All Title Author
Keywords Abstract


DANOS MEC NICOS OCASIONADOS POR SISTEMAS DOSADORES DE SEMENTES MECHANICAL DAMAGE CAUSED BY SEED METERING SYSTEMS

DOI: 10.5216/pat.v33i1.2391

Keywords: Semeadoras , distribuidores de sementes , rotor acanalado

Full-Text   Cite this paper   Add to My Lib

Abstract:

Avaliaram-se os efeitos de danos mecanicos ocasionados por cinco sistemas dosadores de sementes, em quatro culturas. Amostras das sementes foram coletadas antes e após passarem pelos sistemas dosadores e foram submetidas a testes de pureza, germina o e vigor. N o houve diferen a entre os efeitos de danos mecanicos ocasionados pelos sistemas dosadores empregados nas sementes de milho. Para as sementes de feij o, menores efeitos foram verificados quando da utiliza o dos dosadores pneumático a vácuo e copo dosador. O sistema rotor acanalado causou menores danos às sementes de arroz e os sistemas disco horizontal perfurado e copo dosador foram os que menos danificaram as sementes de soja. O sistema dosador pneumático a vácuo ocasionou o maior índice de dano mecanico nas sementes de soja. PALAVRAS-CHAVE: Semeadoras; distribuidores de sementes; rotor acanalado. Effects of mechanical damage caused by five seed metering systems were evaluated in four crops. Seed samples were collected before and after passing through the measuring systems and submitted to tests of purity, germination and vigor. There was no difference in the level of mechanical damage caused by the metering systems used for maize seeds. For common bean seeds, minor effects were verified when using the vacuum metering disk and the feed cup. The fluted feed system showed the best performance for rice seeds, and the horizontal perforated disk and feed cup systems exhibited the best results for soybean seeds. The vacuum metering disk system caused the highest level of mechanical damage to soybean seeds. KEY-WORDS: Planter machine; seed distributor; fluted feed.

Full-Text

comments powered by Disqus