Biogenic control and limitation of soil parasitic nematode proliferation in the field

摘要

Invention Patent: B "BIOGENICAL CONTROL AND LIMITATION OF THE PROLIFERATION OF PARASITE SOIL NEMATODES IN THE TILL" D. The invention relates to the use of (a) phosphorus compounds containing at least partially lipophilic organic radicals together with (b) urea and / or urea derivatives in proportions of quantities selected from (a) to (b) as a soil additive for biological control of plant parasitic soil nematodes by strengthening the equivalent antagonistic potential of the soil, more particularly by strengthening the growth of antagonistic and / or nematicidal rhizosphere bacteria and / or corresponding mycorrhiza strains - and at the same time strengthening the growth of plants grown in the soil. Multicomponent mixtures that strengthen bacterial growth are preferably introduced into the plant root region in the form of an aqueous preparation using emulsifiers compatible with plants before and / or during plant growth. Components (a) and (b) are used in proportions of quantity such that the weight ratio of C to N is not greater than 6: 1 and preferably not greater than 5: 1.