A Sprayable Biodegradable Polymer Membrane (SBPM) technology: Effect of band width and application rate on water conservation and seedling emergence

Braunack, Michael; Zaja, Adriana; Tam, Kang; Filipović, Lana; Filipović, Vilim; Wang, Yusong; Bristow, Keith L.

doi:10.1016/j.agwat.2019.105900

Cited by 18 publications

(11 citation statements)

References 25 publications

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“…The thickness of the compost blanket, and its ability to store water also may have contributed to the detectable difference in carrot biomass from the no-mulch control. Mulch modification of soil moisture and temperature, and the negative effect of living mulches on crop growth are well established (Braunack et al, 2020;O'Brien et al, 2018), but these responses could not be sufficiently quantified in this study. Compost blanket improvements to carrot yields compared with the no-mulch control were modest in comparison with the effect of living mulches on yield, but further investigation of the fertility, moisture, and temperature modifications provided by compost blanket may clarify the findings of this study.…”

Section: Resultsmentioning

confidence: 97%

Weed Suppression Potential of Living Mulches, Newspaper Hydromulches, and Compost Blankets in Organically Managed Carrot Production

Puka-Beals

Gamig

2021

hortte

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Direct seeding into strip-tilled zones (STZs) of living mulches may require weed suppression tactics for soil surfaces exposed within the STZ. Three surface mulch options (hydromulch, compost blanket, and a no-mulch control) were evaluated for their ability to suppress weeds and improve crop performance when applied in STZs seeded to carrot (Daucus carota). These STZs were located within one of five living mulch options [red clover (Trifolium pratense), white clover (Trifolium repens), perennial ryegrass (Lolium perenne), a weed-free control, and a weedy control]. From measurements spanning 2 years at two North Dakota locations, dry weed biomass was lower in STZs where hydromulch or compost blankets were applied compared with the no-mulch control (12, 13, and 82 g·m−2, respectively). The presence of a living mulch adjacent to the STZ reduced carrot root biomass by 49% to 84% compared with the weed-free control. Further research should 1) investigate methods for reducing yield loss from living mulches, and 2) develop biodegradable alternatives to plastic mulches.

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Section: Resultsmentioning

confidence: 97%

Weed Suppression Potential of Living Mulches, Newspaper Hydromulches, and Compost Blankets in Organically Managed Carrot Production

Puka-Beals

Gamig

2021

hortte

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“…In this instance, the polymer was applied slightly heavier, thus providing a better surface seal. Similarly, for a study where a sprayable, biodegradable polymer membrane (SBPM) was applied to cotton crops on ridge rows, there was improved water conservation where the SBPM covered the plant line, compared to when it was applied adjacent to the crop rows (Braunack, Zaja, et al, 2020). This demonstrates the importance of maximising surface cover.…”

Section: Discussionmentioning

confidence: 99%

In‐field evaporative protection for dryland wheat and lentil crops using polymers

Nuttall

Delahunty

O’Leary

et al. 2023

J Agronomy Crop Science

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In semi‐arid cropping regions where rainfall is variable, stored soil water is important for reducing the impacts of dry periods; however, in‐season evaporation limits yield potential. We tested the productivity benefits of protecting wheat and lentil crops from evaporation using inter‐row polymer cover, when grown in southern Australia. For wheat, white polyvinyl chloride (PVCw) increased yield by 50% (561 kg/ha) and 11% (408 kg/ha) for decile 2 (2018) and 3 (2019) seasonal rainfall respectively; and for lentil, yield increases were 20% (443 kg/ha) in 2019. A sprayable alginate polymer increased wheat yield by 8% (310 kg/ha). Total water use for wheat in 2018 was reduced (17 mm) for PVCw and water use efficiency (WUE) significantly increased from 7 to 11 kg/ha/mm, whereas in 2019, WU was greater (47 mm) for PVCw, but WUE was equivalent to the control (~15 kg/ha/mm). Colour of the PVC modified the light available to the crop and canopy temperature, where a highly reflective inter‐row cover (albedo 0.44) increased wheat yield (~487 kg/ha). For the future, formulations of highly reflective polymers applied in‐season within dryland cropping enterprises are likely to provide production advantages, although logistical viability of application and potential environmental implications may define impediments to adoption.

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“…Keratin extracted from bovine hair, by using spent liquor from a pulp factory, was used for the formation of a sprayable mulch composition, with high water holding capacity (380%) and high mineral nutrient content (from pulping spent liquor). Biodegradable sprayable mulch is a sustainable alternative to oil-derived plastic mulch [ 167 ], improves water management in the soil during vegetable cultivation [ 168 ], and represents an eco-efficient mean to control weeds [ 169 ].…”

Section: Applications Of Extracted Keratinmentioning

confidence: 99%

Closing the Loop with Keratin-Rich Fibrous Materials

et al. 2021

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One of the agro-industry’s side streams that is widely met is the-keratin rich fibrous material that is becoming a waste product without valorization. Its management as a waste is costly, as the incineration of this type of waste constitutes high environmental concern. Considering these facts, the keratin-rich waste can be considered as a treasure for the producers interested in the valorization of such slowly-biodegradable by-products. As keratin is a protein that needs harsh conditions for its degradation, and that in most of the cases its constitutive amino acids are destroyed, we review new extraction methods that are eco-friendly and cost-effective. The chemical and enzymatic extractions of keratin are compared and the optimization of the extraction conditions at the lab scale is considered. In this study, there are also considered the potential applications of the extracted keratin as well as the reuse of the by-products obtained during the extraction processes.

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A Sprayable Biodegradable Polymer Membrane (SBPM) technology: Effect of band width and application rate on water conservation and seedling emergence

Cited by 18 publications

References 25 publications

Weed Suppression Potential of Living Mulches, Newspaper Hydromulches, and Compost Blankets in Organically Managed Carrot Production

Weed Suppression Potential of Living Mulches, Newspaper Hydromulches, and Compost Blankets in Organically Managed Carrot Production

In‐field evaporative protection for dryland wheat and lentil crops using polymers

Closing the Loop with Keratin-Rich Fibrous Materials

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