Contrasting effects of biochar on phosphorus dynamics and bioavailability in different soil types

Bornø, Marie Louise; Müller-Stöver, Dorette Sophie; Liu, Fulai

doi:10.1016/j.scitotenv.2018.01.283

Cited by 129 publications

(78 citation statements)

References 42 publications

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“…The main mechanism of P sorption to biochar has been proposed to be the precipitation of phosphate with calcium and magnesium ( Karunanithi et al., ), and sorption to the large surface area of biochar ( Trazzi et al., ). Results of a recent study, however, showed WSP700 not to have significant effect on P availability ( Bornø et al., ). In our study, P uptake of M– treatments decreased with the application of WSP700 or MSP700 compared to plant P uptake from soil without biochar.…”

Section: Discussionmentioning

confidence: 93%

Nutrient uptake and growth of potato: Arbuscular mycorrhiza symbiosis interacts with quality and quantity of amended biochars

Yang

Ravnskov

Andersen

2020

J. Plant Nutr. Soil Sci.

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Aims: The aim of this study was to explore interactive effects between quality (types) and quantity (application rates) of biochar as well as of arbuscular mycorrhiza (AM) symbiosis on the growth of potato plants. Methods: A low P sandy loam soil was amended with 0%, 1.5%, or 2.5% (w/w) of either of 4 types of biochar, which were produced from wheat straw pellets (WSP) or miscanthus straw pellets (MSP) pyrolyzed at temperatures of either 550°C or 700°C. Potato plants grown in pots containing the soils or soil biochar mixture were inoculated with or without AM fungus (AMF), Rhizophagus irregularis. The experiment was carried out under fully irrigated semi‐field conditions and plants were harvested 101 days after planting. Results: Application of high temperature biochar decreased growth, biomass and tuber yield of potato plants, while the low temperature biochar had a similar effect on yield as plants grown without biochar amendment. Total biomass of potato plants were decreased with the increasing rate of biochar. Arbuscular mycorrhizal fungus inoculation stimulated the growth of potato plants in all organs, increased tuber biomass significantly in 1.5% MSP700 amended plants, and to a lesser degree for WSP700, MSP550, and WSP550. In addition, plant biomass gain was linearly related to N, P, and K uptake, the ratio of P to N in the leaf of plants indicated that all treatments were mainly P‐limited. A multiple linear regression using P uptake and biochar rate as independent variables explained 91% of the variation in total biomass. The single effect of AMF inoculation, type and rate of biochar affected plant N, P and K uptake similarly. While AMF inoculation significantly increased P uptake in potato plants grown in soil with WSP700 or MSP700 despite of the rate of biochar. In general, application of biochar significantly increased AMF root colonization of potato plants. Conclusions: The application of MSP550 at 1.5% combined with AMF stimulated growth of potato the most. Furthermore, the results indicated that the interactive effect of AMF inoculation, biochar type and application rate on potato growth to a large extent could be explained by effects on plant nutrient uptake.

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Section: Discussionmentioning

confidence: 93%

Nutrient uptake and growth of potato: Arbuscular mycorrhiza symbiosis interacts with quality and quantity of amended biochars

Yang

Ravnskov

Andersen

2020

J. Plant Nutr. Soil Sci.

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“…Furthermore, increased availability of B in WBC amended soils is in striking contrast to P availability that decreased in WBC amended soils (S1 and S2), as discussed in Bornø et al. (), even though the two anions participate in similar reactions in soil. According to Broadley et al.…”

Section: Discussionmentioning

confidence: 84%

“…For information on additional analysis performed on the soils see Bornø et al. (). Selected soil properties are presented in Tab.…”

Section: Methodsmentioning

confidence: 99%

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Biochar properties and soil type drive the uptake of macro‐ and micronutrients in maize (Zea mays L.)

Bornø

Müller-Stöver

Liu

2019

J. Plant Nutr. Soil Sci.

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The use of biochar in agriculture is a promising management tool to mitigate soil degradation and anthropogenic climate change. However, biochar effects on soil nutrient bioavailability are complex and several concurrent processes affecting nutrient bioavailability can occur in biochar‐amended soils. In a short‐term pot experiment, the concentration of N, P, K, S, Ca, Mg, Cu, Zn, Mn, B, Fe, and Na in the shoots of maize grown in three different soil types [sandy soil (S1), sandy loam (S2), and sandy clay loam (S3)] was investigated. The soils were either unamended or amended with two different biochars [wheat straw biochar (SBC) or pine wood biochar (WBC)] at two P fertilizer regimes (–/+ P). We used three‐way ANOVA and Principal Component Analyses (PCA) of transformed ionomic data to identify the effects of biochar, soil, and P fertilizer on the shoot nutrient concentrations. Three distinct effects of biochar on the shoot ionome were detected: (1) both biochars added excess K to all three soils causing an antagonistic effect on the uptake of Ca and Mg in maize shoots. (2) Mn uptake was affected by biochar with varying effects depending on the combined effect of biochar and soil properties. (3) WBC increased maize uptake of B, despite the fact that WBC increased soil pH and added additional calcite to the soil, which would be expected to reduce B bioavailability. The results of this study highlight the fact that the bioavailability of several macro and micronutrients is affected by biochar application to soil and that these effects depend on the combined effect of biochar and soils with different properties.

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“… RH, rice husk (more information in Bitarafan, Asghari, et al, ); SRH, standard rice husk; SWS, standard wheat straw; SOS, standard oilseed rape straw (more information on standard biochars is available in Borno Muller‐Stover & Liu, ; Borno, Eduah, Muller‐Stover, & Liu, and https://www.biochar.ac.uk). …”

Section: Methodsmentioning

confidence: 99%

The effect of different biochars on the growth and water use efficiency of fenugreek (Trigonella foenum‐graecumL.)

Bitarafan

Liu

Andreasen

2019

J Agronomy Crop Science

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In two identical pot trials, we investigated the effect of different biochars on the growth and water use efficiency (WUE) of fenugreek (Trigonella foenum‐graecum L.) grown with and without water stress. Plants were grown in pots with and without biochar. Rice husk (RH), standard rice husk (SRH), standard wheat straw (SWS) or standard oilseed rape straw (SOS) biochars were added at a rate of 2% by weight. Irrigation was reduced from 80% of field capacity to 40% in half of the pots to create water stress when 50% of the plants flowered. No significant interaction was observed between irrigation and biochar treatments. Water stress resulted in smaller plants (11.5%), fewer pods (16.1%) and reduced 100‐seed weight (12.6%), seed yield (20.1%) and plant dry weight (55.0%). All standard biochars increased plant dry weight in a range of 18%−25% compared with the controls. There was no significant effect of biochar on the number of pods and seed weight. Only RH, SWS and SOS biochar increased the number of seeds pod−1 by 9.0%−14.5% compared with the controls regardless of water stress. RH and SOS biochars increased seed yield by 16.7 and 21.6%, respectively. RH, SWS and SOS biochar increased the WUE by 17.3%, 10.1% and 16.2% regardless of water stress, respectively. Based on the experiment, we recommend farmers to add biochar whatever type they have available. However, RH and SOS seem to be better than the others are, as they seem to be able to increase seed yield and WUE considerably.

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Contrasting effects of biochar on phosphorus dynamics and bioavailability in different soil types

Cited by 129 publications

References 42 publications

Nutrient uptake and growth of potato: Arbuscular mycorrhiza symbiosis interacts with quality and quantity of amended biochars

Nutrient uptake and growth of potato: Arbuscular mycorrhiza symbiosis interacts with quality and quantity of amended biochars

Biochar properties and soil type drive the uptake of macro‐ and micronutrients in maize (Zea mays L.)

The effect of different biochars on the growth and water use efficiency of fenugreek (Trigonella foenum‐graecumL.)

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