Hamzei, J. and Seyedi, M. (2013) Effect of Intercropped Barley on Weed Suppression in Chickpea-Barley Intercropping Systems. International journal of Agronomy and Plant Production, 4 (5). pp. 884-891.
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Abstract
Application of herbicides, besides being costly, resulted in the selection of herbicideresistant weed species and has become an environmental contamination factor. However, reduction of herbicide consumption is one of the goals of modern agriculture, with several methods being suggested, including intercropping. Hence, in chickpea (C) production, the effects of intercropped barley (B) on total weed density (TWD), total weed biomass (TWB) and weed control efficiency (WCE) were evaluated. Experiment was carried out as randomized complete block design (RCBD) with eight treatments and three replications. Treatments were different intercropping systems; sole crop of chickpea without weeding (SC), replacement intercropping of C75% + B25%, (RI1), C50% + B50%, (RI2), and C25% + B75%, (RI3), and additive intercropping of C100% + B25% (AI1), C100% + B50% (AI2), C100% + B75% (AI3) and C100% + B100% (AI4). In this study, the most frequent weed species were Chenopodium album, Convolvulus arvensis and Samaria viridis. Results indicated that traits of TWD and TWB were affected by experimental treatments. Maximum values of TWD and TWB; 60.67 plants m-2 and 153.37 g m-2, respectively, were achieved at SC treatment. Among the intercropping systems, AI4 treatment recorded the lowest TWD (20.33 plants m-2), TWB (15.5 g m-2) and highest WCE (89.89%). The lowest WCE (49.19%) was found at RI1 treatment. So, intercropped barley especially AI4 treatment had a certain control over weeds; means reductions of 66.49% and 89.89%, in terms of TWD and TWB, respectively. In general, intercropped barley suppressed weeds and increased chickpea grain yield (data not shown).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Intercropping, Barley (Hordeum vulgare), Chickpea (Cicer arietinum), Weed suppression, Weed control efficiency. |
| Author Affiliation: | Bu-Ali Sina University, Hamedan, Iran |
| Subjects: | Plant Production Plant Protection |
| Divisions: | Chickpea |
| Depositing User: | Mr. SanatKumar Behera |
| Date Deposited: | 02 May 2013 04:38 |
| Last Modified: | 02 May 2013 04:38 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/10452 |
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