Institutional Repository of Xishuangbanna Tropical Botanical Garden
| OCCURRENCE OF WEED SPECIES IN Jatropha curcas INTERCROPPING SYSTEMS | |
| Concenco, G. | |
| 2014 | |
| Source Publication | Planta Daninha
 |
| ISSN | 0100-8358 |
| Volume | 32Issue:2Pages:327-334 |
| Abstract | This study aimed to evaluate the level of infestation by weed species in a consolidated Jatropha plantation, as a function of the plant species grown in interrows. The experiment was installed in 2006 at the district of Itahum, city of Dourados, state of Mato Grosso do Sul, Brazil, made possible through a partnership between Embrapa Western Agriculture and Paraiso Farm. Treatments consisted of (1) Jatropha in monocrop, with no plant at the interrrows; or the following plants cultivaded at the interrows of Jatropha: (2) Stylosanthes spp.; (3) Brachiaria ruziziensis; (4) Brachiaria ruziziensis Stylosanthess pp.; (5) Brachiaria humidicola; (6) Panicum maximum cv. massai; (7) Cajanus cajan cv. anao; (8) Crotalaria spectabilis; (9) Crop rotation system 1 - (maize second crop - Crambe abyssinica - soybean - peanut); and (10) Crop rotation system 2 - (cowpea - radish - maize - cowpea) conducted for two years. Phytosociological characterization of weed species was accomplished in 2011 based on the Ecological Approach. Estimations of relative abundance, frequency, dominance and Importance Value Index were obtained. Areas were also characterized by the diversity coefficients of Simpson and modified Shannon-Weiner, and then grouped by cluster analysis. Areas with low soil coverage resulted in higher infestation levels; crop rotation in the interrows of Jatropha produced a significant reduction in weed infestation, but the lowest infestation levels were observed when grasses were grown intercropped with Jatropha. Lower diversity coefficients were associated with occurrence of the most troublesome weed species. In the first years after planting Jatropha, species of Brachiaria or a crop rotation involving species with high mulching ability and whose biomass exhibit a high C:N ratio, should be established in the interrows to avoid problems with weeds infestation. |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/7143 |
| Collection | 热带植物资源可持续利用重点实验室特色文献_小桐子相关文献 |
| Recommended Citation GB/T 7714 | Concenco, G.. OCCURRENCE OF WEED SPECIES IN Jatropha curcas INTERCROPPING SYSTEMS[J]. Planta Daninha,2014,32(2):327-334. |
| APA | Concenco, G..(2014).OCCURRENCE OF WEED SPECIES IN Jatropha curcas INTERCROPPING SYSTEMS.Planta Daninha,32(2),327-334. |
| MLA | Concenco, G.."OCCURRENCE OF WEED SPECIES IN Jatropha curcas INTERCROPPING SYSTEMS".Planta Daninha 32.2(2014):327-334. |
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| File Name/Size | DocType | Version | Access | License | ||
| OCCURRENCE OF WEED S（625KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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