Combined application of biochar and microbial inoculant for deteriorated soils

COMBINED APPLICATION OF BIOCHAR AND MICROBIAL INOCULANT FOR DETERIORATED SOILS

Project ID: HU09-0029-A1-2013

Projektgazda/Project Promoter

BioFil Mikrobiológiai, Géntechnológiai és Biokémiai Kft./ BioFil Microbiological, Biotechnological and Biochemical Ltd.

Program Operátor/Programme Operator

Szent István Egyetem/ St. István University

Megvalósítási időszak/Implementation period

2014.07.01 – 2016.10.31.

Hazai Projekt Partnerek/National Project Partner

Budapesti Műszaki és Gazdaságtudományi Egyetem/ Budapest University of Technology and Economics, Magyar Tudományos Akadémia Agrártudományi Kutatóközpont (Talajtani és Agrokémiai Intézet)//

Centre for Agricultural Research, Hungarian Academy of Sciences

Donor Projekt Partner/Donor Project Partner

NIBIO, Norvég Biogazdasági Kutatóintézet / NIBIO, Norwegian Institute of Bioeconomy Research

Összköltség / Total budget (EUR)

229 414 543,71/ HUF 809 507,92 EUR

EGT/Norvég támogatás összege / EEA/Norwegian Grant (EUR)

193 460 183,79/ HUF 682 640,03 EUR

Project subpage

The aim of the Terra Preta project was development of a soil amelioration technology to weak structured and degraded sandy and acidic soil applying biochar as soil amendment and as carrier of soil microbial inoculant. Development of the soil amelioration technology with biochar covered the full innovation chain, starting from the idea and characterisation of the acquired biochars, through the scale up experiments, to the first field demonstration and assessment of the efficiency of the applied technology.

In the first phase, twenty biochars were studied by an integrated methodology including physical-chemical, biological and ecotoxicological methods, selecting the biochars for the technological experiments based on multicriteria ranking system developed in the project. According to the microcosm and pot experiments prior to field application the grain husk and paper sludge biochar had the best effect on the acidic sandy soil.

The beneficial effects of various combinations of treatments by biochar and soil inoculant on sandy soils were also demonstrated in field experiments. The biochar increased the pH, water holding capacity, improved nutrient supply and microbial activity of acidic sandy soil, as well as the productivity applied with soil microbial inoculant. The efficiency of the innovative technology has been demonstrated by the developed complex technology verification.