Intercropping as an effective component of integrated weed management in tropical root and tuber crops: A review

Weerarathne, L. V. Y.; Marambe, B.; Chauhan, Bhagirath Singh

doi:10.1016/j.cropro.2016.08.010

Cited by 37 publications

(21 citation statements)

References 43 publications

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“…High plant densities can accelerate canopy development and consequently weed suppression resulting in low competition between weed and maize for water and nutrients, which are vital for maize growth under semiarid or any environmental conditions. Additionally, physical plant attributes can lead to a viable competition against weeds, such as early canopy closure (Bajwa, Walsk, & Chauhan, 2017;Fahad et al, 2015;Weerarathne, Marambe, & Chauhan, 2017). Another interesting point is, according to the results observed, we can assume that economic and environmental trends could be solved because of reducing herbicides applications.…”

Section: Discussionmentioning

confidence: 85%

Phytosociology and Behavior of Weeds in Maize as Influenced by Spatial Arrangements

Mendes¹,

Filho²,

Pereira³

et al. 2018

JAS

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Using the right spatial arrangement is a sustainable way to prevent or at least delay the emergence of weeds in the crop production. This study evaluated the influence of row spacing and plant density of maize on weed control based on the phytosociological survey. It was conducted on an Oxisol textured medium in a 400 m 2 area under semiarid conditions. The hybrid maize 30F53YH was managed under a no-till cropping system with three types of row spacing ( , and 8.0 plants m -2 ). The experimental design was randomized complete blocks with four replications in a factorial arrangement 3 × 3. The phytosociological survey of the weeds was randomly performed four times in each subplot, using the inventory square (0.5 m × 0.5 m). The collected data were analyzed using the R statistical program. Among the specimen's families identified on the field, three of them need to be highlighted due to its high values of density, frequency, and dominance. These families were Fabaceae, Poaceae, and Amaranthaceae. Also, it was identified that the Leucaena leucocephala species may be classified as a weed, as it acted as an invasive species on maize. The weed control was greatly influenced by the interaction of both parameters rather than only row spacing or the plant density factor. The results showed that the reduced spacing and high crop population decreased the presence of weeds in the maize crop.

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Section: Discussionmentioning

confidence: 85%

Phytosociology and Behavior of Weeds in Maize as Influenced by Spatial Arrangements

Mendes¹,

Filho²,

Pereira³

et al. 2018

JAS

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“…Intercropping involves two or more crop species, or genotypes, growing in the same field at the same time and is employed to enhance crop productivity. The underpinning mechanisms of facilitation in intercropping systems often include improved soil conditions and pest management (Brooker et al, 2015; Weerarathne, Marambe, & Chauhan, 2017), but relatively less is known about the role of the root exudates in interspecific facilitation.…”

Section: Roles Of Root Exudates In Plant‐to‐plant Signallingmentioning

confidence: 99%

Root exudate signals in plant–plant interactions

Wang

Kong

Wang

et al. 2020

Plant Cell & Environment

150

100

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Plant-to-plant signalling is a key mediator of interactions among plant species. Plants can perceive and respond to chemical cues emitted from their neighbours, altering survival and performance, impacting plant coexistence and community assembly. An increasing number of studies indicate root exudates as key players in plant-to-plant signalling. Root exudates mediate root detection and behaviour, kin recognition, flowering and production, driving inter-and intra-specific facilitation in cropping systems and mixed-species plantations. Altered interactions may be attributed to the signalling components within root exudates. Root ethylene, strigolactones, jasmonic acid, (-)-loliolide and allantoin are signalling chemicals that convey information on local conditions in plant-plant interactions. These root-secreted signalling chemicals appear ubiquitous in plants and trigger a series of belowground responses inter-and intra-specifically, involving molecular events in biosynthesis, secretion and action. The secretion of root signals, mainly mediated by ATP-binding cassette transporters, is critical. Root-secreted signalling chemicals and their molecular mechanisms are rapidly revealing a multitude of fascinating plant-plant interactions. However, many root signals, particularly species-specific signals and their underlying mechanisms, remain to be uncovered due to methodological limitations and root-soil interactions. A thorough understanding of root-secreted chemical signals and their mechanisms will offer many ecological implications and potential applications for sustainable agriculture.

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“…Maize yields were not affected by simultaneously interplanting sweetpotato in Ethiopia (Amede and Nigatu, 2001). Intercropping sweetpotato with crops such as maize may help to reduce soil erosion, improve soil moisture conservation, and reduce weed pressure, as sweetpotato rapidly develops a dense foliage (Liebman and Dyck, 1993;Mukhopadhyay et al, 2011;Nedunchezhiyan et al, 2012;Weerarathne et al, 2017). Amede and Nigatu (2001) suggested that a maize-sweetpotato intercrop is beneficial by providing vines as feed in addition to the maize grain yield.…”

Section: Contributions Of Sweetpotato To Cropping and Farming Systemsmentioning

confidence: 99%

Nutrient-Dense Orange-Fleshed Sweetpotato: Advances in Drought-Tolerance Breeding and Understanding of Management Practices for Sustainable Next-Generation Cropping Systems in Sub-Saharan Africa

Low

Ortíz

Vandamme³

et al. 2020

Front. Sustain. Food Syst.

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Low et al. Drought-Tolerant Orange-Fleshed Sweetpotato Early maturing cultivars (< 4 month growing period) that escape drought but also serve humid environments with small landholding size per capita; and (2) Medium maturing (4-6 month growing period) cultivars that avoid drought, are drought tolerant and exhibit continuous root formation. Increasing commercialization of the crop and climate change will drive demand, and the willingness of farmers to invest in improved sweetpotato crop management.

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Intercropping as an effective component of integrated weed management in tropical root and tuber crops: A review

Cited by 37 publications

References 43 publications

Phytosociology and Behavior of Weeds in Maize as Influenced by Spatial Arrangements

Phytosociology and Behavior of Weeds in Maize as Influenced by Spatial Arrangements

Root exudate signals in plant–plant interactions

Nutrient-Dense Orange-Fleshed Sweetpotato: Advances in Drought-Tolerance Breeding and Understanding of Management Practices for Sustainable Next-Generation Cropping Systems in Sub-Saharan Africa

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