Summary
In pot-and field trials organic material and/orTrichoderma were added to difrerent soils, most of which were infested withRhizoctonia. At different times after the addition potato tubers were planted, in order to investigate if a reduction of sclerotia on the crop could be obtained. Little effect resulted from the addition of peat, wheat-straw orTrichoderma.
After addition of 20 g corn-meal to 1 kg of soil, in most instances combined withTrichoderma, the following effects were obtained: 1. fewer weeds, 2. delayed appearance of the sprouts, 3. fewer (though in a single case more) sclerotia on the crop, 4. less scab, and 5. increased yield (cf. table 1).
The variable, results may be attributed to differences in soil and to many factors influencing the interaction between plants and micro-organisms in the soil. Further research is desirable.
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de Boer, S. De invloed van het toevoegen van organisch materiaal aan de grond op het optreden vanRhizoctonia-ziekte en schurft bij aardrappelen. Tijdschrift Over Plantenziekten 68, 268–277 (1962). https://doi.org/10.1007/BF02044434
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DOI: https://doi.org/10.1007/BF02044434