Sugarcane and pinewood biochar effects on activity and aerobic soil dissipation of metribuzin and pendimethalin

White, Paul M.; Potter, Thomas L.; Lima, Isabel M.

doi:10.1016/j.indcrop.2015.04.022

Cited by 29 publications

(17 citation statements)

References 36 publications

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“…The reported advantages of adding biochars to soils and soilless growing media include a greater ability to retain plant nutrients by reducing nutrient leaching, the addition of nutrients to the soil system, and decreasing the existing bulk densities, which increases aeration and root penetration (Laird, 2008;Vaughn et al, 2013;White et al, 2015). In contrast to sugarcane bagasse ash, adding biochar to a soilless growing media should provide a more ideal physical environment (Laird, 2008;Webber et al, 2016Webber et al, , 2017b.…”

Section: Introductionmentioning

confidence: 99%

Sugarcane and Pine Biochar as Amendments for Greenhouse Growing Media for the Production of Bean (Phaseolus vulgaris L.) Seedlings

Webber¹,

White²,

Gu³

et al. 2018

JAS

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Louisiana sugarcane farmers in 2016 harvested 11.7 million Mg of millable sugarcane from 163,000 ha, producing 1.47 million Mg of raw sugar and an estimated 3.5 million Mg of bagasse. Even though Louisiana sugar mills use 80% to 90% of the bagasse for fuel production, another 350,000 to 700,000 Mg of bagasse accumulates each year. The conversion of the excess bagasse into biochar is one solution to reduce the excess supply. Research was conducted to determine the impact of sugarcane biochar as an amendment to soilless planting media for the production of green bean (Phaseolus vulgaris L.) seedlings. Sugarcane bagasse biochar (SBB) and pine biochar (PB) were each combined by volume with a commercial certified organic soilless growing media into 5 combinations (0%:100%, 25%:75%, 50%:50%, 75%:25%, and 100%:0%, biochars and growing media, respectively). Green bean variety ‘Bowie’ seeds were planted in each of the different planting mixtures. The particle size distribution for the two biochars are in stark contrast to each other with the PB particle median, mean, geometric mean, and mode much greater than those of the SBB. As amendments to the soilless greenhouse growing media, the biochars (SBB and PB) functioned very well, especially at the 25% and 75% levels. The 100% SBB performed as well as the 100% commercial soilless growing media and slightly better than the 100% PB when comparing seedling fresh and dry weights. The 100% PB is not recommended as a soilless growing media even with the supplemental fertilizer used in these experiments. These results indicate that the volume of a standard soilless greenhouse growing media can be successfully extended by adding 25% to 75% SBB and PB without reducing bean seedling growth. Future research is needed to evaluate these biochars for the production of additional plant species.

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Section: Introductionmentioning

confidence: 99%

Sugarcane and Pine Biochar as Amendments for Greenhouse Growing Media for the Production of Bean (Phaseolus vulgaris L.) Seedlings

Webber¹,

White²,

Gu³

et al. 2018

JAS

Self Cite

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“…However, even with higher herbicide sorption capacity, degradation at high pyrolysis temperatures may be more intensified than low temperatures. The addition of sugarcane bagasse biochar produced at 700°C in clay soil decreased the DT 50 of metribuzin from 57 (unamended soil) to 39 days, but when biochar was produced at 350°C, DT 50 went from 57 to 74 days (Table 1) [56]. These conflicting results could be due to the impact of ash on the alkalinity of the soil amended with biochar produced at 700°C (20.3% of ash), which increased the soil pH and improved the conditions for the degradation of metribuzin, and to the greater amount of dissolved OC from biochar produced at 350°C (3.78 mg g −1 ), which is more preferred by microorganisms as substrate, increasing the persistence of the herbicide.…”

Section: Factors Affecting Herbicide Degradation In Biochar-amended Soilsmentioning

confidence: 99%

Degradation Process of Herbicides in Biochar-Amended Soils: Impact on Persistence and Remediation

Mielke¹,

Mendes²,

Sousa³

et al. 2022

Biodegradation Technology of Organic and Inorganic Pollutants

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Biochar is a solid material derived from different feedstocks that is added to the soil for various agronomic and environmental purposes, such as nutrient sources and CO2 emission mitigators. In modern agriculture, the application of herbicides directly in the soil is common for pre-emergent weed control; however, biochars may interfere in the degradation processes of these agrochemicals, increasing or decreasing their persistence. Long persistence is desirable for some herbicides in determined cultivation systems, especially in monoculture, but persistence is undesirable in crop rotation and/or succession systems because the subsequent cropping can be sensitive to the herbicide, causing carryover problems. Therefore, knowing the interactions of biochar-herbicide is essential, since these interactions depend on feedstock, pyrolysis conditions (production temperature), application rate, biochar aging, among other factors; and the physical-chemical characteristics of the herbicide. This chapter shows that the addition of biochar in the soil interferes in the persistence or remediation processes of the herbicide, and taking advantage of the agricultural and environmental benefits of biochars without compromising weed control requires a broad knowledge of the characteristics of biochar, soil, and herbicide and their interactions.

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“…time of pendimethalin [12,61] in sandy acid soil. A different set of individuals was used for each time point.…”

Section: Laboratory Toxicity Test Set Upmentioning

confidence: 99%

“…The immune parameters were measured in the beetles before the treatments (hereafter referred to as the control group) and at three different time points (2, 7 and 21 days) after a single application of pendimethalin for both experiments. The exposure time was chosen by considering the degradation time of pendimethalin [12,61] in sandy acid soil. A different set of individuals was used for each time point.…”

Section: Enzymatic Assaysmentioning

confidence: 99%

Continuous Agrochemical Treatments in Agroecosystems Can Modify the Effects of Pendimethalin-Based Herbicide Exposure on Immunocompetence of a Beneficial Ground Beetle

et al. 2019

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Herbicide application for pest control can negatively affect soil biodiversity, mainly acting on species that are involved in ecosystem service. In this study, field and laboratory trials were designed to assay herbicide exposure effects on the constitutive immunity of Harpalus (Pseudoophonus) rufipes (De Geer, 1774), a beneficial carabid species that inhabits croplands. The circulating hemocytes (THCs) and plasmatic levels of basal and total phenoloxidase (PO), as well as lysozyme-like enzyme activities, were measured as markers of exposure. In laboratory tests, the exposure to realistic field doses of pendimethalin-based herbicides for two, seven and 21 days caused a reduction in enzyme activities in beetles from organic crops. In beetles from conventional fields, the THCs and total PO activity decreased significantly at two and seven days after the initial exposure, though no effects were recorded on basal PO and lysozyme like-enzyme activities. These differences in enzyme activities and THCs indicate that the interference of pendimethalin with immune parameters clearly depends on both the different field conditions from which the population comes and the cumulative effects of repeated applications over the time.

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Sugarcane and pinewood biochar effects on activity and aerobic soil dissipation of metribuzin and pendimethalin

Cited by 29 publications

References 36 publications

Sugarcane and Pine Biochar as Amendments for Greenhouse Growing Media for the Production of Bean (Phaseolus vulgaris L.) Seedlings

Sugarcane and Pine Biochar as Amendments for Greenhouse Growing Media for the Production of Bean (Phaseolus vulgaris L.) Seedlings

Degradation Process of Herbicides in Biochar-Amended Soils: Impact on Persistence and Remediation

Continuous Agrochemical Treatments in Agroecosystems Can Modify the Effects of Pendimethalin-Based Herbicide Exposure on Immunocompetence of a Beneficial Ground Beetle

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