TY - JOUR
T1 - Controlled laboratory system to study soil solarization and organic amendment effects on plant pathogens
AU - Klein, Eyal
AU - Katan, Jaacov
AU - Austerweil, Miriam
AU - Gamliel, Abraham
PY - 2007/11
Y1 - 2007/11
N2 - A controlled laboratory system for simulating soil solarization, with and without organic amendment, was developed and validated using physical, chemical, and biological parameters. The system consists of soil containers that are exposed to controlled and constant aeration, and to temperature fluctuations that resemble those occurring during solarization at various depths. This system enables a separate analysis of volatiles and other components. We recorded a sharp decrease in oxygen concentration in the soil atmosphere followed by a gradual increase to the original concentration during solarization in the field and heating in the simulation system of soil amended with wild rocket (Diplotaxis tenuifolia) or thyme (Thymus vulgaris). The combined treatment of organic amendment and solarization (or heating in the controlled system) was highly effective at controlling populations of Fusarium oxysporum f. sp. radicis-lycopersici. Changes in soil pH, enzymatic activities, and microbial populations followed, in most cases, trends which were similar under both solarization and the heating system, when exposed to controlled aerobic conditions. The reliability and validity of the system in simulating physical, chemical, and biological processes taking place during solarization is demonstrated.
AB - A controlled laboratory system for simulating soil solarization, with and without organic amendment, was developed and validated using physical, chemical, and biological parameters. The system consists of soil containers that are exposed to controlled and constant aeration, and to temperature fluctuations that resemble those occurring during solarization at various depths. This system enables a separate analysis of volatiles and other components. We recorded a sharp decrease in oxygen concentration in the soil atmosphere followed by a gradual increase to the original concentration during solarization in the field and heating in the simulation system of soil amended with wild rocket (Diplotaxis tenuifolia) or thyme (Thymus vulgaris). The combined treatment of organic amendment and solarization (or heating in the controlled system) was highly effective at controlling populations of Fusarium oxysporum f. sp. radicis-lycopersici. Changes in soil pH, enzymatic activities, and microbial populations followed, in most cases, trends which were similar under both solarization and the heating system, when exposed to controlled aerobic conditions. The reliability and validity of the system in simulating physical, chemical, and biological processes taking place during solarization is demonstrated.
KW - Biological control
KW - Herb residues
KW - Pest management
UR - http://www.scopus.com/inward/record.url?scp=36049027095&partnerID=8YFLogxK
U2 - 10.1094/PHYTO-97-11-1476
DO - 10.1094/PHYTO-97-11-1476
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:36049027095
SN - 0031-949X
VL - 97
SP - 1476
EP - 1483
JO - Phytopathology
JF - Phytopathology
IS - 11
ER -