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The effect of Urea as Adjuvant on Herbicide Effectiveness, Yield and Weeds of Maize with Full and Reduced Doses of Herbicide
Author(s):
1. Muhammad Tahir: Department of Agronomy, University of Agriculture, Faisalabad, PAKISTAN
2. Muhammad Ather Nadeem: Department of Agronomy, University of Agriculture, Faisalabad, PAKISTAN
3. Asif Tanveer: Department of Agronomy, University of Agriculture, Faisalabad, PAKISTAN
4. Muhammad Ayub: Department of Agronomy, University of Agriculture, Faisalabad, PAKISTAN
5. Azadar Hussain: Department of Agronomy, University of Agriculture, Faisalabad, PAKISTAN
6. Hafiz Muhammad Rashad Javeed: Department of Agronomy, University of Agriculture, Faisalabad, PAKISTAN
7. Muhammad Naeem: University College of Agriculture & Environmental Sciences, Islamia University, Bahawalpur, PAKISTAN
Abstract:
A field experiment was carried out to study the effect of urea as adjuvant for controlling the weeds in maize. The experiment comprised the following treatments; weedy check, manual hoeing, foramsulfuron + isoxadifen + isosulfuronmethyl sodium alone at 228.75 g a.i. ha-1, and with 3% urea solution at 228.75, 190.39 and 152.50 g a.i. ha-1. The maximum reduction in weed density and dry weight was recorded by manual hoeing at 20 and 40 days after spray, however, at harvest minimum weed density and dry weight was recorded with full dose of herbicide along with urea as adjuvant. The grain yield and yield components, except number of cobs per plant and grains per row, were affected significantly and maximum grain yield was obtained with manual hoeing which resulted in 93.05% increase in grain yield over weedy check.
Page(s): 45-51
DOI: DOI not available
Published: Journal: Pakistan Journal of Life and Social Sciences, Volume: 9, Issue: 1, Year: 2011
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