Biogas-digestate as nutrient source for biomass production of Sida hermaphrodita, Zea mays L. and Medicago sativa L.

被引：74

作者：

Barbosa, Daniela Bueno Piaz ^{[1
]}

Nabel, Moritz ^{[1
]}

Jablonowski, Nicolai David ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Bio & Geosci, IBG Plant Sci 2, D-52425 Julich, Germany

来源：

EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY 2014, EGU DIVISION ENERGY, RESOURCES & THE ENVIRONMENT (ERE) | 2014年 / 59卷

关键词：

residue; fertilization; energy crops; nutrients cycling; GROWTH; YIELD; SOIL; RESIDUES; ENERGY;

D O I：

10.1016/j.egypro.2014.10.357

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A sustainable management of the residues from biogas plants has to be considered due its potential use as plant fertilizer and soil conditioner. Our objective was to evaluate the biogas-digestate as a nutrient source for biomass production of three different plants: sida (Sida hermaphrodita - Malvaceae), maize (Zea mays L. - Poaceae) and alfalfa (Medicago sativa L. - Fabaceae). The used biogas-digestate was obtained after the anaerobic digestion of maize silage, as the major feedstock, and minor amounts of chicken manure. The treatments were established in five replicates including biogas-digestate, NPK fertilizer and a control. Pots were filled with the fertilized soils (biogas-digestate and NPK treatments) and control soil, and seedlings were transplanted and grown for 30 days under greenhouse conditions. Analysis of the shoot and root dry mass and nutrients content (C, N and P) of Sida hermaphrodita, Zea mays L. and Medicago sativa L. revealed similar values for both biogas-digestate and the NPK fertilizer applications, which were greater than the control, showing a positive fertilizing effect of the biogas-digestate for biomass production of the respective plants. (C) 2014 The Authors. Published by Elsevier Ltd.

引用

页码：120 / 126

页数：7

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