Efeito da roda compactadora da semeadora adubadora na emergência da soja

Abstract

The germination of soybeans, grown in the No-Till System, presents recurrent problems, mainly in low humidity conditions. For this reason, a sowing operation can provide better conditions for germination when the settings of the fertilizer sower are located for different soil conditions. The objective of the work was to evaluate soybean germination when sowing with different settings of the compactor wheel. The work was conducted at the Itapevi farm, owned by the Copagril Agrícola company, in the city of São Luiz Gonzaga-RS. It was used in a randomized block design, containing 5 bases of pressure wheel angle and compaction. The results indicate that the angle settings (0 ° and 15 °) and pressure of the compacting wheels (40kPa and 80 kPa) do not interfere with the emergency speed, the emergency emergency index and the final stand of soybean plants, when sowing is carried out on dry soil and, subsequently, regular rainfall occurs. As for the plant stand and the blistering of the soil, they were not influenced when different settings of the compactor wheel occurred.