Evaluation of three herbicides in the pre-emergent control of sugarcane weeds (Original)

Abstract

During the period february-june 2017, a trial was established in plots of commercial areas, in shoot stock, applied before the outbreak of the foliage on a Fluvisol soil (Alluvial). The experiment was carried out in a random block design, with 4 treatments and 4 replications, the area of ​​the plot of 0.009 ha (90 m2) per treatment in the Agricultural Production Cooperative (CPA) "Omar Rivero Fonseca", of the Base Business Unit (UEB) Bartolomé Masó, located in the town of Vuelta del Caño, municipality of Manzanillo, Granma province, with the objective of evaluating the effect of three herbicides on the variety of sugarcane CP 52-43, suckers. The herbicides evaluated were the Mayoral LS 35 at 0,600 L / ha p.c applied in pre-emergence before germination irrigation; Herbicide MerlinGD 75 at 0.270 kg / ha p.c; In addition, the total Merlin 60 SC was used at 0.250 L / ha p.c and finally a Control A (absolute) was used where the effectiveness of each herbicide treated in the cover of weeds could be compared. The product was applied with Matabi backpack hand sprayer five days after the cut (5 DDC), under dry soil conditions, where the results were obtained at the beginning of 2018.