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2012 (Vol. 4, Issue: 16)
Article Information:

The Evaluation and the Comparison of the Effect of Mechanical Weeding Systems on Rice Weed

Fazlollah Eskandari Cherati, Soheila Kamyab and Mohammad Shekofteh
Corresponding Author:  Fazlollah Eskandari Cherati 

Key words:  Dry weight, power mechanical weeder, without engine mechanical weeder, yield rice, , ,
Vol. 4 , (16): 2653-2659
Submitted Accepted Published
February 18, 2012 March 16, 2012 August 15, 2012

In order to study the influence of different methods of controlling weeds such as mechanical weeding and mechanical weeder efficiency analysis in mechanical cultivation conditions, in farming year of 2011 an experiment was done in a farm in coupling and development of technology center in Haraz, Iran. The treatments consisted of (I) control treatment: where no weeding was done, (II) use of mechanical weeding without engine and (III) power mechanical weeding. Results showed that experimental treatments had significantly different effects (p = 0.05) on yield traits and number of filled grains per panicle, while treatments had the significant effects on grain weight and dry weight of weeds in the first, second and third weeding methods at 1% of confidence level. Treatment (II) had its most significant effect on number of filled grains per panicle and yield performance standpoint, which was 3705.97 kg/ha in its highest peak. Treatment (III) was ranked as second influential with 3559.8 kg/ha. In addition, under (I) treatments, 2364.73 kg/ha of yield produced. The minimum dry weights of weeds in all weeding methods were related to the treatment (II), (III) and (I), respectively. The correlation coefficient analysis showed that total yield had a significant positive correlation with the panicle grain yield per plant (r = 0.55*) and the number of grains/panicle (r = 0.57*) and the number of filled grains (r = 0.63*). Total rice yield also had negative correlation of r = -0.64* with weed dry weight at second weed sampling time (17 DAT). The weed dry weight at third and fourth sampling times (24 and 40 DAT) had negative correlations of -0.65** and r = -0.61* with rice yield, respectively.
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  Cite this Reference:
Fazlollah Eskandari Cherati, Soheila Kamyab and Mohammad Shekofteh, 2012. The Evaluation and the Comparison of the Effect of Mechanical Weeding Systems on Rice Weed.  Research Journal of Applied Sciences, Engineering and Technology, 4(16): 2653-2659.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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