Zarin Kaviani, B., Zeidali, E., Moradi, R., Zarin Kaviani, K. (2018). Evaluation of the effect of integrated weed management on quantitative and qualitative characteristics of corn, weed density and biomass under Dehloran climatic condition. , 31(4), 129-150. doi: 10.22092/aj.2019.121327.1272
Bahram Zarin Kaviani; Ehsan Zeidali; Rooholla Moradi; Kianoosh Zarin Kaviani. "Evaluation of the effect of integrated weed management on quantitative and qualitative characteristics of corn, weed density and biomass under Dehloran climatic condition". , 31, 4, 2018, 129-150. doi: 10.22092/aj.2019.121327.1272
Zarin Kaviani, B., Zeidali, E., Moradi, R., Zarin Kaviani, K. (2018). 'Evaluation of the effect of integrated weed management on quantitative and qualitative characteristics of corn, weed density and biomass under Dehloran climatic condition', , 31(4), pp. 129-150. doi: 10.22092/aj.2019.121327.1272
Zarin Kaviani, B., Zeidali, E., Moradi, R., Zarin Kaviani, K. Evaluation of the effect of integrated weed management on quantitative and qualitative characteristics of corn, weed density and biomass under Dehloran climatic condition. , 2018; 31(4): 129-150. doi: 10.22092/aj.2019.121327.1272

Evaluation of the effect of integrated weed management on quantitative and qualitative characteristics of corn, weed density and biomass under Dehloran climatic condition

پژوهش های کاربردی زراعی
Article 7, Volume 31, Issue 4 - Serial Number 121, January 2019, Pages 129-150    PDF (855.17 K)
Document Type: Research Paper
DOI: 10.22092/aj.2019.121327.1272
Authors
Bahram Zarin Kaviani1; Ehsan Zeidali* 2; Rooholla Moradi3; Kianoosh Zarin Kaviani4
1MSc Student, Department of Agronomy, Faculty of Agriculture, Ilam University, Ilam, Iran
2Assistant Professor, Department of Agronomy, Faculty of Agriculture, Ilam University, Ilam, Iran
3Assistant Professor, Department of Plant Productions, Agricultural Faculty of Bardsir, Shahid Bahonar University of Kerman, Kerman, Iran
4Assistant Professor, Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran
Abstract
Integrated weed management in corn (Cordona Variety) was studied in an experiment conducted in 2016-2017 growing season in Dehloran region, Ilam provice, Iran. The experiment was performed in split-split plots based on randomized complete block design with three replications. The main plot was tillage systems with two levels (tillage (cultivator) and no-tillage), corn density at three levels (65, 75 and 85 thousand plants per hectare) assigned to sub plots, and herbicide applications at two levels (herbicide and no- herbicide) in sub-sub plots. Frequency and density of weeds, dry weight grain yield, biological yield, harvest index, 100 seed weight, grain number per ear, protein percent, fiber and ash were measured. Small-flowered nutsedge (5.2 plant m-2), Ground cherry (4.4 plant m-2), and redroot pigweed (6.8 plant m-2) were dominant. Increasing the maize density from 65 to 85 thousand plant m-2 led to reducing 102% and 129% weed density and biomass, respectively. Results showed that weed density and biomass reduced by inter-row tillage system. The highest grain yield (5720 kg ha-1) was assigned to the highest maize density + herbicide + tillage treatments. Inter-row tillage increased 17% biological yield of maize than non-tillage. The highest protein content of grain (9.78%) was obtained at 75000 plant m-2 density using herbicide. Fiber and ash percentage were higher at higher densities and application of tillage and herbicide. Integrated weed management in corn (Cordona Variety) was studied in an experiment conducted in 2016-2017 growing season in Dehloran region, Ilam provice, Iran. The experiment was performed in split-split plots based on randomized complete block design with three replications. The main plot was tillage systems with two levels (tillage (cultivator) and no-tillage), corn density at three levels (65, 75 and 85 thousand plants per hectare) assigned to sub plots, and herbicide applications at two levels (herbicide and no- herbicide) in sub-sub plots. Frequency and density of weeds, dry weight grain yield, biological yield, harvest index, 100 seed weight, grain number per ear, protein percent, fiber and ash were measured. Small-flowered nutsedge (5.2 plant m-2), Ground cherry (4.4 plant m-2), and redroot pigweed (6.8 plant m-2) were dominant. Increasing the maize density from 65 to 85 thousand plant m-2 led to reducing 102% and 129% weed density and biomass, respectively. Results showed that weed density and biomass reduced by inter-row tillage system. The highest grain yield (5720 kg ha-1) was assigned to the highest maize density + herbicide + tillage treatments. Inter-row tillage increased 17% biological yield of maize than non-tillage. The highest protein content of grain (9.78%) was obtained at 75000 plant m-2 density using herbicide. Fiber and ash percentage were higher at higher densities and application of tillage and herbicide.
Keywords
Inter-row tillage; herbicide; plant density; Ash; protein
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