Retention properties of wood residues and their potential for soil amelioration

Dünisch, Oliver; Lima, Valmiqui Costa; Seehann, G.; Donath, Johannes; Montóia, Valdinez Ribeiro; Schwarz, Thomas

doi:10.1007/s00226-006-0098-1

Cited by 28 publications

(9 citation statements)

References 24 publications

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“…If BC retains more nutrients, their loss through leaching could be reduced. This process for increasing nutrient availability has been shown in laboratory (Dünisch et al, 2007; Novak et al, 2009a; Laird et al, 2010b; Singh et al, 2010) and greenhouse studies with plants (Lehmann et al, 2003; Knowles et al, 2011). Lehmann et al (2003) found that “fresh” BC addition to a tropical Oxisol led to a 60% reduction in leaching of applied ammonium (NH 4 + ) compared with the unamended control over 40 d of cropping rice ( Oryza sativa L.).…”

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confidence: 75%

Nutrient Leaching in a Colombian Savanna Oxisol Amended with Biochar

et al. 2012

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Nutrient leaching in highly weathered tropical soils often poses a challenge for crop production. We investigated the eff ects of applying 20 t ha −1 biochar (BC) to a Colombian savanna Oxisol on soil hydrology and nutrient leaching in fi eld experiments. Measurements were made over the third and fourth years after a single BC application. Nutrient contents in the soil solution were measured under one maize and one soybean crop each year that were routinely fertilized with mineral fertilizers. Leaching by unsaturated water fl ux was calculated using soil solution sampled with suction cup lysimeters and water fl ux estimates generated by the model HYDRUS 1-D. No signifi cant diff erence (p > 0.05) was observed in surface-saturated hydraulic conductivity or soil water retention curves, resulting in no relevant changes in water percolation after BC additions in the studied soils. However, due to diff erences in soil solution concentrations, leaching of inorganic N, Ca, Mg, and K measured up to a depth of 0.6 m increased (p < 0.05), whereas P leaching decreased, and leaching of all nutrients (except P) at a depth of 1.2 m was signifi cantly reduced with BC application. Changes in leaching at 2.0 m depth with BC additions were about one order of magnitude lower than at other depths, except for P. Biochar applications increased soil solution concentrations and downward movement of nutrients in the root zone and decreased leaching of Ca, Mg, and Sr at 1.2 m, possibly by a combination of retention and crop nutrient uptake.

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confidence: 75%

Nutrient Leaching in a Colombian Savanna Oxisol Amended with Biochar

et al. 2012

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“…Biochar amendment has been proposed as an interesting strategy to retain nitrates in irrigated soils, in order to promote plant consumption of accumulated mineral N, and reduce nitrate leaching [45][46][47]. This beneficial effect of biochar was clearly shown in the second year of the field experiments, as biochar-amended plots that received a reduced amount of irrigation and mineral fertilization showed a higher concentration of nitrates in the soil solution of the root zone in comparison to the plot receiving only manure under the same irrigation and fertilization scheme (Table 3).…”

Section: Soil Fertilitymentioning

confidence: 99%

Agronomic Evaluation of Biochar, Compost and Biochar-Blended Compost across Different Cropping Systems: Perspective from the European Project FERTIPLUS

et al. 2019

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This paper reports the results on the agronomic performance of organic amendments in the EU 7th FP project “FERTIPLUS—reducing mineral fertilizers and agro-chemicals by recycling treated organic waste as compost and bio-char”. Four case studies on field-scale application of biochar, compost and biochar-blended compost were established and studied for three consecutive years in four distinct cropping systems and under different agro-climatic conditions in Europe. These included the following sites: olive groves in Murcia (Spain), greenhouse grown tomatoes in Almeria (Spain), an arable crop rotation in Oost-Vlaanderen (Merelbeke, Belgium), and three vineyards in Friuli Venezia Giulia (Italy). A slow pyrolysis oak biochar was applied, either alone or in combination with organic residues: compost from olive wastes in Murcia (Spain), sheep manure in Almeria (Spain), and compost from biowaste and green waste in Belgium and Italy. The agronomical benefits were evaluated based on different aspects of soil fertility (soil total organic carbon (TOC), pH, nutrient cycling and microbial activity) and crop nutritional status and productivity. All amendments were effective in increasing soil organic C in all the field trials. On average, the increase with respect to the control was about 11% for compost, 20% for biochar-blended compost, and 36% for biochar. The amendments also raised the pH by 0.15–0.50 units in acidic soils. Only biochar had a negligible fertilization effect. On the contrary, compost and biochar-blended compost were effective in enhancing soil fertility by increasing nutrient cycling (25% mean increase in extractable organic C and 44% increase in extractable N), element availability (26% increase in available K), and soil microbial activity (26% increase in soil respiration and 2–4 fold enhancement of denitrifying activity). In general, the tested amendments did not show any negative effect on crop yield and quality. Furthermore, in vineyards and greenhouse grown tomatoes cropping systems, compost and biochar-blended compost were also effective in enhancing key crop quality parameters (9% increase in grape must acidity and 16% increase in weight, 9% increase in diameter and 8% increase in hardness of tomato fruits) important for the quality and marketability of the crops. The overall results of the project suggest that the application of a mixture of biochar and compost can benefit crops. Therefore, biochar-blended compost can support and maintain soil fertility.

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“…In the other studies, maize BCH and urea fertilizer lead to the short-term reductions in soil mineral N availability as a result of probable BCH negative effect on soil quality and fertility characteristics [54]. It might be also caused by the significant absorption of N up to 22.1% with the ash/charcoal woody residues according to the studies of Dünisch et al [56], where actually the same has been observed in the case of available P compounds (up to 11.7%). Biomass and soil P content remained without any significant differences between the G2 treatments ( Figure 6, 7).…”

Section: The Effect Of the Bch Mixed With The Bacterial Inoculums Andmentioning

confidence: 95%

Plant-soil nitrogen, carbon and phosphorus content after the addition of biochar, bacterial inoculums and N fertilizer

Mikajlo¹,

Pourrut²,

Louvel³

et al. 2020

Preprint

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The use of biochar in combination with mineral or biological amendments in order to improve its influence on soil-plant properties has received growing attention. The changes of N, C and P content in Lactuca sativa var. capitata aboveground plant biomass and soil after the addition of beech wood biochar combined with the addition of bacterial inoculums (Bacofil and Novarefm) and N fertilizer have been studied using spectrophotometry methods. Pots were filled with the arable soil from the plots in protection zone of water sources (Březová nad Svitavou, South Moravia, Czech Republic). Biochar with inoculums decreased plant growth in the first yield of Novaferm treatment and in both yields of Bactofil treatment. Increased plant biomass growth was observed with Novaferm addition in the second yield. Total N increase has been obtained in the plant aboveground biomass and soil of the treatments amended with inoculums and nitrogen fertilizer. The decrease of P content has been observed in plant aboveground biomass in the biochar amended samples.

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Retention properties of wood residues and their potential for soil amelioration

Cited by 28 publications

References 24 publications

Nutrient Leaching in a Colombian Savanna Oxisol Amended with Biochar

Nutrient Leaching in a Colombian Savanna Oxisol Amended with Biochar

Agronomic Evaluation of Biochar, Compost and Biochar-Blended Compost across Different Cropping Systems: Perspective from the European Project FERTIPLUS

Plant-soil nitrogen, carbon and phosphorus content after the addition of biochar, bacterial inoculums and N fertilizer

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