Investigating the residue effects of herbicides uses in wheat after corn(karaj)

Subject Areas :

ehsan alah  jalili ¹ (student)
farnaz  ganjabadi ² (student)

Received: 2016-03-04 Accepted : 2016-03-23 Published : 2013-10-23

Keywords: Rotation, herbicide sulfonylureas, Mesotrion, S-Metolachlor, terbotilazine,

Abstract :

In order to evaluate the effects of four commercial formulations of sulfonylurea herbicides include Titus (rim Sulfurun), Cruz (nicosulfuron), Ekoup (Foramsulfuron) and Aultyma (nicosulfuron + rim Sulfurun) and four new herbicide dose Lomax (Mzutryun + S Mtalaklr + Trbutylazyn) in the form of pre- and post-emergence and D + MCPA (U-46 Dyfluyyd) and treatment without herbicide application in the field after corn on the performance and growth parameters of wheat were studied. Experiments in Tehran (Karaj) in a randomized complete block design was done after harvest. Wheat (the leading) in the previous field of corn that were treated with these herbicides. In this experiment, grain and biological yield, harvest index and crop growth parameters in rotation with maize had been analyzed. Based on the results, when the crop was wheat in rotation with maize, herbicide residues Titus and post-emergence herbicide for Lomax (5.4 liters per hectare) wheat grain yield and 7/19 respectively. and 1.9% respectively 3.9 and 1.7 percentage yield decreased, and had the most negative effect on wheat. Lomax also treated postemergence at a rate of 4 liters per hectare, with a maximum leaf area index, dry matter production had the highest and lowest herbicide treatments produced Titus leaf area index, the lowest dry matter, respectively.