.22 followed by counsilactive fb bispyrabac sodium + bensulfuran methyl (winsta 30WDG). The lowest statistically significant yield was harvest in the weedy check. Hence, applications of pre-emergence herbicide counsilactive and post emergence herbicide winsta 30WDG are recommended to achieve bumper harvests of rice in the target area.
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