Evolution of soil cover and dry shoot phytomass accumulation of autumn/winter cover crops and its effect on the agronomic performance of soybean grown in succession

The cultivation of cover crops under no-tillage systems can promote positive improvements in soil attributes and increases grain yield successor crops, such as soybeans. aim this work was to evaluate the evolution accumulation dry shoot phytomass autumn/winter their impact on agronomic performance soybean grown succession. Black oats (Avena strigosa), rye (Secale cereale) turnip (Raphanus sativus) were used species single dual triple intercropping, addition fallow weeded controls. percentage (%) evaluated at 30, 45, 60, 75, 90 105 days after sowing (DAS). In crop, plant height, number productive nodes per plant, pods mass a thousand grains evaluated. provided fastest coverage, with 90.0% 45 DAS. intercropping between + largest accumulations phytomass, greater than 7.0 Mg ha-1 highest yields obtained succession black oat single, yielding approximately 3,300 kg ha-1, 50% higher compared treatments.