Biochar soil amendment increases tomato seedling resistance to drought in sandy soils

Mulcahy, D.N.; Mulcahy, David L.; Dietz, Donald R.

doi:10.1016/j.jaridenv.2012.07.012

Cited by 108 publications

(65 citation statements)

References 11 publications

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“…Also in other parameters measured, such as stress indicators and nutrition, biochar had a stronger ameliorating effect than AM fungi under salinity. An earlier study found that biochar led to increased plant drought resistance (Mulcahy et al, 2013). Considering these results, biochar may be a promising tool to ameliorate saline agricultural soils.…”

Section: Amfmentioning

confidence: 90%

Biochar increases arbuscular mycorrhizal plant growth enhancement and ameliorates salinity stress

Hammer

Forstreuter

Rillig

et al. 2015

Applied Soil Ecology

206

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Section: Amfmentioning

confidence: 90%

Biochar increases arbuscular mycorrhizal plant growth enhancement and ameliorates salinity stress

Hammer

Forstreuter

Rillig

et al. 2015

Applied Soil Ecology

206

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“…Biochar produced from wood pellets (composed of sawdust from several conifer species) decreased tomato seedling wilting due to water stress when mixed at 30% (v/v) with sandy soils (Mulcahy et al, 2013). When substituted for peat moss in potting substrate mixtures in rates up to 15% (v/v), biochars (without acid treatment) produced from hardwood pellets and pelletized wheat straw were similar in performance to mixtures containing only peat moss (Vaughn et al, 2013).…”

Section: Introductionmentioning

confidence: 93%

Evaluation of biochar-anaerobic potato digestate mixtures as renewable components of horticultural potting media

Vaughn

Eller

Evangelista

et al. 2015

Industrial Crops and Products

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“…More recent work also suggests the notion that increased soil available water, due to biochar incorporation, is restricted to sandy soils [48,80,118,119]. The use of cored soils of different mineralogy, and the addition of biochar at 7 t ha -1 , showed incubation time, which including a series of wetting and drying cycles, increased soil available water [120].…”

Section: The Evidence For Biochar Increasing Soil Water Availabilitymentioning

confidence: 99%

Biochar: an improver of nutrient and soil water availability - what is the evidence?

Scott¹,

Ponsonby²,

Atkinson

2014

CABI Reviews

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Keywords: Biochar nutrient availability water availability soil fertility water holding capacity Methodology CAB Abstracts and Science Direct (keywords biochar, nutrients, water) along with sources at the University of Greenwich were searched to obtain up to date research papers. Personal collections of the corresponding author were obtained from various sources over the past 5 years were also used.This material has been published in CAB Reviews (2014) AbstractBiochar has consistently been proposed as a way of improving soil fertility by increasing nutrient and soil water availability. This review critically investigates recent literature, focussing particularly on these agronomic aspects of biochar. We clarify the differences between biochar made from plant (plant derived biochar, PDB) and animal feedstock (animal derived biochar, ADB) and show how pyrolysis temperature affects biochar properties. We also tabulate crop yield data against production variables using recent field and greenhouse studies. We find evidence to suggest that ADB supplies many more nutrients than PDB and that, in general, biochar can improve nutrient availability indirectly through changes in pH, CEC, soil structure, improved fertiliser efficiency, decreased nutrient leaching and may effect nutrient availability by changing nitrogenous gas release and by changing the soil microbial community, which under some circumstances translates into short term, increased crop yield. Few studies however show complete nutrient, especially N budgets and elaborate on the underlying mechanisms of interaction, especially with regards to microbial induced changes. Also the longevity of the different beneficial effects is questionable as most studies are less than a year long.A synopsis of the literature concludes that biochar application promotes soil water availability, particularly in soils which are degraded or of low quality. Despite this conclusion it is hard to find studies that have adopted methodologies which are fully appropriate to support this notion such as available water capacity and how this changes in response to crop uptake and soil drying. We conclude that the variability in biochar due to variable feedstock and pyrolysis process, as well as particle size and application method, necessitates and also enables production of specific purposedriven biochars to benefit particular aspects of crop production.

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Biochar soil amendment increases tomato seedling resistance to drought in sandy soils

Cited by 108 publications

References 11 publications

Biochar increases arbuscular mycorrhizal plant growth enhancement and ameliorates salinity stress

Biochar increases arbuscular mycorrhizal plant growth enhancement and ameliorates salinity stress

Evaluation of biochar-anaerobic potato digestate mixtures as renewable components of horticultural potting media

Biochar: an improver of nutrient and soil water availability - what is the evidence?

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