Share of anthropophytes in the crop sequence: winter wheat – maize – spring wheat depending on tillage system

Sekutowski, T.; Smagacz, J.

doi:10.5586/aa.2014.016

Cited by 7 publications

(4 citation statements)

References 2 publications

(2 reference statements)

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“…Conn's [47] findings support the lower prevalence of weed species in ST as shown by higher and lower values of diversity and dominance indices, respectively. Similarly, another study supports us by pointing out that reduced tillage systems have lower H'-value and higher SI-value [7]. By contrast, Cardina et al [48] and Borin et al [49] found that increasing the intensity of plowing in CT resulted in a decline in the species diversity.…”

Section: Discussionsupporting

confidence: 54%

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Strip Tillage and Crop Residue Retention Decrease the Size but Increase the Diversity of the Weed Seed Bank under Intensive Rice-Based Crop Rotations in Bangladesh

et al. 2021

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Cropping under conservation agriculture (CA) has become increasingly attractive among farmers in recent years. However, weed control may be more difficult during the transition to CA from conventional establishment methods due to the reduction in tillage intensity. Conversely, CA changes to weed dynamics can alter the weed seed bank in the longer run. In Bangladesh’s intensively cropped rice-based rotations, the nature of weed seed bank shifts over time after adopting CA are poorly known. Two 2-year studies were sampled from on-farm CA experiments under wheat-mungbean-winter rice and monsoon rice-mustard-winter rice rotations. We investigated the effects of reduced soil disruption in the form of strip-tillage (ST) combined with increased deposition of standing reside from previous crops (0 vs. 50%). The weed seed bank in 0–5, 5–10, and 10–15 cm depths of soil were quantified in a shade-house experiment by measuring weed emergence over 12 months in seedling trays. After 2 years of field study, the year-round count of emerged weeds from the seed bank showed that ST plus 50% mulch had a lower weed abundance and biomass and fewer weed species than that of conventional tillage (CT) without residue. The perennial weeds Ageratum conyzoides L., Alternanthera philoxeroides L., Cynodon dactylon L., Cyperus rotundus L., Jussia decurrence Walt., Leersia hexandra L., Scirpus mucronatus (L.) Palla., and Solanum torvum Sw. were enriched in the smaller-sized ST seed banks in terms of both density and biomass. The CT, on the other hand, was dominated by annual weeds: Cyperus difformis L., Cyanotis axillaris Roem., Echinochloa crus-galli (L.) Beauv., Eleusine indica L., Fimbristylis miliacea (L.) Vahl., and Rotala ramosior L. Overall, ST plus 50% residue had a more diverse seed bank than CT without mulch. The majority of weed seeds were amassed in the 0–5 cm soil depth of the ST, while most of them were accumulated in the 10–15 cm layer of the CT. The wheat-mungbean-winter rice rotation had a more diverse floristic composition with many more weed species than the monsoon rice-mustard-winter rice rotation.

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Section: Discussionsupporting

confidence: 54%

“…Tillage is the most significant agronomic practice affecting the weeds in conventional fields [7,8]. By contrast, CA reduces the intensity and extent of soil disturbance.…”

Section: Introductionmentioning

confidence: 99%

Strip Tillage and Crop Residue Retention Decrease the Size but Increase the Diversity of the Weed Seed Bank under Intensive Rice-Based Crop Rotations in Bangladesh

et al. 2021

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“…The germination rate of weed seeds and their subsequent growth and competitiveness against the crop depend on the tillage [26]. In intensive ploughing systems, weed seeds are evenly distributed in the arable layer, while in reduced tillage systems, a large number of them are concentrated in the surface layer of the soil [27].…”

Section: Biodiversity Of Weeds and Tillage Systemsmentioning

confidence: 99%

Weed Ecology and New Approaches for Management

Kocira

Staniak

2021

Agriculture

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“…Allelochemicals are once released in soil or plant it badly effects the target plant abilities ( Kruse et al., 2000 ). Tillage is one of the key elements affecting weed infestation in various crops ( Sekutowski and Smagacz, 2014 ). Tillage is known to induce the germination of weed seeds.…”

Section: Introductionmentioning

confidence: 99%

Weed infestation and productivity of wheat crop sown in various cropping systems under conventional and conservation tillage

et al. 2023

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IntroductionClimate change, pest infestation, and soil degradation are significantly reducing wheat (Triticum aestivum L.) yield. Wheat is cultivated in rice-wheat and cotton-wheat cropping systems and escalating global population is exerting substantial pressure on the efficiency of these systems. Conservation tillage and crop rotation could help in lowering soil degradation and pest infestation, and improving wheat yield.MethodsThis three-year study evaluated soil properties, weed infestation and wheat yield under various tillage and cropping systems. Six different cropping systems, i.e., cotton-wheat, sorghum-wheat, mungbean-wheat, rice-wheat, sunflower-wheat, and fallow-wheat (control) and three tillage systems, i.e., conventional tillage (CT), zero-tillage (ZT) and minimum tillage (MT) were included in the study.ResultsThe individual and interactive effects of tillage and cropping systems significantly affected soil properties, weed infestation and yield of wheat crop. Overall, CT resulted in lower soil bulk density and higher porosity, while ZT behaved oppositely at all locations in this regard. Similarly, mungbean-wheat cropping system resulted in lower bulk density and higher porosity and nitrogen (N) contents, while fallow-wheat cropping system resulted in higher bulk density, and lower soil porosity and N contents. Similarly, ZT and CT resulted in higher and lower weed infestation, respectively. Likewise, lower and higher weed density and biomass were recorded in wheat-sorghum and wheat-fallow cropping systems, respectively at all locations. In the same way higher number of productive tillers, number of grains per spike, 1000-grain weight, grain yield, and economic returns of wheat crop were recorded for CT, whereas ZT resulted in lower values of these traits. Regarding interactions, wheat-mungbean cropping system with CT resulted in lower bulk density and higher porosity and N contents, whereas wheat-fallow system with ZT behaved oppositely at all locations in this regard. Similarly, higher and lower values for yield-related traits and economic returns of wheat crop were noted for mungbean-wheat cropping system under CT and fallow-wheat and sorghum-wheat cropping systems under ZT, respectively. It is concluded that the mungbean-wheat cropping system improved wheat productivity and soil health and sorghum-wheat cropping system could lower weed infestation. Therefore, these cropping systems can be practiced to lower weed infestation and improve wheat yield and economic returns.

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Share of anthropophytes in the crop sequence: winter wheat – maize – spring wheat depending on tillage system

Cited by 7 publications

References 2 publications

Strip Tillage and Crop Residue Retention Decrease the Size but Increase the Diversity of the Weed Seed Bank under Intensive Rice-Based Crop Rotations in Bangladesh

Strip Tillage and Crop Residue Retention Decrease the Size but Increase the Diversity of the Weed Seed Bank under Intensive Rice-Based Crop Rotations in Bangladesh

Weed Ecology and New Approaches for Management

Weed infestation and productivity of wheat crop sown in various cropping systems under conventional and conservation tillage

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