Abstract
The after-effect of conservation tillage of onion on carrot yielding was investigated in field experiment. Biomass from intercrops: spring rye (Secale cereale) and common vetch (Vicia sativa) was cultivated for forecrop (onion) and incorporated with the soil with the use of fall and spring disking or direct sowing of onion in mulch. Check was determined as a conventional ploughing without mulching plants. Carrot as a successive crop was cultivated in conventional tillage without differentiation of pre-sowing cultivation. Various methods of conservation tillage with spring rye and common vetch utilization as cover crops for forecrop (onion) were proved positive influence on total and marketable yield of carrots roots in after-effect in the second year after their application. Conservation tillage was exerted advantageous influence on all tested properties of roots yield in after-effect in comparison to conventional cultivation without cover crops.