• Publications
  • Influence
Priming effect of some organic additions to 14C-labelled soil.
Abstract Small amounts of organic substances or finely-ground plant material were added to soil containing 14C-labelled organic matter. The rates of CO2 and 14CO2 production were measured with anExpand
Priming effect of small glucose additions to 14C-labelled soil
Soil was freed of its organic matter by heating it to 400°C. Plants were grown in a 14CO2 atmosphere and from them a labelled “soil organic matter” (humus) was prepared by composting the plantExpand
Biological, Chemical and Integrated Control of Rhizoctonia Solani in Potato
ABSTRACT Jager, G., Velvis, H., Lamers, J.G., Mulder, A. and Roosjen, Js., 1990. Biological, chemical and integrated control of Rhizoctonia solani in potato. The effects of biological, chemical andExpand
Biological control of Rhizoctonia solani on potatoes by antagonists. 1. Preliminary experiments with Verticillium biguttatum, a sclerotium-inhabiting fungus
AbstractA common mycoparasite,Verticillium biguttatum, was found to kill sclerotia ofRhizoctonia solani placed on an inert material (perlite) as well as in soil at 15°C and 20°C, but not at 10°C.Expand
Biological control of Rhizoctonia solani on potatoes by antagonists. 4. Inoculation of seed tubers with Verticillium biguttatum and other antagonists in field experiments
AbstractInoculation of seed potatoes with the mycoparasiteVerticillium biguttatum, isolate M73 (combined withGliocladium roseum in 1981, either alone or mixed with isolate M180 plusExpand
Effect of repeated drying at different temperatures on soil organic matter decomposition and characteristics, and on the soil microflora
Abstract Samples of a slightly acid sand soil were subjected to frequently repeated cycles of drying (85 or 30°C), moistening and incubation (29°C, 4 weeks). During about 60 cycles the loss ofExpand
Suppression of Rhizoctonia solani in potato fields. 1. Occurrence
AbstractA search was made forRhizoctonia solani-suppressive soils by establishing many small experimental plots, half of which were planted withRhizoctonia-infected seed potatoes and the other halfExpand
Inactivation of sclerotia of Rhizoctonia solani on potato tubers by Verticillium biguttatum, a soil-borne mycoparasite
AbstractExperiments in the laboratory and on farms with potato tubers in storage are described in which sclerotia ofRhizoctonia solani were inactivated after inoculation of infected tubers with aExpand
Biological control of Rhizoctonia solani on potatoes by antagonists. 2. Sprout protection against soil-borne R. solani through seed inoculation with Verticilium biguttatum
AbstractVerticillium biguttatum isolate M73, when inoculated on the seed tuber, was found to protect young potato sprouts againstRhizoctonia infection from the soil and also, as was demonstratedExpand
Dynamics ofRhizoctonia solani (black scurf) in successive potato crops
The position of plants withRhizoctonia solani sclerotia (black scurf) on progeny tubers was mapped for an experimental field at Haren where potatoes were grown continuously and in rotation with otherExpand