The effect of herbicide tank mix on the weed species diversity in sugarcane (Saccharum officinarum)

Mugehu, Edith (2013) The effect of herbicide tank mix on the weed species diversity in sugarcane (Saccharum officinarum).

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Publication by Edith Mugehu and Misheck Chandiposha, Agronomy Department, Midlands State University,A field experiment was carried out at Triangle Estate, Zimbabwe to determine the efficacy of Pendimethalin, Chlorimuron ethyl and Metribuzin herbicide combinations on the weed species diversity in sugarcane. The experiment was laid out in a Complete Randomized Block Design (CRBD) with four replications. Treatments included; Chlorimuron ethyl (90g/ha), Metribuzin(2l/ha), Pendimethalin(2l/ha), Extreme Plus (0.8l/ha), Extreme Plus(1l/ha), Extreme Plus(0.8l/ha)+ Pendimethalin(2l/ha), Extreme Plus(1l/ha) + Pendimethalin(3l/ha), Pendimethalin(2l/ha) + Atrazine (2l/ha) and no weeding (control). The major weeds observed in this experiment are Amaranthus viridis, Ipomoea sinensis, Boerhavia erecta, Rotboellia conchinchinensis, Commelina bengalensis and Cyperus spp (purple and yellow). The herbicide tank mix of pendimethalin (2l/ha) + atrazine (2l/ha) significantly (p<0.05) controlled all weed species in this study except Ipomoea sinensis. The tank mix pendimethalin (2l/ha) + atrazine (2l/ha) resulted in 98.83% and 93% control for Amaranthus viridis and Rotboellia conchinchinensis respectively. Ipomoea sinensis was effectively reduced by metribuzin and Extreme plus (0.8l/ha) although its control was difficult. Extreme plus (0.8l/ha) effectively controlled all broadleaf weeds and Cyperus spp. Generally, spraying herbicides without mixing resulted in reduced control of weeds.

Item Type: Article
Uncontrolled Keywords: Sugarcane, weeds, pendimethalin, metribuzin, atrazine, chlorimuron ethyl
Divisions: Universities > State Universities > Midlands State University
Depositing User: Mr. Edmore Sibanda
Date Deposited: 31 Aug 2017 02:04
Last Modified: 31 Aug 2017 02:04

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