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Ryegrass yield and nutrient status after biochar application in two Mediterranean soils

Manolikaki Ioanna, Diamantopoulos Evaggelos

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URI: http://purl.tuc.gr/dl/dias/FB51DF88-48F4-49DF-B094-17BF5F815D56
Year 2017
Type of Item Peer-Reviewed Journal Publication
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Bibliographic Citation I. Manolikaki and E. Diamadopoulos, "Ryegrass yield and nutrient status after biochar application in two Mediterranean soils," Arch. Agron. Soil Sci., vol. 63, no. 8, pp. 1093-1107, Jul. 2017. doi: 10.1080/03650340.2016.1267341 https://doi.org/10.1080/03650340.2016.1267341
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Summary

This study was conducted to evaluate whether biochar, produced by pyrolysis at 300°C from rice husk and grape pomace (GP), affects plant growth, P uptake and nutrient status. A 3-month period of ryegrass (Lolium perenne L.) cultivation was studied on two Mediterranean agricultural soils. Treatments comprised control soils amended only with compost or biochar, and combinations of biochar plus compost, with the addition of all nutrients but P (FNoP) or without any fertilization at all (NoF). Application of both types of biochar or/with compost, in the presence of inorganic fertilization except P, significantly increased (P < 0.05) dry matter yield of ryegrass (58.9–77.6%), compared with control, in sandy loam soil, although no statistically significant increase was observed in loam soil. GP biochar and GP biochar plus compost amended loam soil harvests gave higher P uptake than control, in the presence of inorganic fertilization except P, whereas in sandy loam soil, a statistical increase was recorded only in the last harvest. In addition, Mn and Fe uptake increased with the addition of the amendments in both soils, while Ca increased only in the alkaline loam soil. Biochar addition could enhance ryegrass yield and P uptake, although inorganic fertilization along with soil condition should receive special attention.

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