Field experiments were carried out in 1995 and 1996 in several places of Central Poland. Good results of these experiments were: limiting of Heterodera schachtii Schm. population and weed control. During intercrop cultivation new varieties of white mustard and oil radish reduced eelworm population approximately 20-30 %. Only one oil radish variety - Remonta - limited this nematode's population about 40%. A number of weeds was over 40% and cost of weed control about 50% lower in a new sugar beet tillage based on mustard or radish intercrops and mulches than in traditional cultivation. The influence of the new tillage system on sugar beet diseases limiting was not as visible as in the case of eelworm and weeds.
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